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Plasma-mirror FROG using liquid-sheet water jet in ultraviolet region
https://repo.qst.go.jp/records/76177
https://repo.qst.go.jp/records/761777ec653ea-39f2-47ad-a3ff-42e66fbf6728
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-07-02 | |||||
| タイトル | ||||||
| タイトル | Plasma-mirror FROG using liquid-sheet water jet in ultraviolet region | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Endo, Tomoyuki
× Endo, Tomoyuki× Tsubochi, Masaaki× Itakura, Ryuji× Endo, Tomoyuki× Tsubouchi, Masaaki× Itakura, Ryuji |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Pulse characterization in the vacuum-ultraviolet (VUV) region is not trivial. Since the photon energy is smaller than the ionization potentials, two-photon absorption is required to characterize a VUV waveform by the photoelectron spectroscopy. Recently, we developed an alternative method based on the time-resolved reflection spectroscopy. In this plasma-mirror frequency resolved optical gating (PM-FROG) technique, ultrafast switching of the reflectivity of a plasma mirror generated by focusing intense near-infrared (NIR) pulses on a solid target is used as a gate function. Since reflective optics is employed, this technique can be used for the characterization of broadband pulses. However, due to a damage of the solid target by laser ablation, the applicable repetition rate of PM-FROG was limited. In this study, we developed the time-resolved reflection spectroscopy with a liquid-sheet target to extend the application range, and demonstrated the eligibility of the waveform obtained by PM-FROG in a UV region. We also discussed the obtained plasma-mirror reflectivity as a function of the free-electron density to understand underlying physics of plasma formation. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | CLEO/Europe-EQEC 2019 | |||||
| 発表年月日 | ||||||
| 日付 | 2019-06-24 | |||||
| 日付タイプ | Issued | |||||
