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Volume 4, Issue 4 (Suppl) J Laser Opt Photonics, an open access journal
ISSN: 2469-410X Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8th International Conference and Exhibition on
Lasers, Optics & Photonics
Anti-reflection surface structures on optics as an alternative to thin film anti-reflection coatings
Jesse A Frantz, Lynda E Busse, Darryl A Boyd, Shyam S Bayya, Woohong Kim, Leslie B Shaw and Jasbider S Sanghera
US Naval Research Laboratory, USA
Anti-reflection surface structures (ARSS) are nano-scale features patterned directly into an optical surface that are designed to
have low optical reflectance. They have been demonstrated to increase the transmission of an optical surface to >99.9% and
are an attractive alternative to traditional thin film anti reflection (AR) coatings for several reasons. They provide AR performance
over a larger spectral and angular range and unlike thin film AR coatings, they are patterned directly into the optic rather than
deposited on its surface. As a result, they are not prone to delamination under thermal cycling that can occur with thin film coatings
and their laser damage thresholds can be considerably higher. In this presentation, we summarize results for ARSS on a variety of
optical materials including silica, germanium, magnesium aluminate spinel and a variety of laser crystals. We discuss scale-up of the
technique and describe results for ARSS with dimensions as large as 33 cm. We describe a surface modification procedure that results
in a superhydrophobic surface without a significant decrease in transmittance. Finally, we show results for optical performance of
ARSS on silica windows following sand and rain erosion testing showing that they are suitable for use in harsh environments.
Biography
Jesse A Frantz has received his PhD in Optical Sciences in 2004 from the Optical Sciences Center at The University of Arizona. He has been working as a Research
Physicist at NRL since 2004 where his research is focused on microstructured optical surfaces and novel thin film materials. He established and manages a Vacuum
Deposition Cluster System Facility in NRL’s Optical Sciences Division used for a variety of projects including the fabrication of advanced, multi-layer thin film devices for
optical applications.
Jesse A Frantz et al., J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017