Presentation 2018-08-24
Recent progress of high output power THz quantum cascade lasers
Tsung-Tse Lin, Ke Wang, Li Wang, Hideki Hirayama,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Terahertz quantum cascade lasers (THz QCLs) are theoretically analyzed based on the non-equilibrium Green’s function (NEGF) method. Simulations reveal a carrier leakage channel from upper laser level to the first high energy state in the emitting double-well of the next period. This leakage channel is due to unintentional alignment of the two states, which is distinct from the thermally activated leakage channels. By tuning the energy of this high energy state, such leakage current is clearly suppressed. The optimized THz QCL is much improved, with a peak power of 350 mW contrasting to 220 mW for the not-optimized structure.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) THz / QCLs
Paper # R2018-28,EMD2018-31,CPM2018-31,OPE2018-58,LQE2018-47
Date of Issue 2018-08-16 (R, EMD, CPM, OPE, LQE)

Conference Information
Committee EMD / LQE / OPE / CPM / R
Conference Date 2018/8/23(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Otaru Camber of Commerce & Industry
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Shinichi Wada(TMC System) / Kiichi Hamamoto(Kyusyu Univ.) / Kouki Sato(Furukawa Electric Industries) / Fumihiko Hirose(Yamagata Univ.) / Tetsushi Yuge(National Defense Academy)
Vice Chair Yoshiki Kayano(Univ. of Electro-Comm.) / Hiroshi Aruga(Mitsubishi Electric) / Hiroshi Takahashi(Sophia Univ.) / Mayumi Takeyama(Kitami Inst. of Tech.) / Akira Asato(Fujitsu)
Secretary Yoshiki Kayano(Muroran Inst. of Tech.) / Hiroshi Aruga(Fuji Electric) / Hiroshi Takahashi(SEI) / Mayumi Takeyama(Furukawa Electric Industries) / Akira Asato(Univ. of Tokyo)
Assistant Yuichi Hayashi(NAIST) / Masaya Nagai(Osaka Univ.) / Yuya Shoji(Tokyo Inst. of Tech.) / Kazunori Seno(NTT) / Yasuo Kimura(Tokyo Univ. of Tech.) / Hideki Nakazawa(Hirosaki Univ.) / Tomoaki Terasako(Ehime Univ.) / Shinji Inoue(Kansai Univ.) / Hiroyuki Okamura(Hiroshima Univ.)

Paper Information
Registration To Technical Committee on Electromechanical Devices / Technical Committee on Lasers and Quantum Electronics / Technical Committee on OptoElectronics / Technical Committee on Component Parts and Materials / Technical Committee on Reliability
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Recent progress of high output power THz quantum cascade lasers
Sub Title (in English)
Keyword(1) THz
Keyword(2) QCLs
1st Author's Name Tsung-Tse Lin
1st Author's Affiliation RIKEN(RIKEN)
2nd Author's Name Ke Wang
2nd Author's Affiliation RIKEN(RIKEN)
3rd Author's Name Li Wang
3rd Author's Affiliation RIKEN(RIKEN)
4th Author's Name Hideki Hirayama
4th Author's Affiliation RIKEN(RIKEN)
Date 2018-08-24
Paper # R2018-28,EMD2018-31,CPM2018-31,OPE2018-58,LQE2018-47
Volume (vol) vol.118
Number (no) R-185,EMD-186,CPM-187,OPE-188,LQE-189
Page pp.pp.57-61(R), pp.57-61(EMD), pp.57-61(CPM), pp.57-61(OPE), pp.57-61(LQE),
#Pages 5
Date of Issue 2018-08-16 (R, EMD, CPM, OPE, LQE)