Ultrafast dynamics of optical phonons in α-quartz launched by THz wave and femtosecond laser combined excitation source

Danni Ma, Liquan Dong, Yuejin Zhao, Cunlin Zhang, Cédric Weber, Mostafa Shalaby, Liangliang Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

We use the terahertz (THz) wave generated from the 1550 nm femtosecond laser excited DAST crystal and an 800 nm femtosecond laser to jointly focus on the α-quartz crystal, and prompt it to produce ultrafast coherent phonon dynamic effect. The experimental phenomena were detected by means of THz Time-Domain Spectroscopy. We found that when the two excitation beams have different relative time delays, the oscillation frequencies of the phonon generated by the quartz crystal shift. It is of great importance for us to study phonon dynamics of quartz crystal and other materials.

源语言英语
主期刊名2021 46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
出版商IEEE Computer Society
ISBN(电子版)9781728194240
DOI
出版状态已出版 - 2021
活动46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021 - Chengdu, 中国
期限: 30 8月 20213 9月 2021

出版系列

姓名International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
2021-August
ISSN(印刷版)2162-2027
ISSN(电子版)2162-2035

会议

会议46th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2021
国家/地区中国
Chengdu
时期30/08/213/09/21

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