| Presentation | 1998/10/21 Ultrafast Supercurrent Modulation and Terahertz Radiation With Femtosecond Optical Pulses M. TONOUCHI, M. HANGYO, M. TANI, K. SAKAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We observed terahertz radiation from high-Tc superconductors and explained its mechanism as an ultrafast supercurrent modulation. Comparison between simulations based on rate equations for superconductivity and observed terahertz radiation waveform revealed that an intrinsic recombination life time of optically excited quasiparticles is shorted than 300 femtosecond at low temperature and increases with increasing temperature at near the transition temperature. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | THz radiation / fs laser pulse / YBCO films / nonequilibrium state |
| Paper # | LQE98-85 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 1998/10/21(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) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Ultrafast Supercurrent Modulation and Terahertz Radiation With Femtosecond Optical Pulses |
| Sub Title (in English) | |
| Keyword(1) | THz radiation |
| Keyword(2) | fs laser pulse |
| Keyword(3) | YBCO films |
| Keyword(4) | nonequilibrium state |
| 1st Author's Name | M. TONOUCHI |
| 1st Author's Affiliation | Research Center for Superconducting Materials and Electronics, Osaka University:CREST, Japan Science and Technology Corporation (JST):PRESTO, Japan Sciences and Technology Corporation(JST)() |
| 2nd Author's Name | M. HANGYO |
| 2nd Author's Affiliation | Research Center for Superconducting Materials and Electronics, Osaka University |
| 3rd Author's Name | M. TANI |
| 3rd Author's Affiliation | Kansai Advanced Research Center, Communications Research Laboratory |
| 4th Author's Name | K. SAKAI |
| 4th Author's Affiliation | Kansai Advanced Research Center, Communications Research Laboratory |
| Date | 1998/10/21 |
| Paper # | LQE98-85 |
| Volume (vol) | vol.98 |
| Number (no) | 342 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |