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Relativistic Doppler reflection of terahertz light from a moving plasma front in an optically pumped Si wafer
https://repo.qst.go.jp/records/81245
https://repo.qst.go.jp/records/81245763d8c26-dba4-4fe9-8510-d1b3c3bf77d0
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-09-15 | |||||
タイトル | ||||||
タイトル | Relativistic Doppler reflection of terahertz light from a moving plasma front in an optically pumped Si wafer | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kohno, Nanase
× Kohno, Nanase× Itakura, Ryuji× Tsubouchi, Masaaki× Ryuji, Itakura× Masaaki, Tsubouchi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The relativistic Doppler reflection of terahertz (THz) light from a photoinduced moving plasma front in a silicon wafer irradiated by an optical pump light was investigated. The intensity and the phase shift spectra of the reflected THz light were investigated by THz time-domain spectroscopy with broadband electro-optic sampling in a thin GaP crystal. The frequency up-shift factor, which is a ratio of averaged frequencies from after to before Doppler reflection, was measured to be Gamma = 2.02 with a pump energy density of 3.3 μJ/mm2 at a wavelength of 800 nm. The frequency up-shift increased as optical pump energy density increased. The frequency up-shift was reproduced by evaluating the moving plasma front whose spatial carrier density distribution depended on the pump energy density. | |||||
書誌情報 |
Physical Review B 巻 102, 号 23, p. 235201-1-235201-9, 発行日 2020-12 |
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出版者 | ||||||
出版者 | APS | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-9950 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1103/PhysRevB.102.235201 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://link.aps.org/doi/10.1103/PhysRevB.102.235201 |