Presentation 2011-10-28
Design of terahertz quantum cascade lasers for higher temperature operation
Hiroaki YASUDA, Tillmann KUBIS, Iwao HOSAKO, Norihiko SEKINE, Kazuhiko HIRAKAWA,
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Abstract(in English) We clarified the degradation mechanisms for population inversion in THz-QCLs at high temperatures using the non-equilibrium Green's function (NEGF) method and investigated new THz-QCL schemes for further improvement. Using the achievements, we proposed a novel and simple two-well THz-QCL structure that has the scattering injection and diagonal transition schemes. This structure would lead to a realization of wavelength-tunable THz-QCLs, which are not realized in the conventional THz-QCLs.
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Keyword(in English) Quantum Cascade Laser / Terahertz / Non-equilibrium Green's function
Paper # MWP2011-48
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Conference Information
Committee MWP
Conference Date 2011/10/21(1days)
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Paper Information
Registration To Microwave and Millimeter-wave Photonics (MWP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of terahertz quantum cascade lasers for higher temperature operation
Sub Title (in English)
Keyword(1) Quantum Cascade Laser
Keyword(2) Terahertz
Keyword(3) Non-equilibrium Green's function
1st Author's Name Hiroaki YASUDA
1st Author's Affiliation National Institute of Information and Communications Technology()
2nd Author's Name Tillmann KUBIS
2nd Author's Affiliation Network for Computational Nanotechnology, Purdue University
3rd Author's Name Iwao HOSAKO
3rd Author's Affiliation National Institute of Information and Communications Technology
4th Author's Name Norihiko SEKINE
4th Author's Affiliation National Institute of Information and Communications Technology
5th Author's Name Kazuhiko HIRAKAWA
5th Author's Affiliation Institute of Industrial Science and INOIE, University of Tokyo
Date 2011-10-28
Paper # MWP2011-48
Volume (vol) vol.111
Number (no) 271
Page pp.pp.-
#Pages 6
Date of Issue