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Isotope-selective ionization utilizing field-free alignment of isotopologues using a switched nanosecond laser pulse
https://repo.qst.go.jp/records/48501
https://repo.qst.go.jp/records/485014eec91ac-1169-4bb1-929d-ab1db0171222
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-02-14 | |||||
| タイトル | ||||||
| タイトル | Isotope-selective ionization utilizing field-free alignment of isotopologues using a switched nanosecond laser pulse | |||||
| 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 |
赤木, 浩
× 赤木, 浩× 熊田, 高之× Otobe, Tomohito× Itakura, Ryuuji× 長谷川, 宗良× 大島, 康裕× 赤木 浩× 乙部 智仁× 板倉 隆二 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We propose and numerically simulate a method of laser isotope separation based on field-free alignment of isotopologues, utilizing an intense “switched” nanosecond (ns) laser field which is slowly turned on and rapidly turned off at the peak with the falling time of 200 fs. The femtosecond (fs) laser induced alignment of molecules including a heavy atom is severely disturbed by ionization because of their small ionization potential. Our simulations for I79Br and I81Br isotopologues demonstrate that the switched ns laser field can make isotopologues well-aligned with the reduced ionization probability at the laser intensity [I0 = 2 TW/cm2 (= 2 × 1012 W/cm2)] which is an order-of-magnitude lower than a typical intensity (I0 = 20 TW/cm2) for field-free alignment induced by a fs laser field. In our simulations, IiBr isotopologues (i = 79 or 81) aligned with the switched ns laser field are selectively ionized by an intense fs laser pulse at an appropriate time delay from the alignment pulse. | |||||
| 書誌情報 |
Applied Physics B-LASERS AND OPTICS 巻 124, p. 14-1-14-8, 発行日 2018-01 |
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| 出版者 | ||||||
| 出版者 | Springer Berlin Heidelberg | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1432-0649 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s00340-017-6884-7 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1007/s00340-017-6884-7 | |||||
| 関連名称 | https://doi.org/10.1007/s00340-017-6884-7 | |||||
