各向异性
超短脉冲
材料科学
极化(电化学)
声子
放松(心理学)
半导体
激光器
超快激光光谱学
激子
凝聚态物理
光电子学
光学
物理
化学
心理学
社会心理学
物理化学
作者
Yachao Li,Chao Ge,Peng Wang,Shuang Liu,Xiaoran Ma,Bing Wang,Haiying Song,Shibing Liu
出处
期刊:Chinese Physics B
[IOP Publishing]
日期:2021-12-11
卷期号:31 (6): 067102-067102
被引量:4
标识
DOI:10.1088/1674-1056/ac422b
摘要
The transient dynamics of anisotropic properties of GaAs was systematically studied by polarization-dependent ultrafast time-resolved transient absorption. Our findings revealed that the anisotropy of reflectivity was enhanced in both pump-induced and probe-induced processes, suggesting an extraordinary resonance absorption of photon–phonon coupling (PPC) with intrinsic anisotropic characteristic in carrier relaxation, regardless of the concrete crystallinity and orientation of GaAs sample. The results, delivering in-depth cognition about the polarization-dependent ultrafast carrier dynamics, also proved the paramount importance of interaction between polarized laser and semiconductor.
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