Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica

Christos-Edward Athanasiou; Yves Bellouard

doi:10.1117/12.2214537

9 March 2016 Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica

Christos-Edward Athanasiou, Yves Bellouard

Proceedings Volume 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI; 97401E (2016) https://doi.org/10.1117/12.2214537
Event: SPIE LASE, 2016, San Francisco, California, United States

Abstract

Femtosecond pulses used in the regime where self-organized patterns are found have two noticeable effects in amorphous silica’s (a-SiO₂) optical and chemical properties: The decrease of the material’s refractive index as well as an enhanced etching selectivity. However, the effect on the material mechanical properties is unexplored. In this paper, we present elastic modulus measurements of fused silica exposed to femtosecond laser pulses in the regime where nanogratings are found. The measurement principle is based on the use of femtosecond laser fabricated displacement amplification mechanism combined with a discrete stiffness model. In this laser exposure regime, a significant decrease of the elastic modulus is observed. Our findings are consistent with the existence of a porous structure found within nanogratings lamellas.

Citation Download Citation

Christos-Edward Athanasiou and Yves Bellouard "Investigation of the micro-mechanical properties of femtosecond laser-induced phases in amorphous silica", Proc. SPIE 9740, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVI, 97401E (9 March 2016); https://doi.org/10.1117/12.2214537

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