Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses

Barry Luther-Davies; Andrei V. Rode; Nathan R. Madsen; Eugene G. Gamaly

doi:10.1117/1.1905363

1 May 2005 Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses

Barry Luther-Davies, Andrei V. Rode, Nathan R. Madsen, Eugene G. Gamaly

Author Affiliations +

Optical Engineering, Vol. 44, Issue 5, 051102 (May 2005). https://doi.org/10.1117/1.1905363

Abstract

We report experiments on the ablation of arsenic trisulphide and silicon using high-repetition-rate (megahertz) trains of picosecond pulses. In the case of arsenic trisulphide, the average single pulse fluence at ablation threshold is found to be >100 times lower when pulses are delivered as a 76-MHz train compared with the case of a solitary pulse. For silicon, however, the threshold for a 4.1-MHz train equals the value for a solitary pulse. A model of irradiation by high-repetition-rate pulse trains demonstrates that for arsenic trisulphide energy accumulates in the target surface from several hundred successive pulses, lowering the ablation threshold and causing a change from the laser-solid to laser-plasma mode as the surface temperature increases.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Barry Luther-Davies, Andrei V. Rode, Nathan R. Madsen, and Eugene G. Gamaly "Picosecond high-repetition-rate pulsed laser ablation of dielectrics: the effect of energy accumulation between pulses," Optical Engineering 44(5), 051102 (1 May 2005). https://doi.org/10.1117/1.1905363

Published: 1 May 2005

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