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Manipulation of valley pseudospin in WSe2 monolayer by ultrafast laser pulses
https://repo.qst.go.jp/records/83181
https://repo.qst.go.jp/records/831813e5e8c6b-3951-44a0-aa68-2905ba755200
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-06-03 | |||||
| タイトル | ||||||
| タイトル | Manipulation of valley pseudospin in WSe2 monolayer by ultrafast laser pulses | |||||
| 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 |
Arqum, Hashmi,
× Arqum, Hashmi,× Hashmi, Arqum |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Time-dependent density functional theory (TDDFT) combined with linear-response treatment Is used to study the propagation of light and valley pseudospin in the WSe2 monolayer. Electromagnetic field analysis is done by calculating the transmission and reflection. To get an understanding of valley pseudospin, we calculate the k-resolved electron populations. We observed that the valley degeneracy is lifted and only K or Kʹ electron is excited by changing the helicity of the 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 | OPTO Symposium on Photon and Beam Science 2021 | |||||
| 発表年月日 | ||||||
| 日付 | 2021-06-22 | |||||
| 日付タイプ | Issued | |||||
