Influence of the mechanical coupling to aluminum target by Nd:YAG pulsed laser with CW laser

Y. Cai; Y. X. Zhu; M. L. Zhou; C. H. Wei

doi:10.1117/12.2268347

12 May 2017 Influence of the mechanical coupling to aluminum target by Nd:YAG pulsed laser with CW laser

Y. Cai, Y. X. Zhu, M. L. Zhou, C. H. Wei

Proceedings Volume 10173, Fourth International Symposium on Laser Interaction with Matter; 101730M (2017) https://doi.org/10.1117/12.2268347
Event: 4th International Symposium on Laser Interaction with Matter, 2016, Chengdu, China

Abstract

To research the influence of initial temperature on the laser ablation impulse coupling coefficient, we have established an experimental setup that can response micro impulse of μNs level. The setup mainly contains the impact pendulum with tiny-damp and the micro-angle detector based on laser diffuse reflection. The different initial temperatures were realized by continuum laser irradiation with different intensities and time duration. Experiments were carried out to show the effect of initial temperature on the impulse coupling coefficient by Nd:YAG laser pulses. The results show that the impulse coupling coefficients rapidly increased with the increases of the laser intensity. When incident laser intensity is about 5.2J/cm², the coefficient increased to the maximum. Then the impulse coupling coefficients decreased gradually. Theoretical analysis and the experimental results show that the impulse coefficient increase at the first phase result from increase energy of plasma, while the coefficient decrease at the second phase derived mainly from the target softening under high temperature.

Citation Download Citation

Y. Cai, Y. X. Zhu, M. L. Zhou, and C. H. Wei "Influence of the mechanical coupling to aluminum target by Nd:YAG pulsed laser with CW laser", Proc. SPIE 10173, Fourth International Symposium on Laser Interaction with Matter, 101730M (12 May 2017); https://doi.org/10.1117/12.2268347

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