Plasma effects during ablation and drilling using pulsed solid-state lasers

Detlef Breitling; Andreas Ruf; Peter W. Berger; Friedrich H. Dausinger; Sergei M. Klimentov; Paval A. Pivovarov; Taras V. Kononenko; Vitali I. Konov

doi:10.1117/12.513766

2 September 2003 Plasma effects during ablation and drilling using pulsed solid-state lasers

Detlef Breitling, Andreas Ruf, Peter W. Berger, Friedrich H. Dausinger, Sergei M. Klimentov, Paval A. Pivovarov, Taras V. Kononenko, Vitali I. Konov

Author Affiliations +

Proceedings Volume 5121, Laser Processing of Advanced Materials and Laser Microtechnologies; (2003) https://doi.org/10.1117/12.513766
Event: Laser Processing of Advanced Materials and Laser Microtechnologies, 2002, Moscow, Russian Federation

Abstract

Plasma and vapor plumes generated by ultrashort laser pulses have been studied by various optical methods for both single pulse ablation as well as high-repetition rate drilling. Time-resolved shadow and resonance absorption photographs enable to determine the plume and vapor expansion behavior and, by means of an analytical shock wave model, allow to estimate an energy balance that can be refined by plasma transmission measurements. The results furthermore suggest that several types of laser-induced plasmas can be distinguished according to their origin: the material vapor plasma originating at the ablated surface even at moderate intensities, a breakdown plasma at increased power densities occurring in cold vapor or dust particles left from previous ablations during repetitively-pulsed processing and, finally, the optical breakdown in the pure atmosphere at high intensities. The latter also gives rise to nonlinear scattering phenomena resulting in a strong redistribution of the energy density in the beam profile.

Citation Download Citation

Detlef Breitling, Andreas Ruf, Peter W. Berger, Friedrich H. Dausinger, Sergei M. Klimentov, Paval A. Pivovarov, Taras V. Kononenko, and Vitali I. Konov "Plasma effects during ablation and drilling using pulsed solid-state lasers", Proc. SPIE 5121, Laser Processing of Advanced Materials and Laser Microtechnologies, (2 September 2003); https://doi.org/10.1117/12.513766

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