TY - CHAP A1 - Wagner, J. A1 - Ostendorf, Ralf A1 - Grahmann, Jan A1 - Merten, A. A1 - Hugger, S. A1 - Jarvis, J.-P. A1 - Fuchs, F. A1 - Boscovic, D. A1 - Schenk, Harald ED - Razeghi, Manijeh T1 - Widely tunable quantum cascade lasers for spectroscopic sensing T2 - Quantum sensing and nanophotonic devices XII, 8 - 12 February 2015, San Francisco, California, United States Y1 - 2015 SN - 978-1-62841-460-8 SP - 937012-1 EP - 937012-6 PB - SPIE CY - Bellingham, Wash. ER - TY - GEN A1 - Lehnen, Nadine A1 - Heuser, Fabian A1 - Sağlam, Murat A1 - Schulz, Christian M. A1 - Wagner, Klaus J. A1 - Taki, Masakatsu A1 - Kochs, Eberhard F. A1 - Jahn, Klaus A1 - Schneider, Erich T1 - Opioid-induced nausea involves a vestibular problem preventable by head-rest T2 - PLoS one Y1 - 2015 U6 - https://doi.org/10.1371/journal.pone.0135263 SN - 1932-6203 VL - 10 IS - 8 SP - e0135263 ER - TY - GEN A1 - Heuser, Fabian A1 - Schulz, Christian A1 - Sağlam, Murat A1 - Ramaioli, Cecilia A1 - Heuberger, Maria A1 - Wagner, Klaus J. A1 - Jahn, Klaus A1 - Schneider, Erich A1 - Brandt, Thomas A1 - Glasauer, Stefan A1 - Lehnen, Nadine T1 - Preventing opioid-induced nausea and vomiting: Rest your head and close your eyes? T2 - PloS one Y1 - 2017 U6 - https://doi.org/10.1371/journal.pone.0173925 SN - 1932-6203 VL - 12 IS - 3 SP - e0173925 ER - TY - RPRT A1 - Müller, Jörg A1 - Dieter, M. A1 - Bauhus, J. A1 - Spellmann, H. A1 - Möhring, B. A1 - Wagner, S. A1 - Wolf, Heino A1 - Niekisch, M. A1 - Weiger, H. A1 - Feindt, Peter H. A1 - Hamm, Ulrich A1 - Wätzold, Frank A1 - Wolters, Volkmar A1 - Engels, Eve-Marie A1 - Schraml, U. A1 - Lang, F. A1 - Pröbstl-Haider, U. A1 - Richter, K. T1 - Wege zu einem effizienten Waldnaturschutz in Deutschland. Stellungnahme Y1 - 2020 UR - http://www.fnr.de/fileadmin/allgemein/pdf/Effizienter_Waldnaturschutz_in_Deutschland.pdf PB - Wissenschaftlicher Beirat Waldpolitik und Wissenschaftlicher Beirat Biodiversität und Genetische Ressourcen beim BMEL ER - TY - GEN A1 - Steuer, O. A1 - Liedke, Maciej O. A1 - Butterling, M. A1 - Schwarz, D. A1 - Schulze, J. A1 - Li, Z. A1 - Wagner, A. A1 - Fischer, Inga Anita A1 - Hübner, R. A1 - Zhou, S. T1 - Evolution of point defects in pulsed-laser-melted Ge1-xSnx probed by positron annihilation lifetime spectroscopy T2 - Journal of Physics: Condensed Matter N2 - Direct-band-gap Germanium-Tin alloys (Ge1-xSnx) with high carrier mobilities are promising materials for nano- and optoelectronics. The concentration of open volume defects in the alloy, such as Sn and Ge vacancies, influences the final device performance. In this article, we present an evaluation of the point defects in molecular-beam-epitaxy grown Ge1-xSnx films treated by post-growth nanosecond-range pulsed laser melting (PLM). Doppler broadening – variable energy positron annihilation spectroscopy and variable energy positron annihilation lifetime spectroscopy are used to investigate the defect nanostructure in the Ge1-xSnx films exposed to increasing laser energy density. The experimental results, supported with ATomic SUPerposition calculations, evidence that after PLM, the average size of the open volume defects increases, which represents a raise in concentration of vacancy agglomerations, but the overall defect density is reduced as a function of the PLM fluence. At the same time, the positron annihilation spectroscopy analysis provides information about dislocations and Ge vacancies decorated by Sn atoms. Moreover, it is shown that the PLM reduces the strain in the layer, while dislocations are responsible for trapping of Sn and formation of small Sn-rich-clusters. KW - GeSn KW - laser annealing KW - positron annihilation KW - PLM KW - point defects Y1 - 2023 UR - https://iopscience.iop.org/article/10.1088/1361-648X/ad0a10/meta U6 - https://doi.org/10.1088/1361-648X/ad0a10 SN - 0953-8984 VL - 36 IS - 8 SP - 1 EP - 11 ER - TY - CHAP A1 - Bleh, D. A1 - Ostendorf, Ralf A1 - Merten, A. A1 - Grahmann, Jan A1 - Schenk, Harald A1 - Kunzer, M. A1 - Schmidt, R. A1 - Wagner, J. T1 - Miniaturization of a fast tunable external cavity QCL with customized gratings and MOEMS components T2 - International Quantum Cascade Lasers School & Workshop (IQCLSW), Policoro, Italy Y1 - 2014 UR - http://www.iqclsw2014.cnr.it/wp-content/uploads/2014/03/Bleh-IQCLSW2014.pdf?0f100a SP - 1 EP - 2 ER -