| Presentation | 2009-10-22 Switching of lasing circular polarizations in a spin VCSEL on GaAs (110) Kazuhiro IKEDA, Shinji KOH, Takeo KATAYAMA, Hitoshi KAWAGUCHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Spin vertical-cavity surface-emitting lasers (Spin VCSELs) are expected to have potential applications such as quantum information systems and optical interconnections, since spin-dependent lasing polarizations can be obtained via the selection rule of optical transitions in the active layer, which enable it to convert the electron spin polarizations (i.e. the information carrier in spintronics) directly into optical signals. We have so far fabricated a VCSEL based on (110)-oriented quantum wells on a GaAs substrate that provide a very long spin relaxation time, and demonstrated circularly polarized lasing with a high degree of circular polarization of 0.94 at 77K. In this paper, we investigated switching of the lasing circular polarizations aiming at the potential applications, and demonstrated 1GHz switching. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spin lasers / (110)-oriented quantum wells / Vertical-cavity surface-emitting lasers / Circularly polarized lasing |
| Paper # | OCS2009-44,OPE2009-110,LQE2009-69 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2009/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Switching of lasing circular polarizations in a spin VCSEL on GaAs (110) |
| Sub Title (in English) | |
| Keyword(1) | Spin lasers |
| Keyword(2) | (110)-oriented quantum wells |
| Keyword(3) | Vertical-cavity surface-emitting lasers |
| Keyword(4) | Circularly polarized lasing |
| 1st Author's Name | Kazuhiro IKEDA |
| 1st Author's Affiliation | Graduate School of Materials Science, Nara Institute of Science and Technology() |
| 2nd Author's Name | Shinji KOH |
| 2nd Author's Affiliation | Graduate School of Materials Science, Nara Institute of Science and Technology |
| 3rd Author's Name | Takeo KATAYAMA |
| 3rd Author's Affiliation | Graduate School of Materials Science, Nara Institute of Science and Technology |
| 4th Author's Name | Hitoshi KAWAGUCHI |
| 4th Author's Affiliation | Graduate School of Materials Science, Nara Institute of Science and Technology |
| Date | 2009-10-22 |
| Paper # | OCS2009-44,OPE2009-110,LQE2009-69 |
| Volume (vol) | vol.109 |
| Number (no) | 245 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |