Laser Ablation in CdZnTe Crystal due to Thermal Self-Focusing: Secondary Phase Hydrodynamic Expansion
Applied Surface Science 2016
Artūrs Medvids, Aleksandrs Mičko, Edvīns Daukšta, Volodimir Kosyak, Līga Orlova

The present paper deals with the laser ablation in CdZnTe crystal irradiated by pulsed infrared laser. Two values of threshold intensities of the laser ablation were determined, namely of about 8.5 and 6.2 MW/cm2 for the incident and the rear surfaces, correspondingly. Lower intensity of the laser ablation for the rear surface is explained by thermal self-focusing of the laser beam in the CdZnTe crystal due to heating of Te inclusions with a following hydrodynamic expansion.


Keywords
CdZnTe crystal; Laser ablation; Raman spectroscopy; Self-focusing;Te inclusions
DOI
10.1016/j.apsusc.2015.09.225
Hyperlink
http://www.sciencedirect.com/science/article/pii/S0169433215023569

Medvids, A., Mičko, A., Daukšta, E., Kosyak, V., Grase, L. Laser Ablation in CdZnTe Crystal due to Thermal Self-Focusing: Secondary Phase Hydrodynamic Expansion. Applied Surface Science, 2016, Vol.374, pp.77-80. ISSN 0169-4332. Available from: doi:10.1016/j.apsusc.2015.09.225

Publication language
English (en)
The Scientific Library of the Riga Technical University.
E-mail: uzzinas@rtu.lv; Phone: +371 28399196