Zobrazeno 1 - 10
of 100
pro vyhledávání: '"M.C. Wanke"'
Publikováno v:
IEEE Journal of Quantum Electronics. 42:292-301
We present a theory for intersubband lasers, based on the solution of the Maxwell-semiconductor Bloch equations for the laser field and active medium. The collision contributions are treated within the relaxation rate approximation, where the relaxat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c85e27ec33a85beb830407837f6f1b
https://doi.org/10.1109/jqe.2006.869813
https://doi.org/10.1109/jqe.2006.869813
Publikováno v:
Optics Communications. 218:87-92
We show in detail that an array of optical waveguides whose curvature periodically changes can give rise to AC optical Bloch oscillations. The equivalent of the AC driving field is generated by the periodic curvature change of the waveguide array. Fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55bc99d11b62b7f2286b28b6cfb2c459
https://doi.org/10.1016/s0030-4018(03)01172-6
https://doi.org/10.1016/s0030-4018(03)01172-6
Akademický článek
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Publikováno v:
2006 IEEE 20th International Semiconductor Laser Conference, 2006. Conference Digest..
Using a microscopic theory based on the Maxwell-semiconductor Bloch equations, we investigate the possibilities of optically driven QCLs. We show that in a four level cascaded-emission scheme, quantum coherence effects can yield gain without inversio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aefb5680fe678e601a3b8672c7d1fee
https://doi.org/10.1109/islc.2006.1708076
https://doi.org/10.1109/islc.2006.1708076
Autor:
M.C. Wanke, F. Capasso, Deborah L. Sivco, A. Tredicucci, A.F. Cho, C. Gmachi, A. L. Hutchinson
Publikováno v:
LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No.00CH37080).
We have demonstrated the feasibility of using double quantum well superlattices as the active region of a quantum cascade (QC) laser. The features of the new design allow for much greater flexibility than previous SL QC lasers opening the possibility
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb1cf6f6aaa19af0148ea9caf59476ce
https://doi.org/10.1109/leos.2000.890739
https://doi.org/10.1109/leos.2000.890739
Autor:
Deborah L. Sivco, C. Gmachl, M.C. Wanke, A.Y. Cho, Alessandro Tredicucci, Federico Capasso, A. L. Hutchinson
A quantum-cascade laser using a double-quantum-well graded superlattice as the active region is presented. Each SL period consists of two strongly coupled quantum wells resulting in the splitting of the lowest miniband into two minibands. These two m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::695950b3c9f876081bd058c744722038
https://hdl.handle.net/11384/84554
https://hdl.handle.net/11384/84554
Publikováno v:
Conference on Lasers and Electro-Optics (CLEO 2000). Technical Digest. Postconference Edition. TOPS Vol.39 (IEEE Cat. No.00CH37088).
Summary form only given. Several applications require thin terhertz (THz) detectors or emitters. For example, in near-field imaging applications, the emitter needs to be located close to a sample under investigation. In spectroscopy, very thin antenn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b270d3133b4c67cf34caf118a0059e2b
https://doi.org/10.1109/cleo.2000.907347
https://doi.org/10.1109/cleo.2000.907347
Autor:
Thomas W. Crowe, J.S. Allen, A. Moussessian, David B. Rutledge, M.C. Wanke, Yongjun Li, Jung-Chih Chiao
We present a 144-element terahertz quasi-optical grid frequency doubler. The grid is a planar structure with bow-tie antennas as a unit cell, each loaded with a planar Schottky diode. The maximum output power measured for this grid is 24 mW at 1 THz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f207a54deb17d15b2bd6249700f0ba7
https://resolver.caltech.edu/CaltechAUTHORS:MOUieeetmtt98b
https://resolver.caltech.edu/CaltechAUTHORS:MOUieeetmtt98b
Akademický článek
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Akademický článek
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