| Presentation | 2017-12-19 Simulation on the optical gain of GaN-based THz-QCLs Yun Joosun, Wang Ke, Hideki Hirayama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigated GaN-based THz quantum cascade laser (THz-QCL) by utilizing self-consistent non-equilibrium Green’s function method (SC-NEGF) considering level broadening. Since severe level broadening by strong phonon-electron interaction is a major problem disturbing to obtain enough gain for lasing in GaN-based QCLs, we designed an example band structure which can circumvent the interference by the level broadening. The designed structure consists of double quantum well structure with AlGaN/GaN/AlGaN/GaN material system. Analysis results showed high average optical gain over 100 cm-1 at room temperature from 8.6 to 13.1 THz with the designed band structure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | QCLNEGFGaNAlGaN |
| Paper # | ED2017-90 |
| Date of Issue | 2017-12-11 (ED) |
| Conference Information | |
| Committee | ED |
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| Conference Date | 2017/12/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | RIEC, Tohoku Univ |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Millimeter-wave, terahertz-wave devices and systems |
| Chair | Kunio Tsuda(Toshiba) |
| Vice Chair | Michihiko Suhara(TMU) |
| Secretary | Michihiko Suhara(New JRC) |
| Assistant | Toshiyuki Oishi(Saga Univ.) / Tatsuya Iwata(TUT) |
| Paper Information | |
| Registration To | Technical Committee on Electron Devices |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simulation on the optical gain of GaN-based THz-QCLs |
| Sub Title (in English) | |
| Keyword(1) | QCLNEGFGaNAlGaN |
| 1st Author's Name | Yun Joosun |
| 1st Author's Affiliation | The Institute of Physical and Chemical Research(RIKEN) |
| 2nd Author's Name | Wang Ke |
| 2nd Author's Affiliation | The Institute of Physical and Chemical Research(RIKEN) |
| 3rd Author's Name | Hideki Hirayama |
| 3rd Author's Affiliation | The Institute of Physical and Chemical Research(RIKEN) |
| Date | 2017-12-19 |
| Paper # | ED2017-90 |
| Volume (vol) | vol.117 |
| Number (no) | ED-364 |
| Page | pp.pp.69-72(ED), |
| #Pages | 4 |
| Date of Issue | 2017-12-11 (ED) |