The acceleration phenomenon of shock wave induced by millisecond-nanosecond combined-pulse laser on silicon

Jingyi Li; Yahui Li; Chenxiao Zhao; Wei Zhang; Guangyong Jin

doi:10.1117/12.2656017

22 December 2022 The acceleration phenomenon of shock wave induced by millisecond-nanosecond combined-pulse laser on silicon

Jingyi Li, Yahui Li, Chenxiao Zhao, Wei Zhang, Guangyong Jin

Author Affiliations +

Proceedings Volume 12459, Sixth International Symposium on Laser Interaction with Matter; 1245906 (2022) https://doi.org/10.1117/12.2656017
Event: Sixth International Symposium on Laser Interaction with Matter (LIMIS 2022), 2022, Ningbo, China

Abstract

Silicon is an indispensable raw material in the manufacture of electronic devices, and it is widely used in aerospace field. We study the motion morphology and velocity of LSW induced by millisecond-nanosecond combined-pulse laser with different pulse delay and laser energy density irradiating silicon based on the method of laser shadowgraphy. Experimental results show that when the pulse delay is 2.4 ms, the millisecond(ms) and nanosecond(ns) laser energy density is 301 J cm⁻² and 12 J cm⁻², respectively, the velocity of shock wave is 1.1 times faster than that induced by single ns pulse laser. It is inferred that the shock wave propagates in the plasma is faster than that in air. The results of this research can provide a reference for the field of optimized laser propulsion.

Citation Download Citation

Jingyi Li, Yahui Li, Chenxiao Zhao, Wei Zhang, and Guangyong Jin "The acceleration phenomenon of shock wave induced by millisecond-nanosecond combined-pulse laser on silicon", Proc. SPIE 12459, Sixth International Symposium on Laser Interaction with Matter, 1245906 (22 December 2022); https://doi.org/10.1117/12.2656017

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