| Presentation | 2010-12-17 Study of Carrier Dynamics in LT-GaAs Photoconductive Switch using Pump-Probe Laser Terahertz Emission Microscope Shogo FUJIWARA, Iwao KAWAYAMA, Hironaru MURAKAMI, Masayoshi TONOUCHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have developed a pump-probe laser terahertz emission microscope (PP-LTEM) to evaluate ultrafast carrier dynamics in electronic materials. PP-LTEM utilizes the terahertz emission from a sample excited by femtosecond probe pulses being irradiated to the sample after pump pulse irradiation. Using this system, we can evaluate the local or two-dimensional dynamics of photo-excited carriers in the materials with a time resolution of several hundreds of femtoseconds and spatial-resolution of ～1μm. In this study, we evaluated two-dimensional carrier dynamics in a dipole type photoconductive switch fabricated on LT-GaAs, and observed the time-variation of screening of the electric field applied to the electrodes of photoconductive switch by pump pulse excitation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | TeraHertz / pump-probe technique / LTEM / carrier dynamics |
| Paper # | ED2010-174 |
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| Conference Information | |
| Committee | ED |
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| Conference Date | 2010/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of Carrier Dynamics in LT-GaAs Photoconductive Switch using Pump-Probe Laser Terahertz Emission Microscope |
| Sub Title (in English) | |
| Keyword(1) | TeraHertz |
| Keyword(2) | pump-probe technique |
| Keyword(3) | LTEM |
| Keyword(4) | carrier dynamics |
| 1st Author's Name | Shogo FUJIWARA |
| 1st Author's Affiliation | Institute of Laser Engineering, Osaka University() |
| 2nd Author's Name | Iwao KAWAYAMA |
| 2nd Author's Affiliation | Institute of Laser Engineering, Osaka University |
| 3rd Author's Name | Hironaru MURAKAMI |
| 3rd Author's Affiliation | Institute of Laser Engineering, Osaka University |
| 4th Author's Name | Masayoshi TONOUCHI |
| 4th Author's Affiliation | Institute of Laser Engineering, Osaka University |
| Date | 2010-12-17 |
| Paper # | ED2010-174 |
| Volume (vol) | vol.110 |
| Number (no) | 342 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |