Abstract

We investigate laser ablation of crystalline silicon induced by a femtosecond optical vortex beam, addressing how beam properties can be obtained by analyzing the ablation crater. The morphology of the surface structures formed in the annular crater surface allows direct visualization of the beam polarization, while analysis of the crater size provides beam spot parameters. We also determine the diverse threshold fluences for the formation of various complex microstructures generated within the annular laser spot on the silicon sample. Our analysis indicates an incubation behavior of the threshold fluence as a function of the number of laser pulses, independent of the optical vortex polarization, in weak focusing conditions.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
On the generation of grooves on crystalline silicon irradiated by femtosecond laser pulses

Shutong He, Jijil JJ Nivas, Antonio Vecchione, Minglie Hu, and Salvatore Amoruso
Opt. Express 24(4) 3238-3247 (2016)

Effects of ambient air pressure on surface structures produced by ultrashort laser pulse irradiation

J. JJ Nivas, F. Gesuele, E. Allahyari, S. L. Oscurato, R. Fittipaldi, A. Vecchione, R. Bruzzese, and S. Amoruso
Opt. Lett. 42(14) 2710-2713 (2017)

Polarization-dependent elliptical crater morphologies formed on a silicon surface by single-shot femtosecond laser ablation

Xu Ji, Lan Jiang, Xiaowei Li, Weina Han, Yang Liu, Qiang Huang, and Yongfeng Lu
Appl. Opt. 53(29) 6742-6748 (2014)

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 (6)

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 (4)

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