Abstract

We report on the fabrication of laser-induced periodic surface structures in Cr films upon high repetition rate fs laser irradiation (up to 1 MHz, 500 fs, 1030 nm), employing beam scanning. Highly regular large-area (9cm2) gratings with a relative diffraction efficiency of 42% can be produced within less than 6 min. The ripple period at moderate and high fluences is 0.9 μm, with a small period of 0.5 μm appearing at lower energies. The role of the irradiation parameters on the characteristics of the laser-induced periodic surface structures (LIPSS) is studied and discussed in the frame of the models presently used. We have identified the polarization vector orientation with respect to the scan direction as a key parameter for the fabrication of high-quality, large-area LIPSS, which, for perpendicular orientation, allows the coherent extension of the sub-wavelength structure over macroscopic distances. The processing strategy is robust in terms of broad parameter windows and applicable to other materials featuring LIPSS.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Controlled nanostructrures formation by ultra fast laser pulses for color marking

B. Dusser, Z. Sagan, H. Soder, N. Faure, J.P. Colombier, M. Jourlin, and E. Audouard
Opt. Express 18(3) 2913-2924 (2010)

Experimental study of fs-laser induced sub-100-nm periodic surface structures on titanium

Chandra S.R. Nathala, Ali Ajami, Andrey A. Ionin, Sergey I. Kudryashov, Sergey V Makarov, Thomas Ganz, Andreas Assion, and Wolfgang Husinsky
Opt. Express 23(5) 5915-5929 (2015)

Femtosecond laser direct writing of large-area two-dimensional metallic photonic crystal structures on tungsten surfaces

Hongzhen Qiao, Jianjun Yang, Fei Wang, Yang Yang, and Julong Sun
Opt. Express 23(20) 26617-26627 (2015)

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 (5)

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 (1)

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