| Presentation | 2012-11-30 Effects of internal fields and potential inhomogeneity on the lasing properties of InGaN-based green laser diodes fabricated on (0001) polar substrates Yoon Seok KIM, Akio KANETA, Mitsuru FUNATO, Yoichi KAWAKAMI, Takashi MIYOSHI, Shin-ichi NAGAHAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The optical properties of InGaN-based green (512nm) laser structures fabricated on (0001) GaN substrates are investigated by means of photoluminescence and gain spectroscopies. It is demonstrated that in the state-of-the-art (0001) green InGaN quantum wells, potential fluctuations are drastically suppressed, and the internal loss is as low as ～10/cm, both of which lead to a low threshold current density of 2.75kA/cm^2. The suppressed inhomogeneity also contributes to high linearity of gain increase with the injection current. The differential gain is relatively low, and is attributed to a low confinement factor in the longer wavelength spectral range. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Green laser diodes / (0001) planes / Optical properties / Gain / Potential fluctuations / Piezoelectric polarization |
| Paper # | ED2012-81,CPM2012-138,LQE2012-109 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2012/11/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effects of internal fields and potential inhomogeneity on the lasing properties of InGaN-based green laser diodes fabricated on (0001) polar substrates |
| Sub Title (in English) | |
| Keyword(1) | Green laser diodes |
| Keyword(2) | (0001) planes |
| Keyword(3) | Optical properties |
| Keyword(4) | Gain |
| Keyword(5) | Potential fluctuations |
| Keyword(6) | Piezoelectric polarization |
| 1st Author's Name | Yoon Seok KIM |
| 1st Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University() |
| 2nd Author's Name | Akio KANETA |
| 2nd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 3rd Author's Name | Mitsuru FUNATO |
| 3rd Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 4th Author's Name | Yoichi KAWAKAMI |
| 4th Author's Affiliation | Department of Electronic Science and Engineering, Kyoto University |
| 5th Author's Name | Takashi MIYOSHI |
| 5th Author's Affiliation | Nitride Semiconductor Research Laboratory, Nichia Corporation |
| 6th Author's Name | Shin-ichi NAGAHAMA |
| 6th Author's Affiliation | Nitride Semiconductor Research Laboratory, Nichia Corporation |
| Date | 2012-11-30 |
| Paper # | ED2012-81,CPM2012-138,LQE2012-109 |
| Volume (vol) | vol.112 |
| Number (no) | 327 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |