500 Hz, 8 mJ Nd:YAG regenerative amplifier for laser-induced plasma

Tingting Wang; Xuyang Yu; Boning Zhu; Pingxue Li; Hao Liu

doi:10.1117/12.2522369

29 March 2019 500 Hz, 8 mJ Nd:YAG regenerative amplifier for laser-induced plasma

Tingting Wang, Xuyang Yu, Boning Zhu, Pingxue Li, Hao Liu

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110462F (2019) https://doi.org/10.1117/12.2522369
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

A high-energy quasi-continuous-wave (QCW) laser diode-pumped regenerative amplifier was demonstrated for using as a radiation source of laser-induced plasma. The seed source was an all-fiber amplifier, provided pulse width of 454 ps and single pulse energy of 7.7 nJ at a repetition rate of 24.17 MHz and a central wavelength of 1063.9 nm. The solid-state regenerative amplifier used a Nd:YAG crystal was side-pumped by QCW diode bars. With this system, high stability and high energy was generated at wavelength of 1064.1 nm, with pulse width of 392.1 ps and output average power was 4.04 W. The single pulse energy and peak power was 8.08 mJ and 20.6 MW, respectively. The M2 factor was about 1.48. The laser system will use as a picosecond radiation source for the following laser ablation and laser-induced plasma spectrum analysis. In the previous work, the process of laser-induced plasma was simulated by fluid dynamics. The temporal and spatial distribution of electron density and temperature was successfully simulated, corresponding the process of laser irradiation on target were recorded for set of materials (Si, Al, Cu). Finally, the mechanism and evolution process of the picosecond laser irradiation target were obtained.

Citation Download Citation

Tingting Wang, Xuyang Yu, Boning Zhu, Pingxue Li, and Hao Liu "500 Hz, 8 mJ Nd:YAG regenerative amplifier for laser-induced plasma", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110462F (29 March 2019); https://doi.org/10.1117/12.2522369

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available