Optical properties and thermal response of Au/Cr double-layer metal films induced by femtosecond lasers

Anmin Chen; Shuchang Li; Mingxing Jin

doi:10.1117/12.2182009

4 May 2015 Optical properties and thermal response of Au/Cr double-layer metal films induced by femtosecond lasers

Anmin Chen, Shuchang Li, Mingxing Jin

Proceedings Volume 9543, Third International Symposium on Laser Interaction with Matter; 95430J (2015) https://doi.org/10.1117/12.2182009
Event: Third International Symposium on Laser Interaction with Matter, 2014, Jiangsu, China

Abstract

Femtosecond pulse laser was used to induce Au/Cr double-layer metal films. The time dependence of transient relative reflectivity was measured by optical pump-probe experiment for 400 nm pump light and 800 nm probe light. The pulse width was 90 fs. The drastic changes in reflectivity were observed, and double-layer films with different thickness of Au layer leaded to different reflectivity changes. Next, a critical points model with the Drude model was proposed to describe the permittivity of Au in the 200-1000 nm range. This model was combined with a two-temperature equation to investigate optical properties and thermal response of Au/Cr double-layer metal films induced by femtosecond lasers. The simulated results provided more physical information for femtosecond laser induced double-layer metal films.

Citation Download Citation

Anmin Chen, Shuchang Li, and Mingxing Jin "Optical properties and thermal response of Au/Cr double-layer metal films induced by femtosecond lasers", Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95430J (4 May 2015); https://doi.org/10.1117/12.2182009

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