Femtosecond studies of highly excited electrons and surface modification in metals

Kai Dou; B. Irwin; Robert L. Parkhill; Edward T. Knobbe

doi:10.1117/12.486601

19 February 2003 Femtosecond studies of highly excited electrons and surface modification in metals

Kai Dou, B. Irwin, Robert L. Parkhill, Edward T. Knobbe

Proceedings Volume 4830, Third International Symposium on Laser Precision Microfabrication; (2003) https://doi.org/10.1117/12.486601
Event: LAMP 2002: International Congress on Laser Advanced Materials Processing, 2002, Osaka, Japan

Abstract

Interaction of highly excited electrons in nonequilibrium states with the lattice in metals has been studied using femtosecond pulse lasers. Two ablation regimes are identified as the optical and energy penetration by examining the fluence dependence of ablated depth per pulse. Surface structuring and surface compositioning of metal substrates using a femtosecond pulsed laser irradiation is characterized with the SEM images as a function of laser fluence. Laser ablation provides a mechanism to facilitate an achievement of a nano- and microstructuring on the metal surface. Based on our results, ultrashort pulse provides wide competitive range of applications in surface structuring and patterning from nano- to microdimensional scales.

Citation Download Citation

Kai Dou, B. Irwin, Robert L. Parkhill, and Edward T. Knobbe "Femtosecond studies of highly excited electrons and surface modification in metals", Proc. SPIE 4830, Third International Symposium on Laser Precision Microfabrication, (19 February 2003); https://doi.org/10.1117/12.486601

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