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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| physrevresearch.3.l032021.pdf | 986.14 kB | Adobe PDF | 見る/開く |
| タイトル: | Ultrastrong coupling between THz phonons and photons caused by an enhanced vacuum electric field |
| 著者: | Zhang, Zhenya Hirori, Hideki    https://orcid.org/0000-0001-6056-8675 (unconfirmed)Sekiguchi, Fumiya Shimazaki, Ai Iwasaki, Yasuko Nakamura, Tomoya Wakamiya, Atsushi https://orcid.org/0000-0003-1430-0947 (unconfirmed)Kanemitsu, Yoshihiko https://orcid.org/0000-0002-0788-131X (unconfirmed) |
| 著者名の別形: | 章, 振亜 廣理, 英基 関口, 文哉 嶋崎, 愛 岩﨑, 保子 中村, 智也 若宮, 淳志 金光, 義彦 |
| キーワード: | Cavity quantum electrodynamics Light-matter interaction Optical phonons Phonon polariton Perovskite Semiconductors Split-ring resonators Finite-difference time-domain method Terahertz time-domain spectroscopy |
| 発行日: | Jul-2021 |
| 出版者: | American Physical Society (APS) |
| 誌名: | Physical Review Research |
| 巻: | 3 |
| 号: | 3 |
| 論文番号: | L032021 |
| 抄録: | Ultrastrong coupling (USC) between phonons and vacuum photons can result in fascinating quantum phenomena, though it is difficult to achieve due to the small dipole moments of phonons in solids. Here, we investigate the vacuum Rabi splitting by coupling phonons in perovskite CH₃NH₃PbI₃ films with photons in split ring resonators. As the gap size of the resonator decreases, the coupling strength η increases due to the enhanced vacuum field in the gap, reaching the USC regime (η∼0.24) at a gap size of 100 nm. Our results show that nanoresonators are an excellent platform for studies of vacuum-dressed phonon properties. |
| 記述: | テラヘルツ周波数帯の真空量子揺らぎと格子振動の超強結合状態の実現 --量子光を駆動力とする新規物性制御への挑戦--. 京都大学プレスリリース. 2021-07-30. |
| 著作権等: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| URI: | http://hdl.handle.net/2433/264610 |
| DOI(出版社版): | 10.1103/physrevresearch.3.l032021 |
| 関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2021-07-30-0 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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