Influence of the beam-focus size on femtosecond laser-induced damage threshold in fused silica

N. Sanner; B. Bussiere; O. Utéza; A. Leray; T. Itina; M. Sentis; J. Y. Natoli; M. Commandré

doi:10.1117/12.762767

20 February 2008 Influence of the beam-focus size on femtosecond laser-induced damage threshold in fused silica

N. Sanner, B. Bussiere, O. Utéza, A. Leray, T. Itina, M. Sentis, J. Y. Natoli, M. Commandré

Proceedings Volume 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII; 68810W (2008) https://doi.org/10.1117/12.762767
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

In this work, spot-size dependence of surface femtosecond laser-induced damage threshold in fused silica is put in evidence when the damage reach the micrometer scale. Measurements of the threshold with various numerical apertures and different techniques are performed, revealing a noticeable threshold increase while decreasing the laser beam-focus size below ~10 μm. This unexpected result could be explained by the presence of micrometer-sized defects pre-existing in the SiO₂ sample.

Citation Download Citation

N. Sanner, B. Bussiere, O. Utéza, A. Leray, T. Itina, M. Sentis, J. Y. Natoli, and M. Commandré "Influence of the beam-focus size on femtosecond laser-induced damage threshold in fused silica", Proc. SPIE 6881, Commercial and Biomedical Applications of Ultrafast Lasers VIII, 68810W (20 February 2008); https://doi.org/10.1117/12.762767

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