| Presentation | 2017-05-26 Calculated performance of terahertz quantum cascade lasers based on new material systems Hiroaki Yasuda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Calculations for GaSb-based and InGaSb-based THz-QCLs are performed. The rate-equation calculations reveal that the intervalley scattering from the $Gamma$ to the L valleys degrades the performance of GaSb-based THz-QCLs at high temperatures. Use of In_xGa_1-xSb quantum wells is proposed to reduce the intervalley scattering. The calculations using the non-equilibrium Green's function method show that InGaSb-well-based THz-QCLs have larger gain than GaAs-based THz-QCLs at high temperatures. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum cascade laser / Terahertz / GaSb / InGaSb / Intervalley scattering |
| Paper # | LQE2017-16 |
| Date of Issue | 2017-05-18 (LQE) |
| Conference Information | |
| Committee | LQE / LSJ |
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| Conference Date | 2017/5/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Susumu Noda(Kyoto Univ.) |
| Vice Chair | Tsuyoshi Yamamoto(Fujitsu Labs.) |
| Secretary | Tsuyoshi Yamamoto(NTT) / (Tohoku Univ.) |
| Assistant | |
| Paper Information | |
| Registration To | Technical Committee on Lasers and Quantum Electronics / The Laser Society of Japan |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Calculated performance of terahertz quantum cascade lasers based on new material systems |
| Sub Title (in English) | |
| Keyword(1) | Quantum cascade laser |
| Keyword(2) | Terahertz |
| Keyword(3) | GaSb |
| Keyword(4) | InGaSb |
| Keyword(5) | Intervalley scattering |
| 1st Author's Name | Hiroaki Yasuda |
| 1st Author's Affiliation | NICT(NICT) |
| Date | 2017-05-26 |
| Paper # | LQE2017-16 |
| Volume (vol) | vol.117 |
| Number (no) | LQE-61 |
| Page | pp.pp.63-67(LQE), |
| #Pages | 5 |
| Date of Issue | 2017-05-18 (LQE) |