Fabrication of Nanogratings and Rewriting of Birefringent Structures in Nanoporous Glass

— The dynamics of the variation in the structure of laser-induced birefringent regions in nanoporous glass have been studied in relation to the number of writing femtosecond laser pulses. We have detected transformation of an elliptical cavity elongated across the writing laser beam polarization int...

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Bibliographic Details
Published in:	Inorganic materials Vol. 59; no. 6; pp. 649 - 653
Main Authors:	Fedotov, S. S., Lipatiev, A. S., Lipatieva, T. O., Mikhailov, Yu. V., Lotarev, S. V., Glebov, I. S., Sigaev, V. N.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-06-2023 Springer Nature B.V
Subjects:	Birefringence Chemistry Chemistry and Materials Science Data storage Femtosecond pulsed lasers Femtosecond pulses Industrial Chemistry/Chemical Engineering Inorganic Chemistry Laser beams Materials Science Silica glass laser micromachining form birefringence nanoporous glass femtosecond laser
Online Access:	Get full text
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Summary:	— The dynamics of the variation in the structure of laser-induced birefringent regions in nanoporous glass have been studied in relation to the number of writing femtosecond laser pulses. We have detected transformation of an elliptical cavity elongated across the writing laser beam polarization into a birefringent nanograting, accompanied by an increase in retardance. The feasibility of rewriting such structures by changing the orientation of their slow axis of birefringence has been demonstrated, which suggests that high-silica nanoporous glasses are potentially attractive for use as data storage media, with the possibility of rewriting.
ISSN:	0020-1685 1608-3172
DOI:	10.1134/S0020168523060067