2003 Fiscal Year Final Research Report Summary
Generation of short pulse THz radiation by interaction between ultra short pulse laser and magnetized plasmas
| Project/Area Number |
14580513
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
プラズマ理工学
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| Research Institution | Utsunomiya University |
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Principal Investigator |
YUGAMI Noboru Utsunomiya University, Associate Professor, 工学研究科, 助教授 (60220521)
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| Co-Investigator(Kenkyū-buntansha) |
HIGASHIGUCHI Takeshi Miyazaki University, Research Associate, 工学部, 助手 (80336289)
ITO Hiroaki Utsunomiya University, Research Associate, 工学研究科, 助手 (70302445)
NISHIDA Yasushi Utsunomiya University, Professor, 工学研究科, 教授 (00005315)
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| Project Period (FY) |
2002 – 2003
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| Keywords | terahertz / electromagnetic wave / short pulse radiation / laser / magnetized plasma |
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| Research Abstract |
The oscillating current in the plasma can generate the emission of radiation. Because the electron plasma wave in the plasma oscillates with the plasma frequency, which is proportional to the square root of plasma density, we can expect the high frequency radiation from the plasma. However, the emitted radiation is strongly damped due to the cutoff. We applied the magnetic field to the plasma and we observed the radiation with pulse duration of 200ps and in the microwave frequency region.
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