WEKO3
アイテム
Analytical theory for the transient absorption spectroscopy under circularly polarized laser
https://repo.qst.go.jp/records/72315
https://repo.qst.go.jp/records/72315d14bc181-24c2-4a3a-bbce-8aeed78c13e6
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-05-11 | |||||
| タイトル | ||||||
| タイトル | Analytical theory for the transient absorption spectroscopy under circularly polarized laser | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 |
乙部, 智仁
× 乙部, 智仁× 乙部 智仁 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | An theoretically investigation is reported describing the dynamical Franz-Keldysh effect in femtosecond time resolution, that is, the time-dependent modulation of a dielectric function under an irradiation of an intense laser field. Two distinct approaches are developed for a pump-probe formalism : first-principles simulation based on real-time time-dependent density functional theory and analytic consideration of a simple two-band model. While time-average modulation may be reasonably described by the static Franz-Keldysh theory, a remarkable subcycle modulation and the phase shift is found to appear between the dielectric response and the applied electric field for linear polarization.In contrast, the subcycle modulation of the dielectric function, a significant feature of the time-resolved dynamical Franz-Keldysh effect (Tr-DFKE), disappears for circularly polarized laser . |
|||||
| 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 | 光・量子ビーム科学合同シンポジウム | |||||
| 発表年月日 | ||||||
| 日付 | 2017-05-10 | |||||
| 日付タイプ | Issued | |||||
