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Laser Optics & Photonics and Atomic & Plasma Science 2018
J u l y 1 6 - 1 7 , 2 0 1 8
P r a g u e , C z e c h R e p u b l i c
Page 84
American Journal of Computer Science and Information Technology
ISSN: 2349-3917
E u r o S c i C o n J o i n t E v e n t o n
Laser Optics & Photonics and
Atomic & Plasma Science
B
arium titanosilicate glass system is of particular interest for of space-selective laser-induced precipitation of Ba
2
TiSi
2
O8
fresnoite crystals possessing high piezoelectric and pyroelectric properties. Recently, we have investigated the process of
femtosecond laser writing of crystalline tracks in the bulk of 40BaO•20TiO
2
•40SiO
2
(mol %) glass and established the dependence
of crystalline tracks morphology on the laser beam scanning speed and pulse energy. In the present study, we report direct
laser writing of Ba
2
TiSi
2
O8 crystalline tracks by the femtosecond laser beam with an elliptical cross-section of the waist formed
by anamorphic prism pairs as compared to the conventional Gaussian beam. It is found that applying the anamorphic prism
pair allows to increase the maximum laser writing speed enabling homogeneous crystalline track growth. The longitudinal and
transverse cuts of the laser-written crystalline tracks have been investigated by polarized optical microscopy, Raman spectroscopy
and transmission electron microscopy. It is for the first time revealed that the fine annealing of the laser-written crystalline tracks
erases a lot of defects in their structure. These results pave the way to the formation of high-quality crystalline waveguides in
glass and their application in novel photonic and optoelectronic devices.
mois.chem@yandex.ruLaser writing of crystalline tracks in barium
tianosilicate glass by femtosecond laser beam
waist with elliptical cross section
Ivan A Moiseev, Alexey S Lipatiev, Sergey V Lotarev, Tatiana O
Lipateva and Vladimir N Sigaev
Mendeleev University of Chemical Technology of Russia, Russia
Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-003