| Presentation | 2011-11-18 Fabrication of GaN based Terahertz-Quantum Cascade Laser Structure and Observation of Spontaneous Emission Wataru TERASHIMA, Hideki HIRAYAMA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We study on terahertz-quantum cascade lasers (THz-QCLs) using III-Nitride semiconductors, for the realization of the unexplored frequency range 5-12 THz and the higher temperature operation on THz-QCLs. In this study, we fabricated GaN/AlGaN based QCL structures using a droplet elimination by thermal annealing (DETA) technique, and analyzed the structural and electroluminescence properties. We found that DETA is a useful technique which makes it possible not only to increase the number of periods in the QC structure, but also to improve the structural properties of the QC structure. Further, we successfully for the first time observed spontaneous electroluminescence due to intersubband transition with peaks at frequencies from 1.4 to 2.8 THz on the THz-QCL structures fabricated with using the DETA technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Terahertz / Quantum cascade laser / GaN/AlGaN / Intersubband transition electroluminescence |
| Paper # | ED2011-99,CPM2011-148,LQE2011-122 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2011/11/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fabrication of GaN based Terahertz-Quantum Cascade Laser Structure and Observation of Spontaneous Emission |
| Sub Title (in English) | |
| Keyword(1) | Terahertz |
| Keyword(2) | Quantum cascade laser |
| Keyword(3) | GaN/AlGaN |
| Keyword(4) | Intersubband transition electroluminescence |
| 1st Author's Name | Wataru TERASHIMA |
| 1st Author's Affiliation | RIKEN() |
| 2nd Author's Name | Hideki HIRAYAMA |
| 2nd Author's Affiliation | RIKEN |
| Date | 2011-11-18 |
| Paper # | ED2011-99,CPM2011-148,LQE2011-122 |
| Volume (vol) | vol.111 |
| Number (no) | 290 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |