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Polarization-dependent ultrafast carrier dynamics in GaAs with anisotropic response

Authors :
Ya-Chao Li
Chao Ge
Peng Wang
Shuang Liu
Xiao-Ran Ma
Bing Wang
Hai-Ying Song
Shi-Bing Liu
Source :
Chinese Physics B. 31:067102
Publication Year :
2022
Publisher :
IOP Publishing, 2022.

Abstract

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.

Details

ISSN :
16741056
Volume :
31
Database :
OpenAIRE
Journal :
Chinese Physics B
Accession number :
edsair.doi...........554c2a4dfafb6ea3495af6caba348c92
Full Text :
https://doi.org/10.1088/1674-1056/ac422b