Zobrazeno 1 - 10
of 271
pro vyhledávání: '"Unterrainer Karl"'
Autor:
Rösch Markus, Beck Mattias, Süess Martin J., Bachmann Dominic, Unterrainer Karl, Faist Jérôme, Scalari Giacomo
Publikováno v:
Nanophotonics, Vol 7, Iss 1, Pp 237-242 (2018)
We report on a heterogeneous active region design for terahertz quantum cascade laser based frequency combs. Dynamic range, spectral bandwidth and output power have been significantly improved with respect to previous designs. When individually opera
Externí odkaz:
https://doaj.org/article/263fe62aa8e44ae6bcc7f23327246159
Autor:
Roch Tomas, Andrews Aaron, Fasching Gernot, Benz Alexander, Schrenk Werner, Unterrainer Karl, Strasser Gottfried
Publikováno v:
Open Physics, Vol 5, Iss 2, Pp 244-251 (2007)
Externí odkaz:
https://doaj.org/article/a3c2bd6758694789ac9b494ebcaa5c75
We demonstrate a terahertz (THz) frequency comb that is flexible in terms of its frequency range and the number and spacing of comb lines. We use a combination of near-infrared laser diodes, phase modulation and opto-electronic frequency conversion.
Externí odkaz:
http://arxiv.org/abs/2108.11136
Autor:
Limbacher, Benedikt, Kainz, Martin, Schoenhuber, Sebastian, Wenclawiak, Moritz, Derntl, Christian, Andrews, Aaron, Detz, Hermann, Strasser, Gottfried, Schwaighofer, Andreas, Lendl, Bernhard, Darmo, Juraj, Unterrainer, Karl
We demonstrate Resonant Tunneling Diodes, embedded in double metal cavities, strongly coupled to the cavity field, while maintaining their electronic properties. We measure the polariton dispersion and find a relative vacuum Rabi splitting of 16%, wh
Externí odkaz:
http://arxiv.org/abs/2004.04810
Akademický článek
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Autor:
Schönhuber, Sebastian, Bachelard, Nicolas, Limbacher, Benedikt, Kainz, Martin, Andrews, Aaron, Detz, Hermann, Strasser, Gottfried, Darmo, Juraj, Rotter, Stefan, Unterrainer, Karl
Publikováno v:
Nature Communications 11, 5530 (2020)
Spectral fingerprints of molecules are mostly accessible in the terahertz and mid-infrared ranges, such that efficient molecular-detection technologies rely on broadband coherent light sources at such frequencies. THz Quantum Cascade Lasers can achie
Externí odkaz:
http://arxiv.org/abs/1912.04339
Autor:
Vogelbacher, Florian, Nevlacsil, Stefan, Sagmeister, Martin, Kraft, Jochen, Unterrainer, Karl, Hainberger, Rainer
In this work we present a detailed analysis of individual loss mechanisms in silicon nitride partial Euler bends at a wavelength of 850 nm. This structure optimizes the transmission through small radii optical waveguide bends. The partial Euler bend
Externí odkaz:
http://arxiv.org/abs/1910.07257
Autor:
Vogelbacher, Florian, Zhou, Xue, Huang, Jinhua, Li, Mingzhu, Jiang, Ke-Jian, Song, Yanlin, Unterrainer, Karl, Hainberger, Rainer
Publikováno v:
Opt. Mater. Express 9, 1208-1222 (2019)
The optimization of material gain in optically pumped dye-doped polymer thin films is an important task in the development of organic solid-state lasers. In this work, we present a theoretical model that accommodates the influence of concentration qu
Externí odkaz:
http://arxiv.org/abs/1909.09590
Akademický článek
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Autor:
Rösch, Markus, Beck, Mattias, Süess, Martin J., Bachmann, Dominic, Unterrainer, Karl, Faist, Jérôme, Scalari, Giacomo
We report on a heterogeneous active region design for terahertz quantum cascade laser based frequency combs. Dynamic range, spectral bandwidth as well as output power have been significantly improved with respect to previous designs. When operating i
Externí odkaz:
http://arxiv.org/abs/1612.07594