| Presentation | 2000/10/18 Generation of High Power THz Radiation from Arrayed Antenna of CVD Diamond Pbotoconductive Switches Hitoki Yoneda, Kazutatsu Tokuyama, Ken-ichi Ueda, Hironori Yamamoto, Kazuhiro Baba, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High power terahertz(THz)radiation was generated from photoconductive diamond switch array for the first time. This device consisted of more than 2000 photoconductive gaps and a binary mask for spatial modulation of pumping laser. Due to the high breakdown threshold of diamond and the over-coated gap structure for preventing surface flashover, high electric field strength(2x10^6V/cm)can be applied on each gap with DC mode. A 10nJ, 1.5ps FWHM free propagating electro-magnetic pulse was observed from 10mm^2 effective emission area at E=10^5V/cm. This radiation was focused on to 1.4mm・spot with F/2 optics. As there was no severe saturation observed in photoconductive phenomena in CVD diamond up to 10^6V/cm, the focusing intensity can be increased to GW/cm^2 level by increasing the applied electric field and the switching area. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | THz radiation / Diamond thin film / Photoconductive device / Carrier mobility / Ultra-short-pulse laser / Chemical vapor deposited method |
| Paper # | LQE2000-70 |
| Date of Issue |
| Conference Information | |
| Committee | LQE |
|---|---|
| Conference Date | 2000/10/18(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) | Generation of High Power THz Radiation from Arrayed Antenna of CVD Diamond Pbotoconductive Switches |
| Sub Title (in English) | |
| Keyword(1) | THz radiation |
| Keyword(2) | Diamond thin film |
| Keyword(3) | Photoconductive device |
| Keyword(4) | Carrier mobility |
| Keyword(5) | Ultra-short-pulse laser |
| Keyword(6) | Chemical vapor deposited method |
| 1st Author's Name | Hitoki Yoneda |
| 1st Author's Affiliation | Institute for Laser Science, University of Electro-Communications() |
| 2nd Author's Name | Kazutatsu Tokuyama |
| 2nd Author's Affiliation | Institute for Laser Science, University of Electro-Communications |
| 3rd Author's Name | Ken-ichi Ueda |
| 3rd Author's Affiliation | Institute for Laser Science, University of Electro-Communications |
| 4th Author's Name | Hironori Yamamoto |
| 4th Author's Affiliation | Device Materials Research Laboratories, Functional Materials Research Laboratories, NEC Corporation |
| 5th Author's Name | Kazuhiro Baba |
| 5th Author's Affiliation | Device Materials Research Laboratories, Functional Materials Research Laboratories, NEC Corporation |
| Date | 2000/10/18 |
| Paper # | LQE2000-70 |
| Volume (vol) | vol.100 |
| Number (no) | 391 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |