| Presentation | 2007-10-11 Polarization Properties in III-nitride Quantum Wells with Various Substrate Orientations A. Atsushi YAMAGUCHI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Polarization properties in III-nitride quantum wells with various substrate orientations have been investigated theoretically. It is found that in-plane optical anisotropy appears in non C-plane surfaces, and that its direction is determined by the competition of quantum confinement effect and strain effect. It is also shown that the optical anisotropy is very sensitive to in-plane strain anisotropy. Meanwhile, it is known that AlGaN films with high Al composition mainly emit the light polarized in the c-direction and this causes low emission efficiency in the c-face based devices. It is predicted, in this study, that this unfavorable polarization can be switched into favorable in-plane polarization by decreasing quantum well width and/or introducing in-plane compressive strain. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical anisotropy / GaN / AlGaN / valence band / strain / calculation |
| Paper # | ED2007-156,CPM2007-82,LQE2007-57 |
| Date of Issue |
| Conference Information | |
| Committee | LQE |
|---|---|
| Conference Date | 2007/10/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Polarization Properties in III-nitride Quantum Wells with Various Substrate Orientations |
| Sub Title (in English) | |
| Keyword(1) | optical anisotropy |
| Keyword(2) | GaN |
| Keyword(3) | AlGaN |
| Keyword(4) | valence band |
| Keyword(5) | strain |
| Keyword(6) | calculation |
| 1st Author's Name | A. Atsushi YAMAGUCHI |
| 1st Author's Affiliation | Research Laboratory for Integrated Technological Systems, Kanazawa Institute of Technology() |
| Date | 2007-10-11 |
| Paper # | ED2007-156,CPM2007-82,LQE2007-57 |
| Volume (vol) | vol.107 |
| Number (no) | 253 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |