Changing of optical absorption and scattering coefficients in nonlinear-optical crystal lithium triborate before and after interaction with UV-radiation

Artem S. Demkin; Dmitriy G. Nikitin; Oleg A. Ryabushkin

doi:10.1117/12.2227789

27 April 2016 Changing of optical absorption and scattering coefficients in nonlinear-optical crystal lithium triborate before and after interaction with UV-radiation

Artem S. Demkin, Dmitriy G. Nikitin, Oleg A. Ryabushkin

Author Affiliations +

Proceedings Volume 9894, Nonlinear Optics and its Applications IV; 98941U (2016) https://doi.org/10.1117/12.2227789
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

In current work optical properties of LiB₃O₅ (LBO) crystal with ultraviolet (UV) (λ= 266 nm) induced volume macroscopic defect (track) are investigated using novel piezoelectric resonance laser calorimetry technique. Pulsed laser radiation of 10 W average power at 532 nm wavelength, is consecutively focused into spatial regions with and without optical defect. For these cases exponential fitting of crystal temperature kinetics measured during its irradiation gives different optical absorption coefficients α₁ = 8.1 • 10^-4 cm^-1 (region with defect) and α =3.9⋅10⁻⁴ cm^-1 (non-defected region). Optical scattering coefficient is determined as the difference between optical absorption coefficients measured for opaque and transparent lateral facets of the crystal respectively. Measurements reveal that scattering coefficient of LBO in the region with defect is three times higher than the optical absorption coefficient.

Citation Download Citation

Artem S. Demkin, Dmitriy G. Nikitin, and Oleg A. Ryabushkin "Changing of optical absorption and scattering coefficients in nonlinear-optical crystal lithium triborate before and after interaction with UV-radiation", Proc. SPIE 9894, Nonlinear Optics and its Applications IV, 98941U (27 April 2016); https://doi.org/10.1117/12.2227789

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