Laser luminescent polarization microscopy of defects induced in lithium fluoride crystals by femtosecond pulses

We propose a spatial statistical model, based on the model of moving foci, of distribution of aggregate centers and other final products of reactions after the passage of a femtosecond laser pulse in a lithium fluoride crystal. Concentration of these defects grows higher on the way from the peripher...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2018-11, Vol.1115 (5), p.52028
Main Authors: Dresvyanskiy, V P, Zilov, S A, Kuznetsov, A V, Enkhbat, S, Bukhtsooj, O, Martynovich, E F
Format: Article
Language:English
Subjects:
Color centers
Crystal defects
Dislocation loops
Femtosecond pulses
Fluorides
Lattice vacancies
Lithium
Lithium fluoride
Microscopy
Polarization
Scanning microscopy
Statistical models
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We propose a spatial statistical model, based on the model of moving foci, of distribution of aggregate centers and other final products of reactions after the passage of a femtosecond laser pulse in a lithium fluoride crystal. Concentration of these defects grows higher on the way from the periphery to the center of filament trace. This model was confirmed experimentally with use of polarization confocal luminescence scanning microscopy method. The research results showed that the periphery of the filament trace is filled predominantly with stable F centers, the region closer to the filament trace center - with F2 - color centers, F3 + centers appear with the increasing concentration of anionic vacancies as the distance to the center of the filament trace decreases on the way to the filament trace center. Strongly damaged lattice area containing colloidal lithium particles and dislocation loops is located in the filament trace center itself.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1115/5/052028