Image enhancement based on optical parametric amplification

Jing Yang; Cong Wang; Gao-hang Cai; Xiu-juan Pan; Peng-cheng Di; Jing-yuan Zhang; Da-fu Cui; Qin-jun Peng; Zu-yan Xu

doi:10.1117/12.2268265

12 May 2017 Image enhancement based on optical parametric amplification

Jing Yang, Cong Wang, Gao-hang Cai, Xiu-juan Pan, Peng-cheng Di, Jing-yuan Zhang, Da-fu Cui, Qin-jun Peng, Zu-yan Xu

Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 101731V (2017) https://doi.org/10.1117/12.2268265
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

The expansion dynamics of laser-induced plasma (LIP) at front and rear surface of fused silica under 1064 nm nanosecond laser irradiation was investigated with fast photography, shadowgraphy and interferometry. Self-emission images of LIP show that the rear surface plasma (RSP) splits into a fast and a slow component at tens of nanoseconds delay after laser irradiation while the front surface plasma (FSP) does not split. Moreover, the FSP is identified to mainly contain free electrons while the RSP includes ejected neutrals. Thermal emission of superheated neutrals is suggested to be responsible for the generation of slow component.

Citation Download Citation

Jing Yang, Cong Wang, Gao-hang Cai, Xiu-juan Pan, Peng-cheng Di, Jing-yuan Zhang, Da-fu Cui, Qin-jun Peng, and Zu-yan Xu "Image enhancement based on optical parametric amplification", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101731V (12 May 2017); https://doi.org/10.1117/12.2268265

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