Abstract

The evolution of optical discharge induced in the volume of transparent dielectric by a focused fs laser pulse is studied under condition of ionization instability that results in deep small-scale periodic modulation of breakdown plasma parameters in the direction of laser polarization. Laser pulse intensity range is found where the instability evolving from very small seed perturbations leads to formation of the contrast subwavelength periodic structure containing narrow zones with overcritical plasma density and enhanced energy deposition. The latter allows considering this structure as underlying the nanograting formation observed experimentally in the fused silica irradiated by series of repeated fs pulses.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Formation of nanogratings in a transparent material with tunable ionization property by femtosecond laser irradiation

Fadhil A. Umran, Yang Liao, Mazin M. Elias, Koji Sugioka, Razvan Stoian, Guanghua Cheng, and Ya Cheng
Opt. Express 21(13) 15259-15267 (2013)

Pulsed laser modification of transparent dielectrics: what can be foreseen and predicted by numerical simulations?

Nadezhda M. Bulgakova, Vladimir P. Zhukov, Yuri P. Meshcheryakov, Laura Gemini, Jan Brajer, Danijela Rostohar, and Tomas Mocek
J. Opt. Soc. Am. B 31(11) C8-C14 (2014)

Observation of O2 inside voids formed in GeO2 glass by tightly-focused fs-laser pulses

Lena Bressel, Dominique de Ligny, Eugene G. Gamaly, Andrei V. Rode, and Saulius Juodkazis
Opt. Mater. Express 1(6) 1150-1158 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (9)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription