@inproceedings{ScholzeBodermannBurgeretal.2014, author = {Scholze, Frank and Bodermann, Bernd and Burger, Sven and Endres, Johannes and Haase, Anton and Krumrey, Michael and Laubis, Christian and Soltwisch, Victor and Ullrich, Albrecht and Wernecke, Jan}, title = {Determination of line profiles on photomasks using DUV, EUV and X-ray scattering}, volume = {9231}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2065941}, pages = {92310M}, year = {2014}, language = {en} } @article{KaschkeBlomeBurgeretal.2014, author = {Kaschke, Johannes and Blome, Mark and Burger, Sven and Wegener, Martin}, title = {Tapered N-helical metamaterials with three-fold rotational symmetry as improved circular polarizers}, volume = {22}, journal = {Opt. Expr.}, number = {17}, doi = {10.1364/OE.22.019936}, pages = {19936 -- 19946}, year = {2014}, language = {en} } @article{ShchukinLedentsovJrKroppetal.2014, author = {Shchukin, Vitaly and Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Steinle, Gunther and Ledentsov, Jr., Nikolay and Burger, Sven and Schmidt, Frank}, title = {Single-Mode Vertical Cavity Surface Emitting Laser via Oxide-Aperture-Engineering of Leakage of High Order Transverse Modes}, volume = {50}, journal = {IEEE J. Quant. Electron.}, number = {12}, doi = {10.1109/JQE.2014.2364544}, pages = {990 -- 995}, year = {2014}, language = {en} } @inproceedings{SoltwischWerneckeHaaseetal.2014, author = {Soltwisch, Victor and Wernecke, Jan and Haase, Anton and Probst, J{\"u}rgen and Schoengen, Max and Scholze, Frank and Pomplun, Jan and Burger, Sven}, title = {Determination of line profile on nanostructured surfaces using EUV and x-ray scattering}, volume = {9235}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2066165}, pages = {92351D}, year = {2014}, language = {en} } @inproceedings{LedentsovJrKroppShchukinetal.2015, author = {Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Shchukin, Vitaly and Steinle, Gunther and Ledentsov, Jr., Nikolay and Turkiewicz, Jarek P. and Wu, Bo and Shaofeng, Qiu and Ma, Yanan and Zhiyong, Feng and Burger, Sven and Schmidt, Frank and Caspar, Christoph and Freund, Ronald and Choquette, Kent D.}, title = {High-speed modulation, wavelength, and mode control in vertical-cavity surface-emitting lasers}, volume = {9381}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2082951}, pages = {93810F}, year = {2015}, language = {en} } @inproceedings{ShchukinLedentsovJrKroppetal.2015, author = {Shchukin, Vitaly and Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Steinle, Gunther and Ledentsov, Jr., Nikolay and Choquette, Kent D. and Burger, Sven and Schmidt, Frank}, title = {Engineering of optical modes in vertical-cavity microresonators by aperture placement: applications to single-mode and near-field lasers}, volume = {9381}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2077012}, pages = {93810V}, year = {2015}, language = {en} } @article{PetrikKumarFriedetal.2015, author = {Petrik, Peter and Kumar, Nitish and Fried, Miklos and Fodor, B{\´a}lint and Juh{\´a}sz, Gy{\"o}rgy and Pereira, Silvania and Burger, Sven and Urbach, H. Paul}, title = {Fourier ellipsometry - an ellipsometric approach to Fourier scatterometry}, volume = {10}, journal = {J. Eur. Opt. Soc.-Rapid}, doi = {10.2971/jeos.2015.15002}, pages = {15002}, year = {2015}, language = {en} } @inproceedings{MenzelHebestreitMuehligetal.2013, author = {Menzel, Christoph and Hebestreit, Erik and M{\"u}hlig, Stefan and Burger, Sven and Rockstuhl, Carsten and Lederer, Falk and Pertsch, Thomas}, title = {Towards homogeneous magnetic metamaterials - a comprehensive multipole analysis}, booktitle = {Proc. META'13}, editor = {Zouhdi, Said and Al-Naimiy, Hamid}, isbn = {978-2-9545460-0-1}, pages = {502 -- 503}, year = {2013}, language = {en} } @inproceedings{GschreySeifriedKruegeretal.2014, author = {Gschrey, Manuel and Seifried, Marc and Kr{\"u}ger, Luzy and Schmidt, Ronny and Schulze, Jan-Hindrick and Heindel, Tobias and Burger, Sven and Rodt, Sven and Schmidt, Frank and Strittmatter, Andre and Reitzenstein, Stephan}, title = {Advanced Quantum Light Sources: Modelling and Realization by Deterministic Nanofabrication Technologies}, volume = {IPRSN}, booktitle = {Integrated Photonics Research, Silicon and Nanophotonics}, doi = {10.1364/IPRSN.2014.IW1A.3}, pages = {IW1A.3}, year = {2014}, language = {en} } @inproceedings{WohlfeilStamatiadisJaegeretal.2014, author = {Wohlfeil, Benjamin and Stamatiadis, Christos and J{\"a}ger, Matthias and Zimmermann, Lars and Burger, Sven and Petermann, Klaus}, title = {Integrated optical fiber grating coupler on SOI for the excitation of several higher order fiber modes}, booktitle = {Optical Communication (ECOC), 2014 European Conference on}, doi = {10.1109/ECOC.2014.6963980}, pages = {1 -- 3}, year = {2014}, language = {en} } @inproceedings{WiesendangerBischoffJovanovetal.2014, author = {Wiesendanger, Samuel and Bischoff, Thomas and Jovanov, Vladislav and Knipp, Dietmar and Burger, Sven and Lederer, Falk and Rockstuhl, Carsten}, title = {Numerical investigations on the effects of film growth modes on light trapping in silicon thin film solar cells}, booktitle = {Light, Energy and the Environment}, publisher = {OSA}, doi = {10.1364/PV.2014.PF4C.4}, pages = {PF4C.4}, year = {2014}, language = {en} } @misc{HammerschmidtDoepkingBurgeretal.2017, author = {Hammerschmidt, Martin and D{\"o}pking, Sandra and Burger, Sven and Matera, Sebastian}, title = {Field Heterogeneities and their Impact on Photocatalysis: Combining optical and kinetic Monte Carlo Simulations on the Nanoscale}, issn = {1438-0064}, doi = {10.1021/acs.jpcc.9b11469}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-63690}, year = {2017}, abstract = {Gaining insights into the working principles of photocatalysts on an atomic scale is a challenging task. The obviously high complexity of the reaction mechanism involving photo-excited electrons and holes is one reason. Another complicating aspect is that the electromagnetic field, driving photocatalysis, is not homogeneous on a nanoscale level for particle based catalysts as it is influenced by the particle's shape and size. We present a simple model, inspired by the CO2 reduction on titania anatase, which addresses the impact of these heterogeneities on the photocatalytic kinetics by combining kinetic Monte Carlo with electromagnetic wave simulations. We find that average activity and especially efficiency might differ significantly between different particles. Moreover, we find sizable variation of the catalytic activity on a single facet of a nanocrystal. Besides this quantitative heterogeneity, the coverage situation in general changes laterally on this facet and we observe a concomitant change of the rate-determining steps. This heterogeneity on all levels of photocatalytic activity is masked in experimental studies, where only the spatially averaged activity can be addressed. Microkinetic models based on experimental findings might therefore not represent the true micro- scopic behavior, and mechanistic conclusion drawn from these need to be handled with care.}, language = {en} } @inproceedings{JaegerKoeppelHammerschmidtetal.2017, author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Accurate optical simulations of periodic nanostructures on a thick glass substrate}, booktitle = {29th Workshop on Quantum Solar Energy Conversion - (QUANTSOL)}, year = {2017}, language = {en} } @misc{HammerschmidtWeiserSantiagoetal.2017, author = {Hammerschmidt, Martin and Weiser, Martin and Santiago, Xavier Garcia and Zschiedrich, Lin and Bodermann, Bernd and Burger, Sven}, title = {Quantifying parameter uncertainties in optical scatterometry using Bayesian inversion}, issn = {1438-0064}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-64704}, year = {2017}, abstract = {We present a Newton-like method to solve inverse problems and to quantify parameter uncertainties. We apply the method to parameter reconstruction in optical scatterometry, where we take into account a priori information and measurement uncertainties using a Bayesian approach. Further, we discuss the influence of numerical accuracy on the reconstruction result.}, language = {en} } @inproceedings{GregersenRosenkrantzdeLassonHagedornFrandsenetal.2017, author = {Gregersen, Niels and Rosenkrantz de Lasson, Jakob and Hagedorn Frandsen, Lars and H{\"a}yrynen, Teppo and Lavrinenko, Andrei and Moerk, Jesper and Wang, Fengwen and Sigmund, Ole and Kim, Oleksiy S. and Breinbjerg, Olav and Ivinskaya, Aliaksandra and Gutsche, Philipp and Burger, Sven}, title = {Benchmarking five computational methods for analyzing large photonic crystal membrane cavities}, booktitle = {Numerical Simulation of Optoelectronic Devices (NUSOD)}, doi = {10.1109/NUSOD.2017.8010005}, pages = {89}, year = {2017}, language = {en} } @incollection{LedentsovJrShchukinLedentsovJretal.2016, author = {Ledentsov, Jr., Nikolay and Shchukin, Vitaly and Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Burger, Sven and Schmidt, Frank}, title = {New Generation of Vertical-Cavity Surface-Emitting Lasers for Optical Interconnects}, booktitle = {Future Trends in Microelectronics: Journey into the Unknown}, publisher = {John Wiley \& Sons}, doi = {10.1002/9781119069225.ch3-5}, year = {2016}, language = {en} } @article{JaegerKoeppelEisenhaueretal.2017, author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Eisenhauer, David and Chen, Duote and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Optical simulations of advanced light management for liquid-phase crystallized silicon thin-film solar cells}, volume = {10356}, journal = {Proc. SPIE}, doi = {10.1117/12.2273994}, pages = {103560F}, year = {2017}, language = {en} } @inproceedings{NovitskyRosenkrantzdeLassonHagedornFrandsenetal.2017, author = {Novitsky, Andrey and Rosenkrantz de Lasson, Jakob and Hagedorn Frandsen, Lars and Gutsche, Philipp and Burger, Sven and Kim, Oleksiy S. and Breinbjerg, Olav and Ivinskaya, Aliaksandra and Wang, Fengwen and Sigmund, Ole and H{\"a}yrynen, Teppo and Lavrinenko, Andrei and M{\o}rk, Jesper and Gregersen, Niels}, title = {Comparison of five computational methods for computing Q factors in photonic crystal membrane cavities}, booktitle = {19th International Conference on Transparent Optical Networks (ICTON)}, doi = {10.1109/ICTON.2017.8024813}, year = {2017}, language = {en} } @article{BarthRoderBrodoceanuetal.2017, author = {Barth, Carlo and Roder, Sebastian and Brodoceanu, Daniel and Kraus, Tobias and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {Increased fluorescence of PbS quantum dots in photonic crystals by excitation enhancement}, volume = {111}, journal = {Appl. Phys. Lett.}, arxiv = {http://arxiv.org/abs/1708.06566}, doi = {10.1063/1.4995229}, pages = {031111}, year = {2017}, language = {en} } @article{HammerschmidtWeiserSantiagoetal.2017, author = {Hammerschmidt, Martin and Weiser, Martin and Santiago, Xavier Garcia and Zschiedrich, Lin and Bodermann, Bernd and Burger, Sven}, title = {Quantifying parameter uncertainties in optical scatterometry using Bayesian inversion}, volume = {10330}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/1707.08467}, doi = {10.1117/12.2270596}, pages = {1033004}, year = {2017}, language = {en} } @article{SchneiderSantiagoRockstuhletal.2017, author = {Schneider, Philipp-Immanuel and Santiago, Xavier Garcia and Rockstuhl, Carsten and Burger, Sven}, title = {Global optimization of complex optical structures using Bayesian optimization based on Gaussian processes}, volume = {10335}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/1707.08479}, doi = {10.1117/12.2270609}, pages = {103350O}, year = {2017}, language = {en} } @article{SantiagoBurgerRockstuhletal.2017, author = {Santiago, Xavier Garcia and Burger, Sven and Rockstuhl, Carsten and Fernandez-Corbaton, Ivan}, title = {Measuring the electromagnetic chirality of 2D arrays under normal illumination}, volume = {42}, journal = {Opt. Lett.}, arxiv = {http://arxiv.org/abs/1912.07033}, doi = {10.1364/OL.42.004075}, pages = {4075}, year = {2017}, language = {en} } @misc{HammerschmidtPomplunBurgeretal.2014, author = {Hammerschmidt, Martin and Pomplun, Jan and Burger, Sven and Schmidt, Frank}, title = {Adaptive sampling strategies for efficient parameter scans in nano-photonic device simulations}, issn = {1438-0064}, doi = {10.1117/12.2036363}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-50395}, year = {2014}, abstract = {Rigorous optical simulations are an important tool in optimizing scattering properties of nano-photonic devices and are used, for example, in solar cell optimization. The finite element method (FEM) yields rigorous, time-harmonic, high accuracy solutions of the full 3D vectorial Maxwell's equations [1] and furthermore allows for great flexibility and accuracy in the geometrical modeling of these often complex shaped 3D nano-structures. A major drawback of frequency domain methods is the limitation of single frequency evaluations. For example the accurate computation of the short circuit current density of an amorphous silicon / micro-crystalline multi-junction thin film solar cell may require the solution of Maxwell's equations for over a hundred different wavelengths if an equidistant sampling strategy is employed. Also in optical metrology, wavelength scans are frequently used to reconstruct unknown geometrical and material properties of optical systems numerically from measured scatterometric data. In our contribution we present several adaptive numerical integration and sampling routines and study their efficiency in the context of the determination of generation rate profiles of solar cells. We show that these strategies lead to a reduction in the computational effort without loss of accuracy. We discuss the employment of tangential information in a Hermite interpolation scheme to achieve similar accuracy on coarser grids. We explore the usability of these strategies for scatterometry and solar cell simulations.}, language = {en} } @inproceedings{GschreySeifriedKruegeretal.2014, author = {Gschrey, Manuel and Seifried, Marc and Kr{\"u}ger, Luzy and Schmidt, Ronny and Schulze, Jan-Hindrick and Heindel, Tobias and Burger, Sven and Rodt, Sven and Schmidt, Frank and Strittmatter, Andre and Reitzenstein, Stephan}, title = {Boosting the photon-extraction efficiency of nanophotonic structures by deterministic microlenses}, booktitle = {CLEO: 2014}, publisher = {Optical Society of America}, doi = {10.1364/CLEO_QELS.2014.FF2K.2}, pages = {FF2K.2}, year = {2014}, language = {en} } @article{WiesendangerBischoffJovanovetal.2014, author = {Wiesendanger, Samuel and Bischoff, Thomas and Jovanov, Vladislav and Knipp, Dietmar and Burger, Sven and Lederer, Falk and Rockstuhl, Carsten}, title = {Effects of film growth modes on light trapping in silicon thin film solar cells}, volume = {104}, journal = {Appl. Phys. Lett.}, number = {23}, doi = {10.1063/1.4882997}, pages = {231103}, year = {2014}, language = {en} } @misc{AmiranashviliBandelowBlomeetal.2014, author = {Amiranashvili, Shalva and Bandelow, Uwe and Blome, Mark and Burger, Sven and Schmidt, Frank and Schmidt, Kersten and Zschiedrich, Lin}, title = {Nanophotonics and nonlinear fiber optics}, volume = {1}, journal = {MATHEON-Mathematics for Key Technologies}, editor = {Deuflhard, Peter and et al.,}, publisher = {European Mathematical Society}, doi = {10.4171/137}, pages = {257 -- 275}, year = {2014}, language = {en} } @article{MenzelHebestreitAlaeeetal.2014, author = {Menzel, Christoph and Hebestreit, Erik and Alaee, Rasoul and Albooyeh, Mohammad and M{\"u}hlig, Stefan and Burger, Sven and Rockstuhl, Carsten and Simovski, Constantin and Tretyakov, Sergei and Lederer, Falk and Pertsch, Thomas}, title = {Extreme Coupling: a route towards local magnetic metamaterials}, volume = {89}, journal = {Phys. Rev. B}, doi = {10.1103/PhysRevB.89.155125}, pages = {155125}, year = {2014}, language = {en} } @article{MenzelHebestreitMuehligetal.2014, author = {Menzel, Christoph and Hebestreit, Erik and M{\"u}hlig, Stefan and Rockstuhl, Carsten and Burger, Sven and Lederer, Falk and Pertsch, Thomas}, title = {The spectral shift between near- and far-field resonances of optical nano-antennas}, volume = {22}, journal = {Opt. Expr.}, number = {8}, doi = {10.1364/OE.22.009971}, pages = {9971 -- 9982}, year = {2014}, language = {en} } @article{McPeakvanEngersBlomeetal.2014, author = {McPeak, Kevin and van Engers, Christian D. and Blome, Mark and Park, Jong Hyuk and Burger, Sven and Gosalvez, Miguel A. and Faridi, Ava and Ries, Yasmina and Sahu, Ayaskanta and Norris, David}, title = {Complex Chiral Colloids and Surfaces via High-Index Off-Cut Silicon}, volume = {14}, journal = {Nano Lett.}, number = {5}, doi = {10.1021/nl501032j}, pages = {2934 -- 2940}, year = {2014}, language = {en} } @misc{HammerschmidtHerrmannBurgeretal.2016, author = {Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Pomplun, Jan and Schmidt, Frank}, title = {Reduced basis method for the optimization of nano-photonic devices}, issn = {1438-0064}, doi = {10.1007/s11082-016-0530-1}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-57556}, year = {2016}, abstract = {Optical 3D simulations in many-query and real-time contexts require new solution strategies. We study an adaptive, error controlled reduced basis method for solving parametrized time-harmonic optical scattering problems. Application fields are, among others, design and optimization problems of nano-optical devices as well as inverse problems for parameter reconstructions occuring e. g. in optical metrology. The reduced basis method presented here relies on a finite element modeling of the scattering problem with parametrization of materials, geometries and sources.}, language = {en} } @article{PoulikakosGutscheMcPeaketal.2016, author = {Poulikakos, Lisa and Gutsche, Philipp and McPeak, Kevin and Burger, Sven and Niegemann, Jens and Hafner, Christian and Norris, David}, title = {The Optical Chirality Flux as a Useful Far-Field Probe of Chiral Near Fields}, volume = {3}, journal = {ACS Photonics}, arxiv = {http://arxiv.org/abs/1601.06716}, doi = {10.1021/acsphotonics.6b00201}, pages = {1619}, year = {2016}, language = {en} } @misc{HammerschmidtHerrmannPomplunetal.2016, author = {Hammerschmidt, Martin and Herrmann, Sven and Pomplun, Jan and Burger, Sven and Schmidt, Frank}, title = {Model order reduction for the time-harmonic Maxwell equation applied to complex nanostructures}, volume = {9742}, journal = {Proc. SPIE}, issn = {1438-0064}, doi = {10.1117/12.2212367}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-57239}, pages = {97420M}, year = {2016}, abstract = {Fields such as optical metrology and computational lithography require fast and efficient methods for solving the time-harmonic Maxwell's equation. Highly accurate geometrical modeling and numerical accuracy atcomputational costs are a prerequisite for any simulation study of complex nano-structured photonic devices. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem based on the hp-adaptive finite element solver JCMsuite capable of handling geometric and non-geometric parameter dependencies allowing for online evaluations in milliseconds. We apply the RBM to compute light-scatteringoptical wavelengths off periodic arrays of fin field-effect transistors (FinFETs) where geometrical properties such as the width and height of the fin and gate can vary in a large range.}, language = {en} } @misc{HammerschmidtBarthPomplunetal.2016, author = {Hammerschmidt, Martin and Barth, Carlo and Pomplun, Jan and Burger, Sven and Becker, Christiane and Schmidt, Frank}, title = {Reconstruction of photonic crystal geometries using a reduced basis method for nonlinear outputs}, issn = {1438-0064}, doi = {10.1117/12.2212482}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-57249}, year = {2016}, abstract = {Maxwell solvers based on the hp-adaptive finite element method allow for accurate geometrical modeling and high numerical accuracy. These features are indispensable for the optimization of optical properties or reconstruction of parameters through inverse processes. High computational complexity prohibits the evaluation of the solution for many parameters. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem allowing to compute solutions for a parameter configuration orders of magnitude faster. The RBM allows to evaluate linear and nonlinear outputs of interest like Fourier transform or the enhancement of the electromagnetic field in milliseconds. We apply the RBM to compute light-scattering off two dimensional photonic crystal structures made of silicon and reconstruct geometrical parameters.}, language = {en} } @misc{GutschePoulikakosBurgeretal.2016, author = {Gutsche, Philipp and Poulikakos, Lisa and Burger, Sven and Hammerschmidt, Martin and Schmidt, Frank}, title = {Optical chirality: conservation law in arbitrary space}, journal = {606. WE-Heraeus-Seminar on Nanophotonics and Complex Spatial Modes of Light}, year = {2016}, abstract = {The introduction of the near-field quantity of optical chirality has emerged in various numerical and few experimental studies of local chirality enhancement due to its relation to the excitation rate of chiral molecules. This time-even pseudoscalar has been dismissed as being a higher-order version of helicity. Nevertheless, we revisit the derivation of the underlying conservation law and define optical chirality in media similar to. We identify the mechanism of chirality conversion by either inhomogeneous or anisotropic space to complement the conservation of optical chirality. The conservation law of optical chirality in arbitrary space enables the extension of the concept of polarization to the near-field where no distiniguished propagation direction of light is present. We show that the connection of electromagnetic energy and optical chirality provide the ability to define a circular polarization basis in time-harmonic near-field analysis. In order to illustrate our theory, we present electromagnetic field simulations of simple as well as more complex nanostructures. Results using the well-known far-field polarization concept are readily reproduced and extended from the point of view of chirality conversion.}, language = {en} } @article{FodorKozmaBurgeretal.2016, author = {Fodor, B{\´a}lint and Kozma, Peter and Burger, Sven and Fried, Miklos and Petrik, Peter}, title = {Effective medium approximation of ellipsometric response from random surface roughness simulated by finite-element method}, volume = {617}, journal = {Thin Solid Films}, arxiv = {http://arxiv.org/abs/1902.09903}, doi = {10.1016/j.tsf.2016.01.054}, pages = {20}, year = {2016}, language = {en} } @inproceedings{BurgerHammerschmidtHerrmannetal.2015, author = {Burger, Sven and Hammerschmidt, Martin and Herrmann, Sven and Pomplun, Jan and Schmidt, Frank}, title = {Reduced basis methods for optimization of nano-photonic devices}, booktitle = {Proc. Int. Conf. Numerical Simulation of Optoelectronic Devices (NUSOD)}, doi = {10.1109/NUSOD.2015.7292871}, pages = {159}, year = {2015}, language = {en} } @article{LedentsovJrShchukinLedentsovJretal.2016, author = {Ledentsov, Jr., Nikolay and Shchukin, Vitaly and Ledentsov, Jr., Nikolay and Kropp, J{\"o}rg-R. and Burger, Sven and Schmidt, Frank}, title = {Direct Evidence of the Leaky Emission in Oxide-Confined Vertical Cavity Lasers}, volume = {52}, journal = {IEEE J. Quant. Electron.}, number = {3}, doi = {10.1109/JQE.2016.2518081}, pages = {2400207}, year = {2016}, language = {en} } @inproceedings{JaegerBarthHammerschmidtetal.2015, author = {J{\"a}ger, Klaus and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Sinusoidal Nanotextures for Coupling Light into c-Si Thin-Film Solar Cells}, booktitle = {Light, Energy and the Environement 2015}, doi = {10.1364/PV.2015.PTu4B.3}, pages = {PTu4B.3}, year = {2015}, language = {en} } @inproceedings{BarthJaegerBurgeretal.2015, author = {Barth, Carlo and J{\"a}ger, Klaus and Burger, Sven and Hammerschmidt, Martin and Schmidt, Frank and Becker, Christiane}, title = {Design of Photonic Crystals with Near-Surface Field Enhancement}, booktitle = {Light, Energy and the Environement 2015}, doi = {10.1364/PV.2015.JTu5A.9}, pages = {JTu5A.9}, year = {2015}, language = {en} } @inproceedings{ThomaSchnauberGschreyetal.2015, author = {Thoma, Alexander and Schnauber, Peter and Gschrey, Manuel and Schmidt, Ronny and Wohlfeil, Benjamin and Seifried, Marc and Schulze, Jan-Hindrick and Burger, Sven and Schmidt, Frank and Strittmatter, Andre and Rodt, Sven and Heindel, Tobias and Reitzenstein, Stephan}, title = {Indistinguishable Photons from Deterministic Quantum Dot Microlenses}, booktitle = {European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference}, doi = {10.1364/IPRSN.2015.IS4A.6}, pages = {EA_8_5}, year = {2015}, language = {en} } @article{JaegerBarthHammerschmidtetal.2016, author = {J{\"a}ger, Klaus and Barth, Carlo and Hammerschmidt, Martin and Herrmann, Sven and Burger, Sven and Schmidt, Frank and Becker, Christiane}, title = {Simulations of sinusoidal nanotextures for coupling light into c-Si thin-film solar cells}, volume = {24}, journal = {Opt. Express}, doi = {10.1364/OE.24.00A569}, pages = {A569}, year = {2016}, language = {en} } @article{LedentsovJrShchukinKroppetal.2016, author = {Ledentsov, Jr., Nikolay and Shchukin, Vitaly and Kropp, J{\"o}rg-R. and Burger, Sven and Schmidt, Frank and Ledentsov, Jr., Nikolay}, title = {Direct visualization of the in-plane leakage of high-order transverse modes in vertical-cavity surface-emitting lasers mediated by oxide-aperture engineering}, volume = {9766}, journal = {Proc. SPIE}, doi = {10.1117/12.2208909}, pages = {976608}, year = {2016}, language = {en} } @article{PomplunBurgerZschiedrichetal.2016, author = {Pomplun, Jan and Burger, Sven and Zschiedrich, Lin and Gutsche, Philipp and Schmidt, Frank}, title = {Method for fast computation of angular light scattering spectra from 2D periodic arrays}, volume = {9778}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/1603.04169}, doi = {10.1117/12.2219666}, pages = {977839}, year = {2016}, language = {en} } @article{GutschePoulikakosHammerschmidtetal.2016, author = {Gutsche, Philipp and Poulikakos, Lisa and Hammerschmidt, Martin and Burger, Sven and Schmidt, Frank}, title = {Time-harmonic optical chirality in inhomogeneous space}, volume = {9756}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/1603.05011}, doi = {10.1117/12.2209551}, pages = {97560X}, year = {2016}, language = {en} } @article{HammerschmidtBarthPomplunetal.2016, author = {Hammerschmidt, Martin and Barth, Carlo and Pomplun, Jan and Burger, Sven and Becker, Christiane and Schmidt, Frank}, title = {Reconstruction of photonic crystal geometries using a reduced basis method for nonlinear outputs}, volume = {9756}, journal = {Proc. SPIE}, doi = {10.1117/12.2212482}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-58187}, pages = {97561R}, year = {2016}, abstract = {Maxwell solvers based on the hp-adaptive finite element method allow for accurate geometrical modeling and high numerical accuracy. These features are indispensable for the optimization of optical properties or reconstruction of parameters through inverse processes. High computational complexity prohibits the evaluation of the solution for many parameters. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem allowing to compute solutions for a parameter configuration orders of magnitude faster. The RBM allows to evaluate linear and nonlinear outputs of interest like Fourier transform or the enhancement of the electromagnetic field in milliseconds. We apply the RBM to compute light-scattering off two dimensional photonic crystal structures made of silicon and reconstruct geometrical parameters.}, language = {en} } @article{HammerschmidtHerrmannPomplunetal.2016, author = {Hammerschmidt, Martin and Herrmann, Sven and Pomplun, Jan and Burger, Sven and Schmidt, Frank}, title = {Model order reduction for the time-harmonic Maxwell equation applied to complex nanostructures}, volume = {9742}, journal = {Proc. SPIE}, doi = {10.1117/12.2212367}, pages = {97420M}, year = {2016}, abstract = {Fields such as optical metrology and computational lithography require fast and efficient methods for solving the time-harmonic Maxwell's equation. Highly accurate geometrical modelling and numerical accuracy at low computational costs are a prerequisite for any simulation study of complex nano-structured photonic devices. We present a reduced basis method (RBM) for the time-harmonic electromagnetic scattering problem based on the hp-adaptive finite element solver JCMsuite capable of handling geometric and non-geometric parameter dependencies allowing for online evaluations in milliseconds. We apply the RBM to compute light-scattering at optical wavelengths of periodic arrays of fin field-effect transistors (FinFETs) where geometrical properties such as the width and height of the fin and gate can vary in a large range.}, language = {en} } @article{HammerschmidtHerrmannPomplunetal.2016, author = {Hammerschmidt, Martin and Herrmann, Sven and Pomplun, Jan and Burger, Sven and Schmidt, Frank}, title = {Reduced basis method for electromagnetic scattering problem: a case study for FinFETs}, volume = {48}, journal = {Optical and Quantum Electronics}, doi = {10.1007/s11082-016-0530-1}, pages = {250}, year = {2016}, abstract = {Optical 3D simulations in many-query and real-time contexts require new solution strategies. We study an adaptive, error controlled reduced basis method for solving parametrized time-harmonic optical scattering problems. Application fields are, among others, design and optimization problems of nano-optical devices as well as inverse problems for parameter reconstructions occurring e. g. in optical metrology. The reduced basis method pre- sented here relies on a finite element modeling of the scattering problem with parametrization of materials, geometries and sources.}, language = {en} } @inproceedings{GregersendeLassonFrandsenetal.2017, author = {Gregersen, Niels and de Lasson, Jakob Rosenkrantz and Frandsen, Lars Hagedorn and Kim, Oleksiy S. and Breinbjerg, Olav and Wang, Fengwen and Sigmund, Ole and Ivinskaya, Aliaksandra and Lavrinenko, Andrei and Gutsche, Philipp and Burger, Sven and H{\"a}yrynen, Teppo and Merk, Jesper}, title = {Comparison of five numerical methods for computing quality factors and resonance wavelengths in photonic crystal membrane cavities}, booktitle = {CLEO/Europe-EQEC}, doi = {10.1109/CLEOE-EQEC.2017.8087750}, year = {2017}, language = {en} } @article{SchnauberSchallBounouaretal.2018, author = {Schnauber, Peter and Schall, Johannes and Bounouar, Samir and H{\"o}hne, Theresa and Park, Suk-In and Ryu, Geun-Hwan and Heindel, Tobias and Burger, Sven and Song, Jin-Dong and Rodt, Sven and Reitzenstein, Stephan}, title = {Deterministic integration of quantum dots into on-chip multi-mode interference beamsplitters using in-situ electron beam lithography}, volume = {18}, journal = {Nano Lett.}, arxiv = {http://arxiv.org/abs/1712.03837}, doi = {10.1021/acs.nanolett.7b05218}, pages = {2336}, year = {2018}, language = {en} } @article{JaegerKoeppelHammerschmidtetal.2018, author = {J{\"a}ger, Klaus and K{\"o}ppel, Grit and Hammerschmidt, Martin and Burger, Sven and Becker, Christiane}, title = {On accurate simulations of thin-film solar cells with a thick glass superstrate}, volume = {26}, journal = {Opt. Express}, doi = {10.1364/OE.26.000A99}, pages = {A99}, year = {2018}, language = {en} } @article{GarciaSantiagoHammerschmidtSachsetal.2022, author = {Garcia Santiago, Xavier and Hammerschmidt, Martin and Sachs, Johannes and Burger, Sven and Kwon, Hyunah and Kn{\"o}ller, Marvin and Arens, Tilo and Fischer, Peer and Fernandez-Corbaton, Ivan and Rockstuhl, Carsten}, title = {Toward maximally electromagnetically chiral scatterers at optical frequencies}, volume = {9}, journal = {ACS Photonics}, arxiv = {http://arxiv.org/abs/2112.04422}, doi = {10.1021/acsphotonics.1c01887}, pages = {1954}, year = {2022}, language = {en} } @article{ColomMikheevaAchourietal.2023, author = {Colom, Remi and Mikheeva, Elena and Achouri, Karim and Zuniga-Perez, Jesus and Bonod, Nicolas and Martin, Olivier J. F. and Burger, Sven and Genevet, Patrice}, title = {Crossing of the branch cut: the topological origin of a universal 2π-phase retardation in non-Hermitian metasurfaces}, volume = {17}, journal = {Laser Photonics Rev.}, arxiv = {http://arxiv.org/abs/2202.05632}, doi = {10.1002/lpor.202200976}, pages = {2200976}, year = {2023}, language = {en} } @article{GaoRickertUrbanetal.2022, author = {Gao, Timm and Rickert, Lucas and Urban, Felix and Große, Jan and Srocka, Nicole and Rodt, Sven and Musial, Anna and Zolnacz, Kinga and Mergo, Pawel and Dybka, Kamil and Urbanczyk, Waclaw and Sek, Grzegorz and Burger, Sven and Reitzenstein, Stephan and Heindel, Tobias}, title = {A quantum key distribution testbed using a plug\&play telecom-wavelength single-photon source}, volume = {9}, journal = {Appl. Phys. Rev.}, arxiv = {http://arxiv.org/abs/2105.03473}, doi = {10.1063/5.0070966}, pages = {011412}, year = {2022}, language = {en} } @article{TorunSchneiderHammerschmidtetal.2021, author = {Torun, Cem G{\"u}ney and Schneider, Philipp-Immanuel and Hammerschmidt, Martin and Burger, Sven and Munns, Joseph H.D. and Schr{\"o}der, Tim}, title = {Optimized diamond inverted nanocones for enhanced color center to fiber coupling}, volume = {118}, journal = {Appl. Phys. Lett.}, arxiv = {http://arxiv.org/abs/2105.13333}, doi = {10.1063/5.0050338}, pages = {234002}, year = {2021}, language = {en} } @article{MartensFunckSantiagoetal.2022, author = {Martens, Kevin and Funck, Timon and Santiago, Eva Y. and Govorov, Alexander O. and Burger, Sven and Liedl, Tim}, title = {Onset of Chirality in Plasmonic Meta-Molecules and Dielectric Coupling}, volume = {16}, journal = {ACS Nano}, arxiv = {http://arxiv.org/abs/2110.06689}, doi = {10.1021/acsnano.2c04729}, pages = {16143}, year = {2022}, language = {en} } @inproceedings{PerevoznikBoseBurgeretal.2021, author = {Perevoznik, Dmitrii and Bose, Surajit and Burger, Sven and Demircan, Ayhan and Morgner, Uwe}, title = {Photonic components in polymers made by femtosecond pulses}, booktitle = {Conference on Lasers and Electro-Optics Europe \& European Quantum Electronics Conference (CLEO/Europe-EQEC)}, doi = {10.1109/CLEO/Europe-EQEC52157.2021.9541906}, pages = {1}, year = {2021}, language = {en} } @inproceedings{RickertGaoUrbanetal.2021, author = {Rickert, Lucas and Gao, Timm and Urban, Felix and Große, Jan and Srocka, Nicole and Rodt, Sven and Musial, Anna and Zolnacz, Kinga and Mergo, Pawel and Dybka, Kamil and Urbanczyk, Waclaw and Sek, Grzegorz and Burger, Sven and Reitzenstein, Stephan and Tobias, Heindel}, title = {A Quantum Key Distribution Testbed Using Plug\&Play Telecom-Wavelength Single-Photons}, booktitle = {Quantum Information and Measurement VI}, doi = {10.1364/QIM.2021.M2C.1}, pages = {M2C.1}, year = {2021}, language = {en} } @inproceedings{SchneiderGarciaSantiagoWiegandetal.2021, author = {Schneider, Philipp-Immanuel and Garcia-Santiago, Xavier and Wiegand, Benjamin and Anton, Oliver and Krutzik, Markus and Rockstuhl, Carsten and Burger, Sven}, title = {Advances in Bayesian optimization for photonics and quantum atom optics applications}, booktitle = {OSA Advanced Photonics Congress}, doi = {10.1364/IPRSN.2021.JTh1E.2}, pages = {JTh1E.2}, year = {2021}, language = {en} } @article{ColomBinkowskiBetzetal.2022, author = {Colom, Remi and Binkowski, Felix and Betz, Fridtjof and Kivshar, Yuri and Burger, Sven}, title = {Enhanced Purcell factor for nanoantennas supporting interfering resonances}, volume = {4}, journal = {Phys. Rev. Research}, arxiv = {http://arxiv.org/abs/2111.03339}, doi = {10.1103/PhysRevResearch.4.023189}, pages = {023189}, year = {2022}, language = {en} } @inproceedings{MusialZolnaczSrockaetal.2020, author = {Musial, Anna and Zolnacz, Kinga and Srocka, Nicole and Kravets, Oleh and Große, Jan and Schneider, Philipp-Immanuel and Olszewski, Jacek and Poturaj, Krzystof and Wojcik, Grzegorz and Mergo, Pawel and Dybka, Kamil and Dyrkacz, Mariusz and Dlubek, Michal and Rodt, Sven and Burger, Sven and Zschiedrich, Lin and Urbanczyk, Waclaw and Sek, Grzegorz and Reitzenstein, Stephan}, title = {Stand-alone quantum dot-based single-photon source operating at telecommunication wavelengths}, booktitle = {10th International Conference on Spontaneous Coherence in Excitonic Systems ICSCE10}, pages = {39}, year = {2020}, language = {en} } @inproceedings{BoppPlockTuranetal.2023, author = {Bopp, Julian M. and Plock, Matthias and Turan, Tim and Pieplow, Gregor and Burger, Sven and Schr{\"o}der, Tim}, title = {'Sawfish' Spin-Photon Interface for Near-Unity Emitter-to-Waveguide Coupling}, booktitle = {Conference on Lasers and Electro-Optics (CLEO)}, doi = {10.1364/CLEO_SI.2023.SF1O.6}, pages = {SF1O.6}, year = {2023}, language = {en} } @inproceedings{HammerschmidtZschiedrichSiaudinyteetal.2023, author = {Hammerschmidt, Martin and Zschiedrich, Lin and Siaudinyt{\´e}, Lauryna and Manley, Phillip and Schneider, Philipp-Immanuel and Burger, Sven}, title = {Forward simulation of coherent beams on grating structures for coherent scatterometry}, volume = {PC12619}, booktitle = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/2309.06109}, doi = {10.1117/12.2673231}, pages = {PC1261907}, year = {2023}, language = {en} } @inproceedings{PlockBurgerSchneider2023, author = {Plock, Matthias and Burger, Sven and Schneider, Philipp-Immanuel}, title = {Efficient reconstruction of model parameters using Bayesian target-vector optimization}, volume = {PC12619}, booktitle = {Proc. SPIE}, doi = {10.1117/12.2673590}, pages = {PC1261905}, year = {2023}, language = {en} } @article{AntonHendersonDaRosetal.2024, author = {Anton, Oliver and Henderson, Victoria A. and Da Ros, Elisa and Sekulic, Ivan and Burger, Sven and Schneider, Philipp-Immanuel and Krutzik, Markus}, title = {Review and experimental benchmarking of machine learning algorithms for efficient optimization of cold atom experiments}, volume = {5}, journal = {Mach. Learn. Sci. Technol.}, arxiv = {http://arxiv.org/abs/2312.13397}, doi = {10.1088/2632-2153/ad3cb6}, pages = {025022}, year = {2024}, language = {en} } @misc{ColomMikheevaAchourietal.2023, author = {Colom, R{\´e}mi and Mikheeva, Elena and Achouri, Karim and Zuniga-Perez, Jesus and Bonod, Nicolas and Martin, Olivier J.F. and Burger, Sven and Genevet, Patrice}, title = {Crossing of the Branch Cut: The Topological Origin of a Universal 2π-Phase Retardation in Non-Hermitian Metasurfaces (Laser Photonics Rev. 17(6)/2023)}, volume = {17}, journal = {Laser Photonics Rev.}, doi = {10.1002/lpor.202370029}, pages = {2370029}, year = {2023}, language = {en} } @article{SekulicSchaibleMuelleretal.2025, author = {Sekulic, Ivan and Schaible, Jonas and M{\"u}ller, Gabriel and Plock, Matthias and Burger, Sven and Mart{\´i}nez-Lahuerta, V{\´i}ctor Jos{\´e} and Gaaloul, Naceur and Schneider, Philipp-Immanuel}, title = {Physics-informed Bayesian optimization of expensive-to-evaluate black-box functions}, volume = {6}, journal = {Mach. Learn. Sci. Technol.}, publisher = {IOP Publishing}, doi = {10.1088/2632-2153/ae1f5f}, pages = {040503}, year = {2025}, abstract = {Abstract Bayesian optimization with Gaussian process surrogates is a popular approach for optimizing expensive-to-evaluate functions in terms of time, energy, or computational resources. Typically, a Gaussian process models a scalar objective derived from observed data. However, in many real-world applications, the objective is a combination of multiple outputs from physical experiments or simulations. Converting these multidimensional observations into a single scalar can lead to information loss, slowing convergence and yielding suboptimal results. To address this, we propose to use multi-output Gaussian processes to learn the full vector of observations directly, before mapping them to the scalar objective via an inexpensive analytical function. This physics-informed approach retains more information from the underlying physical processes, improving surrogate model accuracy. As a result, the approach accelerates optimization and produces better final designs compared to standard implementations.}, language = {en} } @inproceedings{ZschiedrichBetzBinkowskietal.2025, author = {Zschiedrich, Lin and Betz, Fridtjof and Binkowski, Felix and Kuen, Lilli and Hammerschmidt, Martin and Burger, Sven}, title = {Efficient Photonic Component Analysis via AAA Rational Approximation}, booktitle = {2025 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)}, doi = {10.1109/NUSOD64393.2025.11199710}, pages = {115 -- 116}, year = {2025}, language = {en} } @misc{SekulicSchaibleMuelleretal.2025, author = {Sekulic, Ivan and Schaible, Jonas and M{\"u}ller, Gabriel and Plock, Matthias and Burger, Sven and Martinez-Lahuerta, Victor J. and Gaaloul, Naceur and Schneider, Philipp-Immanuel}, title = {Data publication for Physics-informed Bayesian optimization of expensive-to-evaluate black-box functions}, journal = {Zenodo}, doi = {10.5281/zenodo.16751507}, year = {2025}, language = {en} } @misc{BetzBinkowskiFischbachetal.2025, author = {Betz, Fridtjof and Binkowski, Felix and Fischbach, Jan David and Feldman, Nick and Zschiedrich, Lin and Rockstuhl, Carsten and Koenderink, A. Femius and Burger, Sven}, title = {Uncovering Hidden Resonances in Non-Hermitian Systems with Scattering Thresholds (Laser Photonics Rev. 19(21)/2025)}, volume = {19}, journal = {Laser Photonics Rev.}, number = {21}, doi = {10.1002/lpor.70534}, pages = {e70534}, year = {2025}, language = {en} } @article{AbouHamdanJanaColometal.2026, author = {Abou Hamdan, Loubnan and Jana, Aloke and Colom, R{\´e}mi and Aboujoussef, Nour and Carlson, Cooper and Overvig, Adam and Binkowski, Felix and Burger, Sven and Genevet, Patrice}, title = {A Complex-Frequency Framework for Kerker Unidirectionality in Photonic Resonators}, doi = {10.21203/rs.3.rs-8444305/v1}, year = {2026}, language = {en} } @misc{SekulicSchneiderHammerschmidtetal.2024, author = {Sekulic, Ivan and Schneider, Philipp-Immanuel and Hammerschmidt, Martin and Burger, Sven}, title = {Machine-learning driven design of metasurfaces: learn the physics and not the objective function}, volume = {PC13017}, journal = {Proc. SPIE}, doi = {10.1117/12.3022119}, pages = {PC130170X}, year = {2024}, language = {en} } @misc{BoppPlockTuranetal.2024, author = {Bopp, Julian M. and Plock, Matthias and Turan, Tim and Pieplow, Gregor and Burger, Sven and Schr{\"o}der, Tim}, title = {'Sawfish' Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications (Advanced Optical Materials 13/2024)}, volume = {12}, journal = {Adv. Optical Mater.}, doi = {10.1002/adom.202470046}, pages = {2470046}, year = {2024}, language = {en} } @article{ManleyHammerschmidtZschiedrichetal.2024, author = {Manley, Phillip and Hammerschmidt, Martin and Zschiedrich, Lin and J{\"a}ger, Klaus and Becker, Christiane and Burger, Sven}, title = {Modelling luminescent coupling in multi-junction solar cells: perovskite silicon tandem case study}, volume = {13014}, journal = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/2409.15987}, doi = {10.1117/12.3023941}, pages = {1301404}, year = {2024}, language = {en} } @inproceedings{SchaibleYooWinartoetal.2024, author = {Schaible, Jonas and Yoo, Danbi and Winarto, Hanifa and Miaskiewicz, Alexandra and Albrecht, Steve and Wessels, Andreas and Bl{\"a}si, Benedikt and Burger, Sven and Jaeger, Klaus and Becker, Christiane}, title = {On aesthetical appearance of colored perovskite solar modules}, volume = {PC13014}, booktitle = {Proc. SPIE}, publisher = {SPIE}, doi = {10.1117/12.3017427}, pages = {PC1301406}, year = {2024}, language = {en} } @inproceedings{BeckerBlaesiBurgeretal.2024, author = {Becker, Christiane and Bl{\"a}si, Benedikt and Burger, Sven and Ehrler, Bruno and Gordon, Ivan and Isabella, Olindo and J{\"a}ger, Klaus and Jost, Marko and Manley, Phillip and Mu{\~n}oz, Delfina and Paetzold, Ulrich W. and Sai, Hitoshi and Yablonovitch, Eli}, title = {Optical challenges for terawatt-scale photovoltaics}, volume = {PC13014}, booktitle = {Proc. SPIE}, publisher = {SPIE}, doi = {10.1117/12.3016415}, pages = {PC1301401}, year = {2024}, language = {en} } @misc{KuenLoefflerTsarapkinetal.2024, author = {Kuen, Lilli and L{\"o}ffler, Lorenz and Tsarapkin, Aleksei and Zschiedrich, Lin and Feichtner, Thorsten and Burger, Sven and H{\"o}flich, Katja}, title = {Source Code and Simulation Results: Chiral and directional optical emission from a dipole source coupled to a helical plasmonic antenna}, journal = {Zenodo}, doi = {10.5281/zenodo.10598255}, pages = {doi: 10.5281/zenodo.10598255}, year = {2024}, language = {en} } @article{MuellerMartinezLahuertaSekulicetal.2025, author = {M{\"u}ller, Gabriel and Mart{\´i}nez-Lahuerta, Victor J. and Sekulic, Ivan and Burger, Sven and Schneider, Philipp-Immanuel and Gaaloul, Naceur}, title = {Bayesian optimization for state engineering of quantum gases}, volume = {10}, journal = {Quantum Sci. Technol.}, arxiv = {http://arxiv.org/abs/2404.18234}, doi = {10.1088/2058-9565/ad9050}, pages = {015033}, year = {2025}, language = {en} } @article{SchaibleWinartoŠkorjancetal.2025, author = {Schaible, Jonas and Winarto, Hanifah and Škorjanc, Viktor and Yoo, Danbi and Zimmermann, Lea and J{\"a}ger, Klaus and Sekulic, Ivan and Schneider, Philipp-Immanuel and Burger, Sven and Wessels, Andreas and Bl{\"a}si, Benedikt and Becker, Christiane}, title = {Optimizing Aesthetic Appearance of Perovskite Solar Cells Using Color Filters}, volume = {9}, journal = {Solar RRL}, publisher = {Wiley}, doi = {10.1002/solr.202400627}, pages = {2400627}, year = {2025}, abstract = {The significance of color aesthetics in photovoltaic (PV) modules gains importance, especially in design-centric applications like building-integrated PVs. Color filters based on distributed Bragg reflectors, consisting of alternating thin-film layers of different refractive indices, can modify the appearance of standard silicon modules. This approach is also extended to optimize the color appearance of emerging PV technologies such as perovskite solar cells, which typically exhibit a less appealing gray-brownish appearance. In this contribution, perovskite solar-cell stacks combined with MorphoColor color filters are presented. Angular-resolved reflectance simulations based on wave optics and ray tracing with experimental data are validated, and the color appearance from various viewing angles is evaluated. Additionally, the impact of individual layers on color appearance and the maximum achievable short-circuit current density in the perovskite solar cell is investigated. By applying Bayesian optimization, the color distance is minimized to the targeted appearance. Tailoring the bridging layers between the color filter and the perovskite solar cell is found to strongly influence the color impression due to the coherently combined color filter and perovskite solar cell. The presented color optimization concept allows to customize the aesthetics of emerging PV thin-film technologies such as perovskite solar cells.}, language = {en} } @misc{RocheBetzYangetal.2024, author = {Roche, L{\´e}o J. and Betz, Fridtjof and Yang, Yuhui and Limame, Imad and Shih, Ching-Wen and Burger, Sven and Reitzenstein, Stephan}, title = {Inside Front Cover: Numerical Investigation of a Coupled Micropillar - Waveguide System for Integrated Quantum Photonic Circuits (Adv. Quantum Technol. 12/2024)}, volume = {7}, journal = {Adv. Quantum Technol.}, doi = {10.1002/qute.202470036}, pages = {2470036}, year = {2024}, language = {en} } @inproceedings{MukherjeeBurgerSiefkeetal.2024, author = {Mukherjee, Deshabrato and Burger, Sven and Siefke, Thomas and Gour, Jeetendra and Bodermann, Bernd and Petrik, Peter}, title = {Modeling of dimensions and sensing properties of gold gratings by spectroscopic ellipsometry and finite element method}, volume = {309}, booktitle = {EPJ Web of Conferences}, doi = {10.1051/epjconf/202430902016}, pages = {02016}, year = {2024}, language = {en} } @misc{BetzHammerschmidtZschiedrichetal.2024, author = {Betz, Fridtjof and Hammerschmidt, Martin and Zschiedrich, Lin and Burger, Sven and Binkowski, Felix}, title = {Efficient Rational Approximation of Optical Response Functions with the AAA Algorithm (Laser Photonics Rev. 18(11)/2024)}, volume = {18}, journal = {Laser Photonics Rev.}, doi = {10.1002/lpor.202470071}, pages = {2470071}, year = {2024}, language = {en} } @article{FischbachBetzAsadovaetal.2025, author = {Fischbach, Jan David and Betz, Fridtjof and Asadova, Nigar and Tassan, Pietro and Urbonas, Darius and St{\"o}ferle, Thilo and Mahrt, Rainer F. and Burger, Sven and Rockstuhl, Carsten and Binkowski, Felix and Sturges, Thomas Jebb}, title = {A framework to compute resonances arising from multiple scattering}, volume = {8}, journal = {Adv. Theory Simul.}, arxiv = {http://arxiv.org/abs/2409.05563}, doi = {10.1002/adts.202400989}, pages = {2400989}, year = {2025}, language = {en} } @inproceedings{BinkowskiBetzHammerschmidtetal.2024, author = {Binkowski, Felix and Betz, Fridtjof and Hammerschmidt, Martin and Zschiedrich, Lin and Burger, Sven}, title = {Poles and Zeros in Resonant Nano-Photonic Systems}, booktitle = {2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)}, doi = {10.1109/CLEO-PR60912.2024.10676837}, year = {2024}, language = {en} } @inproceedings{JaegerBurgerAeberhardetal.2024, author = {J{\"a}ger, Klaus and Burger, Sven and Aeberhard, Urs and Llado, Esther Alarcon and Bl{\"a}si, Benedikt and Ehrler, Bruno and Favre, Wilfried and Fejfar, Anton{\´i}n and Gageot, Tristan and Gordon, Ivan and Helmers, Henning and H{\"o}hn, Oliver and Isabella, Olindo and Jošt, Marko and Ledinsk{\´y}, Martin and Mandal, Jyotirmoy and Manley, Phillip and Munoz, Delfina and Lizcano, Juan Camilo Ortiz and Paetzold, Ulrich W. and Raman, Aaswath P. and Sai, Hitoshi and Saive, Rebecca and Schmid, Martina and Yablonovitch, Eli and Becker, Christiane}, title = {A Roadmap on Optics for Terawatt Scale Photovoltaics}, booktitle = {Advanced Photonics Congress 2024}, publisher = {Optica Publishing Group}, doi = {10.1364/SELED.2024.STu2G.5}, pages = {STu2G.5}, year = {2024}, language = {en} } @article{AsadovaAchouriArjasetal.2025, author = {Asadova, Nigar and Achouri, Karim and Arjas, Kristian and Ajugui{\´e}, Baptiste and Aydin, Roland and Baron, Alexandre and Beutel, Dominik and Bodermann, Bernd and Boussaoud, Kaoutar and Burger, Sven and Choi, Minseok and Czajkowski, Krzysztof and Evlyukhin, Andrey B. and Fazel-Najafabadi, Atefeh and Fernandez-Corbaton, Ivan and Garg, Puneet and Globosits, David and Hohenester, Ulrich and Kim, Hongyoon and Kim, Seokwoo and Lalanne, Philippe and Le Ru, Eric C. and Meyer, J{\"o}rg and Mun, Jungho and Patelli, Lorenzo and Pflug, Lukas and Rockstuhl, Carsten and Rho, Junsuk and Rotter, Stefan and Stout, Brian and T{\"o}rm{\"a}, P{\"a}ivi and Trigo, Jorge Olmos and Tristram, Frank and Tsitsas, Nikolaos L. and Vall{\´e}e, Renaud and Vynck, Kevin and Weiss, Thomas and Wiecha, Peter and Wriedt, Thomas and Yannopapas, Vassilios and Yurkin, Maxim A. and Zouros, Grigorios P.}, title = {T-matrix representation of optical scattering response: Suggestion for a data format}, volume = {333}, journal = {J. Quant. Spectrosc. Radiat. Transf.}, arxiv = {http://arxiv.org/abs/2408.10727}, doi = {10.1016/j.jqsrt.2024.109310}, pages = {109310}, year = {2025}, language = {en} } @article{RocheBetzYangetal.2024, author = {Roche, L{\´e}o J. and Betz, Fridtjof and Yang, Yuhui and Limame, Imad and Shih, Ching-Wen and Burger, Sven and Reitzenstein, Stephan}, title = {Numerical Investigation of a Coupled Micropillar - Waveguide System for Integrated Quantum Photonic Circuits}, volume = {7}, journal = {Adv. Quantum Technol.}, doi = {10.1002/qute.202400195}, pages = {2400195}, year = {2024}, language = {en} } @article{BinkowskiBurgerKewes2024, author = {Binkowski, Felix and Burger, Sven and Kewes, G{\"u}nter}, title = {A tiny Drude scatterer can accurately model a coherent emitter in nanophotonics}, volume = {13}, journal = {Nanophotonics}, doi = {10.1515/nanoph-2024-0170}, pages = {4537}, year = {2024}, language = {en} } @misc{BinkowskiBetzHammerschmidtetal.2024, author = {Binkowski, Felix and Betz, Fridtjof and Hammerschmidt, Martin and Zschiedrich, Lin and Burger, Sven}, title = {Source code and simulation results: Resonance modes in microstructured photonic waveguides - Efficient and accurate computation based on AAA rational approximation}, journal = {Zenodo}, doi = {10.5281/zenodo.14202408}, pages = {doi: 10.5281/zenodo.14202408}, year = {2024}, language = {en} } @article{BetzBinkowskiFischbachetal.2025, author = {Betz, Fridtjof and Binkowski, Felix and Fischbach, Jan David and Feldman, Nick and Zschiedrich, Lin and Rockstuhl, Carsten and Koenderink, A. Femius and Burger, Sven}, title = {Uncovering hidden resonances in non-Hermitian systems with scattering thresholds}, volume = {19}, journal = {Laser Photonics Rev.}, arxiv = {http://arxiv.org/abs/2503.03549}, doi = {10.1002/lpor.202500811}, pages = {e00811}, year = {2025}, language = {en} } @misc{BetzBinkowskiFischbachetal.2025, author = {Betz, Fridtjof and Binkowski, Felix and Fischbach, Jan David and Feldman, Nick and Rockstuhl, Carsten and Koenderink, A. Femius and Burger, Sven}, title = {Source code and simulation results: Hidden resonances in non-Hermitian systems with scattering thresholds}, journal = {Zenodo}, doi = {10.5281/zenodo.14651612}, pages = {doi: 10.5281/zenodo.14651612}, year = {2025}, language = {en} } @article{MukherjeeBurgerSiefkeetal.2025, author = {Mukherjee, Deshabrato and Burger, Sven and Siefke, Thomas and Gour, Jeetendra and Bodermann, Bernd and Petrik, Peter}, title = {Spectroscopic Ellipsometry of Plasmonic Gratings─Ideal Parameters for Sensing and Subpicometer Measurement Uncertainty}, volume = {10}, journal = {ACS Omega}, number = {14}, doi = {10.1021/acsomega.5c00951}, pages = {14466 -- 14473}, year = {2025}, language = {en} } @article{BinkowskiBetzHammerschmidtetal.2025, author = {Binkowski, Felix and Betz, Fridtjof and Hammerschmidt, Martin and Zschiedrich, Lin and Burger, Sven}, title = {Resonance modes in microstructured photonic waveguides: Efficient and accurate computation based on AAA rational approximation}, volume = {14}, journal = {Nanophotonics}, arxiv = {http://arxiv.org/abs/2412.13826}, doi = {10.1515/nanoph-2024-0755}, pages = {1665}, year = {2025}, language = {en} } @inproceedings{SchaibleWinartoSkorjancetal.2025, author = {Schaible, Jonas and Winarto, Hanifah and Skorjanc, Victor and Yoo, Danbi and Zimmermann, Lea and Wessels, Andreas and J{\"a}ger, Klaus and Sekulic, Ivan and Schneider, Philipp-Immanuel and Bl{\"a}si, Benedikt and Burger, Sven and Becker, Christiane}, title = {Optimization strategies for colorful thin film solar cells}, volume = {PC13361}, booktitle = {Proc. SPIE}, doi = {10.1117/12.3041408}, pages = {PC133610E}, year = {2025}, language = {en} } @article{JaegerAeberhardAlarconLladoetal.2025, author = {J{\"a}ger, Klaus and Aeberhard, Urs and Alarcon Llado, Esther and Bl{\"a}si, Benedikt and Burger, Sven and Ehrler, Bruno and Favre, Wilfried and Fejfar, Anton{\´i}n and Gageot, Tristan and Gordon, Ivan and Helmers, Henning and H{\"o}hn, Oliver and Isabella, Olindo and Jošt, Marko and Ledinsk{\´y}, Martin and Mandal, Jyotirmoy and Manley, Phillip and Mu{\~n}oz, Delfina and Omair, Zunaid and Ortiz Lizcano, Juan Camilo and Paetzold, Ulrich W. and Raman, Aaswath P. and Sai, Hitoshi and Saive, Rebecca and Schmid, Martina and Yablonovitch, Eli and Becker, Christiane}, title = {Optics for terawatt-scale photovoltaics: review and perspectives}, volume = {17}, journal = {Adv. Opt. Photonics}, number = {1}, publisher = {Optica Publishing Group}, issn = {1943-8206}, doi = {10.1364/AOP.530556}, pages = {185 -- 294}, year = {2025}, abstract = {Photovoltaics, a mature technology, is set to play a vital role in achieving a carbon-free energy system. This article examines the pivotal role of optics in advancing photovoltaics. We identify key scientific research areas where the optics community can make significant contributions. We are guided by the central question: How can optics facilitate the large-scale deployment of photovoltaics necessary for decarbonizing our societies?}, language = {en} } @article{BetzBinkowskiHammerschmidtetal.2023, author = {Betz, Fridtjof and Binkowski, Felix and Hammerschmidt, Martin and Zschiedrich, Lin and Burger, Sven}, title = {Cover Picture: Resonance Expansion of Quadratic Quantities with Regularized Quasinormal Modes}, volume = {220}, journal = {Phys. Status Solidi A}, doi = {10.1002/pssa.202370013}, pages = {2370013}, year = {2023}, language = {en} } @inproceedings{KuenBetzBinkowskietal.2023, author = {Kuen, Lilli and Betz, Fridtjof and Binkowski, Felix and Schneider, Philipp-Immanuel and Hammerschmidt, Martin and Heermeier, Niels and Rodt, Sven and Reitzenstein, Stephan and Burger, Sven}, title = {Applying a Riesz-projection-based contour integral eigenvalue solver to compute resonance modes of a VCSEL}, volume = {12575}, booktitle = {Proc. SPIE}, arxiv = {http://arxiv.org/abs/2306.02926}, doi = {10.1117/12.2665490}, pages = {125750J}, year = {2023}, language = {en} } @article{MikheevaColomAchourietal.2023, author = {Mikheeva, Elena and Colom, R{\´e}mi and Achouri, Karim and Overvig, Adam and Binkowski, Felix and Duboz, Jean-Yves and Cueff, S{\´e}bastien and Fan, Shanhui and Burger, Sven and Al{\`u}, Andrea and Genevet, Patrice}, title = {Asymmetric phase modulation with light with parity-symmetry broken metasurfaces}, volume = {10}, journal = {Optica}, doi = {10.1364/OPTICA.495681}, pages = {1287}, year = {2023}, language = {en} } @misc{BinkowskiBetzColometal.2023, author = {Binkowski, Felix and Betz, Fridtjof and Colom, Remi and Genevet, Patrice and Burger, Sven}, title = {Source code and simulation results: Poles and zeros of electromagnetic quantities in photonic systems}, journal = {Zenodo}, doi = {10.5281/zenodo.8063931}, pages = {8063931}, year = {2023}, language = {en} } @article{BinkowskiBetzColometal.2024, author = {Binkowski, Felix and Betz, Fridtjof and Colom, Remi and Genevet, Patrice and Burger, Sven}, title = {Poles and zeros in non-Hermitian systems: Application to photonics}, volume = {109}, journal = {Phys. Rev. B}, arxiv = {http://arxiv.org/abs/2307.04654}, doi = {10.1103/PhysRevB.109.045414}, pages = {045414}, year = {2024}, language = {en} } @article{PlockHammerschmidtBurgeretal.2023, author = {Plock, Matthias and Hammerschmidt, Martin and Burger, Sven and Schneider, Philipp-Immanuel and Sch{\"u}tte, Christof}, title = {Impact Study of Numerical Discretization Accuracy on Parameter Reconstructions and Model Parameter Distributions}, volume = {60}, journal = {Metrologia}, arxiv = {http://arxiv.org/abs/2305.02663}, doi = {10.1088/1681-7575/ace4cd}, pages = {054001}, year = {2023}, abstract = {In optical nano metrology numerical models are used widely for parameter reconstructions. Using the Bayesian target vector optimization method we fit a finite element numerical model to a Grazing Incidence x-ray fluorescence data set in order to obtain the geometrical parameters of a nano structured line grating. Gaussian process, stochastic machine learning surrogate models, were trained during the reconstruction and afterwards sampled with a Markov chain Monte Carlo sampler to determine the distribution of the reconstructed model parameters. The numerical discretization parameters of the used finite element model impact the numerical discretization error of the forward model. We investigated the impact of the polynomial order of the finite element ansatz functions on the reconstructed parameters as well as on the model parameter distributions. We showed that such a convergence study allows to determine numerical parameters which allows for efficient and accurate reconstruction results.}, language = {en} }