| Presentation | 1998/10/15 A Study on Q-switching of CO_2 Laser pumped Submillimeter Wave Lasers using a Photo-excited Silicon Substrate Hiroaki Minamide, Tatsuo Nozokido, Jongsuck Bae, Koji Mizuno, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Generarion of free carriers (electron-hole pairs) in semiconductors irradiated with short laser pulses leads to a rapid change in the complex refractive index of semiconductors, if the photon energy exceeds the band gap energy of semiconductors. By controlling the laser-produced free carrier density, reflectance and transmittance of semiconductors for the submillimeter wave (SMMW) radiation can be varied. As an application of this modulation technique, we use a high resistivity silicon plate as one of the mirrors in the cavity of a CO_2 laser pumped submillimeter wave laser to generate Q-switched SMMW pulses. The experimental results are shown in this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Submillimeter wave gas laser / Q-switching / Silicon plate / Free-carrier dispersion / Optical control |
| Paper # | EMC98-50,MW98-89 |
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| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 1998/10/15(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Q-switching of CO_2 Laser pumped Submillimeter Wave Lasers using a Photo-excited Silicon Substrate |
| Sub Title (in English) | |
| Keyword(1) | Submillimeter wave gas laser |
| Keyword(2) | Q-switching |
| Keyword(3) | Silicon plate |
| Keyword(4) | Free-carrier dispersion |
| Keyword(5) | Optical control |
| 1st Author's Name | Hiroaki Minamide |
| 1st Author's Affiliation | Research Institute of Electrical Communication, Tohoku University() |
| 2nd Author's Name | Tatsuo Nozokido |
| 2nd Author's Affiliation | Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN) |
| 3rd Author's Name | Jongsuck Bae |
| 3rd Author's Affiliation | Research Institute of Electrical Communication, Tohoku University : Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN) |
| 4th Author's Name | Koji Mizuno |
| 4th Author's Affiliation | Research Institute of Electrical Communication, Tohoku University : Photodynamics Research Center, The Institute of Physical and Chemical Research (RIKEN) |
| Date | 1998/10/15 |
| Paper # | EMC98-50,MW98-89 |
| Volume (vol) | vol.98 |
| Number (no) | 324 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |