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Polarization conversion on nanostructured metallic surfaces fabricated by LIPSS
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Paper Abstract

Waveplates modify polarization by generating a phase change. Laser Induced Periodic Surface Structures (LIPSS) have recently started to be studied as waveplates due to the birefringence in-duced by the nanoripples, easily fabricated in a one-step process by laser, where LIPSS morphology is defined by the characteristics of the laser process parameters and the substrate material. The optical properties of these waveplates are defined by LIPSS parameters such as period, depth or width of the ripples. In this work we have deposited thin film coatings on stainless steel samples containing LIPSS for different coating thickness and composition. Results show that thin film coatings are a good candidate for the tunability of LIPSS birefringence since the coating modifies the induced polarization change and reflectivity of the sample depending on coating thickness and composition, as expected from numerical simulations.

Paper Details

Date Published: 22 March 2019
PDF: 9 pages
Proc. SPIE 10906, Laser-based Micro- and Nanoprocessing XIII, 109061H (22 March 2019); doi: 10.1117/12.2506982
Show Author Affiliations
A. San-Blas, CEIT-IK4 (Spain)
Univ. de Navarra (Spain)
N. Casquero, CEIT-IK4 (Spain)
Univ. de Navarra (Spain)
N. Pérez, Univ. de Navarra (Spain)
M. Martínez-Calderon, CEIT-IK4 (Spain)
Univ. de Navarra (Spain)
L. Sanchez-Brea, Univ. Complutense de Madrid (Spain)
J. Buencuerpo, Univ. Complutense de Madrid (Spain)
S. M. Olaizola, CEIT-IK4 (Spain)
Univ. de Navarra (Spain)
A. Rodríguez, CEIT-IK4 (Spain)
Univ. de Navarra (Spain)

Published in SPIE Proceedings Vol. 10906:
Laser-based Micro- and Nanoprocessing XIII
Udo Klotzbach; Akira Watanabe; Rainer Kling, Editor(s)

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