@misc{KoernerSchwarzFischeretal., author = {K{\"o}rner, Roman and Schwarz, Daniel and Fischer, Inga Anita and Augel, Lion and Bechler, Stefan and H{\"a}nel, Linda A. and Kern, Michael and Oehme, Michael and Rolseth, Erlend Granbo and Schwartz, Bernhard and Weißhaupt, David and Zhang, Wogong and Schulze, J{\"o}rg}, title = {The Zener-Emitter: A Novel Superluminescent Ge Optical Waveguide-Amplifier with 4.7 dB Gain at 92 mA Based on Free-Carrier Modulation by Drect Zener Tunneling Monolithically Integrated on Si}, series = {2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016}, journal = {2016 IEEE International Electronic Devices Meeting (IEDM), 3-7 Dec. 2016}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {978-1-5090-3901-2}, pages = {22.5.1 -- 22.5.4}, language = {en} } @misc{FischerAugelBerkmannetal., author = {Fischer, Inga Anita and Augel, Lion and Berkmann, Fritz and Kawaguchi, Yuma and Schlipf, Jon and Schulze, J{\"o}rg}, title = {Plasmonics-Integrated Ge PIN-Photodetectors}, series = {ECS Transactions}, volume = {93}, journal = {ECS Transactions}, number = {1}, issn = {1938-5862}, doi = {10.1149/09301.0041ecst}, pages = {41 -- 44}, language = {en} } @misc{SchlykowManganelliRoemeretal., author = {Schlykow, Viktoria and Manganelli, Constanza Lucia and R{\"o}mer, Friedhard and Clausen, Caterina J. and Augel, Lion and Schulze, J{\"o}rg and Katzer, Jens and Schubert, Michael Andreas and Witzigmann, Bernd and Schroeder, Thomas and Capellini, Giovanni and Fischer, Inga Anita}, title = {Ge(Sn) nano-island/Si heterostructure photodetectors with plasmonic antennas}, series = {Nanotechnology}, volume = {31}, journal = {Nanotechnology}, number = {34}, issn = {1361-6528}, doi = {10.1088/1361-6528/ab91ef}, pages = {11}, language = {en} } @misc{AugelFischerGollhoferetal., author = {Augel, Lion and Fischer, Inga Anita and Gollhofer, Martin and Oehme, Michael and Schulze, J{\"o}rg}, title = {Comparing Fourier transform infrared spectroscopy results with photocurrent measurements for Ge-on-Si PIN photodetectors with and without Al nanoantennas}, series = {Journal of Applied Physics}, volume = {128}, journal = {Journal of Applied Physics}, number = {1}, issn = {1089-7550}, doi = {10.1063/5.0012279}, pages = {013105-1 -- 013105-8}, language = {en} } @misc{AugelSchlipfBullertetal., author = {Augel, Lion and Schlipf, Jon and Bullert, Sergej and B{\"u}rzele, Sebastian and Schulze, J{\"o}rg and Fischer, Inga Anita}, title = {Photonic-plasmonic mode coupling in nanopillar Ge-on-Si PIN photodiodes}, series = {Scientific Reports}, journal = {Scientific Reports}, number = {11}, issn = {2045-2322}, doi = {10.1038/s41598-021-85012-z}, pages = {9}, abstract = {Incorporating group IV photonic nanostructures within active top-illuminated photonic devices often requires light-transmissive contact schemes. In this context, plasmonic nanoapertures in metallic films can not only be realized using CMOS compatible metals and processes, they can also serve to influence the wavelength-dependent device responsivities. Here, we investigate crescent-shaped nanoapertures in close proximity to Ge-on-Si PIN nanopillar photodetectors both in simulation and experiment. In our geometries, the absorption within the devices is mainly shaped by the absorption characteristics of the vertical semiconductor nanopillar structures (leaky waveguide modes). The plasmonic resonances can be used to influence how incident light couples into the leaky modes within the nanopillars. Our results can serve as a starting point to selectively tune our device geometries for applications in spectroscopy or refractive index sensing.}, language = {en} } @misc{BerkmannAugelHacketal., author = {Berkmann, Fritz and Augel, Lion and Hack, Michael and Kawaguchi, Yuma and Weißhaupt, David and Fischer, Inga Anita and Schulze, J{\"o}rg}, title = {Optimization of fully integrated Al nanohole array-based refractive index sensors for use with a LED light source Fritz Berkmann}, series = {IEEE Photonics Journal}, volume = {14}, journal = {IEEE Photonics Journal}, number = {3}, issn = {1943-0655}, doi = {10.1109/JPHOT.2022.3177354}, pages = {1 -- 8}, language = {en} } @misc{AugelWenKnobbe, author = {Augel, Lion and Wen, Hanying and Knobbe, Jens}, title = {TiN-Si Schottky Diodes for SWIR Detection}, series = {Tagungsband MikroSystemTechnik Kongress 2023, Dresden, 23. - 25. Oktober 2023}, journal = {Tagungsband MikroSystemTechnik Kongress 2023, Dresden, 23. - 25. Oktober 2023}, publisher = {VDE Verlag}, address = {Berlin}, isbn = {978-3-8007-6204-0}, pages = {30 -- 34}, language = {en} } @misc{WenAugelWangetal., author = {Wen, Hanying and Augel, Lion and Wang, Wenjuan and Knobbe, Jens}, title = {Characterization of AlSiCu/TiN/p-Si Schottky Contacts with Nanophotonic Structures for Near-infrared Photodetectors}, series = {2023 46th International Spring Seminar on Electronics Technology (ISSE) : 10-14 May 2023 : conference location: Timișoara, Romania}, journal = {2023 46th International Spring Seminar on Electronics Technology (ISSE) : 10-14 May 2023 : conference location: Timișoara, Romania}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {979-8-3503-3485-2}, doi = {10.1109/ISSE57496.2023.10168510}, pages = {1 -- 5}, abstract = {Schottky photodetectors based on internal photoemission have the potential of an adjustable detection range in the near-infrared range and Si compatible technology integration. The external quantum efficiency of Schottky photodetectors can be improved using nanophotonic structures, which enhance the absorption of the device. However, the electrical properties of Schottky photodetectors deviate under an altered metal-semiconductor interface topography. We characterize a common layer system for metal contacts consisting of a TiN interstitial layer between the p-Si wafer and the AlSiCu metallization. By varying the thickness of the TiN we discuss how homogeneity of the sputtered layers influence device properties with different interface topographies. Through electrical wafer-level characterization, the characteristics of the Schottky contact are evaluated and compared to the ideal physical modelling.}, language = {en} } @misc{AugelKnobbe, author = {Augel, Lion and Knobbe, Jens}, title = {Vorrichtung und Verfahren zur Absorption von elektromagnetischer Strahlung, System zur Verwendung in einem Bildsensor, sowie Verfahren zur Herstellung einer Vorrichtung zur Absorption von elektromagnetischer Strahlung}, language = {de} } @misc{AugelKnobbe, author = {Augel, Lion and Knobbe, Jens}, title = {Vorrichtung, Verfahren und System zur Absorption von elektromagnetischer Strahlung, sowie Verfahren zur Herstellung einer Vorrichtung zur Absorption von elektromagnetischer Strahlung}, language = {de} } @misc{AugelWenKnobbe, author = {Augel, Lion and Wen, Hanying and Knobbe, Jens}, title = {CMOS-compatible Si-TiN Schottky SWIR photodetectors enhanced by pyramidal nanostructures}, series = {International Conference on Optical MEMS and Nanophotonics (OMN) 2023, S{\~a}o Paulo, Brazil, July 30th - August 3rd, 2023}, journal = {International Conference on Optical MEMS and Nanophotonics (OMN) 2023, S{\~a}o Paulo, Brazil, July 30th - August 3rd, 2023}, doi = {10.24406/publica-2555}, pages = {2}, abstract = {Short-wavelength infrared detection has shown an enormous potential for future application in autonomous systems and security. Up to today the use has been limited by the cost for high quality detectors. Using TiN Schottky barrier photodetectors with pyramidal photonic nanostructures opens a path to circumvent the typically low quantum efficiencies with compatibility to CMOS technology.}, language = {en} } @misc{JabłońskiGruegerAugeletal., author = {Jabłoński, Ireneusz and Gr{\"u}ger, Heinrich and Augel, Lion and Knobbe, Jens}, title = {Artificial intelligence for the calibration of mobile spectral analyzers}, series = {Energieautonome Sensorsysteme 2024, 12. GMM-Fachtagung, 19. - 20. M{\"a}rz 2024, Freiburg}, volume = {2024}, journal = {Energieautonome Sensorsysteme 2024, 12. GMM-Fachtagung, 19. - 20. M{\"a}rz 2024, Freiburg}, isbn = {978-3-8007-6298-9}, pages = {70 -- 72}, abstract = {Mobile spectral analysis has gathered a lot of interest throughout the last years. It enables the determination of object composition, material properties or other application relevant information directly on-site. This could be very interesting in agriculture, food business, environmental monitoring, medical or other fields. Autonomous operated systems could be handheld or mounted to robots as well as unmanned aerial vehicles (UAVs). The components have become compact and affordable so far. The evaluation of spectral data, for example in the near infrared range, requires stable calibration to extract the relevant information to extract concentration or composition information. Complex chemometric models and broad data bases are necessary. These are valid for selected devices only, transfer to other equipment is difficult. Furthermore, changes like aging of the light source must be calibrated from time to time. In close future artificial intelligence (AI) will help to change this situation by providing automated calibration and compensation routines.}, language = {en} } @misc{AugelKnobbeShala, author = {Augel, Lion and Knobbe, Jens and Shala, Leonor}, title = {Influence of composition on sputtered multi-layer cavity enhanced Schottky SWIR photodetectors}, series = {MikroSystemTechnik Kongress 2025 : Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Nachhaltigkeit und Technologiesouver{\"a}nit{\"a}t : proceedings : 27.-29. Oktober 2025, Duisburg}, journal = {MikroSystemTechnik Kongress 2025 : Mikroelektronik, Mikrosystemtechnik und ihre Anwendungen - Nachhaltigkeit und Technologiesouver{\"a}nit{\"a}t : proceedings : 27.-29. Oktober 2025, Duisburg}, publisher = {VDE VERLAG GmbH}, address = {Berlin}, isbn = {978-3-8007-6614-7}, pages = {335ff.}, language = {en} }