Zobrazeno 1 - 10
of 98
pro vyhledávání: '"M. Austerer"'
Autor:
M. Austerer
Publikováno v:
ELIV 2017
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a415a9ee1a308ea57acd698b103cfe5c
https://doi.org/10.51202/9783181022993-73
https://doi.org/10.51202/9783181022993-73
Autor:
Hermann Detz, Aaron Maxwell Andrews, M. Austerer, Pavel Klang, Gottfried Strasser, S. Schartner, Werner Schrenk
Publikováno v:
Journal of Modern Optics. 55:3211-3217
In this paper we present two-color GaAs/AlGaAs quantum cascade lasers with separate optical confinement of the two laser stacks. The laser stacks, each comprising cladding layers and an active region, are grown on top of each other by molecular beam
Autor:
M. Austerer, S. Schartner, Gottfried Strasser, S. Golka, Aaron Maxwell Andrews, W. Schrenk, Erich Gornik
Publikováno v:
physica status solidi (b). 244:2916-2925
A GaAs/AlGaAs quantum well infrared photodetector was combined with a deeply etched three-fold PhC structure. This makes the detector sensitive to mid-infrared radiation incident via the sample surface. The geometrically tunable peak responsivity is
Autor:
Werner Schrenk, Aaron Maxwell Andrews, C. Pflügl, M. Austerer, Tomas Roch, Gottfried Strasser, S. Schartner
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 35:234-240
We report second-harmonic (SH) and sum-frequency generation in GaAs-based quantum-cascade lasers. A doping dependence study of the second-order susceptibility in one of the investigated structure is shown. We also demonstrate that grating-coupled sur
Autor:
Aaron Maxwell Andrews, S. Golka, Gottfried Strasser, C. Pflügl, Tomas Roch, Werner Schrenk, M. Austerer
Publikováno v:
Applied Physics B. 85:231-234
We present efficient second-harmonic generation in state of the art GaAs-based quantum-cascade lasers with nonlinear output powers up to 100 μW. The nonlinear output was significantly improved by applying an AlGaAs waveguide structure, which guides
Autor:
Aaron Maxwell Andrews, Gottfried Strasser, M. Austerer, Tomas Roch, Matthias Schramboeck, Werner Schrenk
Publikováno v:
Microelectronic Engineering. 83:1573-1576
GaAs substrates were patterned using holographic lithography and wet chemical etching. InAs quantum dots (QDs) grown on these substrates showed an alignment and an improved homogeneity compared to QDs grown on unpatterned GaAs. This was confirmed by
Autor:
Werner Schrenk, Tomas Roch, S. Golka, C. Pflügl, Gottfried Strasser, M. Austerer, Aaron Maxwell Andrews
Publikováno v:
Journal of Modern Optics. 52:2303-2308
Electrically pumped GaAs/AlGaAs quantum cascade rib lasers with a wavelength of 9.7 µm utilizing deep etched photonic band gap mirrors are discussed. The smallest operating device was 150 µm long and 8 µm wide. Further, a description of the fabric
Publikováno v:
physica status solidi (a). 202:977-979
We present high power mid-infrared surface-emitting single mode GaAs-based quantum cascade lasers (QCLs). By using an air-AlGaAs waveguide combined with second-order distributed feedback processing, we obtained optical output, via the surface, above
Autor:
John W. Cockburn, J.S. Roberts, Gottfried Strasser, Karl Unterrainer, Andrey B. Krysa, Thomas Müller, W. Parz, Luke R. Wilson, M. Austerer, J. Darmo
Publikováno v:
2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM).
Autor:
B. Basnar, S. Schartner, M. Austerer, A. M. Andrews, T. Roch, W. Schrenk, P. L. de Souza, M. P. Pires, G. Strasser, Marília Caldas, Nelson Studart
Publikováno v:
AIP Conference Proceedings.
A novel approach for the tuning of quantum cascade lasers is presented. The system is based on an organic polymer which undergoes spectral changes as a function of the atmospheric pH. Deposition of the polymer on the air‐waveguide of an InGaAs/InAl