Absorption of laser light by ions as a mechanism of optical damage in solids

Vladimir N. Strekalov

doi:10.1117/12.306986

20 April 1998 Absorption of laser light by ions as a mechanism of optical damage in solids

Vladimir N. Strekalov

Proceedings Volume 3244, Laser-Induced Damage in Optical Materials: 1997; (1998) https://doi.org/10.1117/12.306986
Event: Laser-Induced Damage in Optical Materials: 1997, 1997, Boulder, CO, United States

Abstract

A model is suggested for damage of pure transparent dielectrics by ultrashort laser pulses. This model is based on the following concepts. The crystal atoms can absorb light performing, simultaneously, diffusion jumps. After such a jump a defect is generated in the lattice. Accumulation of defects leads to amorphization of the sample. It is believed that amorphization of the focal region of the crystal is the initial stage of the damage. Dissipation of this energy spools the further stages of damage, up to the crack formation. Absorption of light and diffusion jump is a single quantum-mechanical transition. It is inertial-free, and therefore it can be caused by pulses of any duration.It is only important that there should be a sufficient number of diffusion jumps during the pulse for the focal region to get amorphized. This defines a threshold condition for the damage. In the present paper the quantum mechanical probability of photo induced diffusion jumps is found, as well as the critical parameters of the laser field. Estimates for these parameters resulted in realistic values, thus the suggested scenario can play an essential role in optical damage.

Citation Download Citation

Vladimir N. Strekalov "Absorption of laser light by ions as a mechanism of optical damage in solids", Proc. SPIE 3244, Laser-Induced Damage in Optical Materials: 1997, (20 April 1998); https://doi.org/10.1117/12.306986

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