Analysis of ground state and excited state of powder according to laser polarization response

Yachao Li; Haiying Song; Xiaoran Ma; Chao Ge; Shibing Liu

doi:10.1117/12.2690232

17 August 2023 Analysis of ground state and excited state of powder according to laser polarization response

Yachao Li, Haiying Song, Xiaoran Ma, Chao Ge, Shibing Liu

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127572M (2023) https://doi.org/10.1117/12.2690232
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

The ineffectiveness of powder morphology of crystal materials for laser polarization has reached a consensus in almost all steady-state experiments. However, in-depth understanding about their anisotropic behavior in ultrafast carrier dynamics is still lacking. Here we systematically explore the polarization response of MAPbI3 powder to ultrafast laser based on two-color pump-probe transmission technology. The isotropy of pump polarization and the anisotropy of probe polarization reveal the related mechanism of the interaction between ultrafast laser polarization and powder materials. It provides insight into the ultrafast photophysical process of MAPbI3 powder and helps to develop polarization-sensitive and ultrafast-responsive optoelectronic devices.

Citation Download Citation

Yachao Li, Haiying Song, Xiaoran Ma, Chao Ge, and Shibing Liu "Analysis of ground state and excited state of powder according to laser polarization response", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127572M (17 August 2023); https://doi.org/10.1117/12.2690232

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KEYWORDS

Polarization

Ultrafast phenomena

Transmittance

Crystals

Pulse signals

Anisotropy

Ground state

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