UV Durable LCOS for Laser Processing

Yasuki Sakurai; Masashi Nishitateno; Masahiro Ito; Kohki Takatoh

doi:10.3390/cryst11091047

Crystals (Aug 2021)

UV Durable LCOS for Laser Processing

Yasuki Sakurai,
Masashi Nishitateno,
Masahiro Ito,
Kohki Takatoh

Affiliations

Yasuki Sakurai: SANTEC CORPORATION, 5823 Ohkusa-Nenjozaka, Komaki 485-0802, Japan
Masashi Nishitateno: SANTEC CORPORATION, 5823 Ohkusa-Nenjozaka, Komaki 485-0802, Japan
Masahiro Ito: Department of Electrical Engineering, Faculty of Engineering, Sanyo-Onoda City University, Yamaguchi 756-0884, Japan
Kohki Takatoh: Department of Electrical Engineering, Faculty of Engineering, Sanyo-Onoda City University, Yamaguchi 756-0884, Japan

DOI: https://doi.org/10.3390/cryst11091047
Journal volume & issue: Vol. 11, no. 9
p. 1047

Abstract

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Liquid-Crystal-On-Silicon (LCOS) Spatial Light Modulator (SLM) is widely used as a programmable adaptive optical element in many laser processing applications with various wavelength light sources. We report UV durable liquid-crystal-on-silicon spatial light modulators for one-shot laser material processing. Newly developed LCOS consists of UV transparent materials and shows a lifetime 480 times longer than the conventional one in 9.7 W/cm2 illumination at 355 nm. We investigated the durability of polymerization inhibitor mixed liquid crystal in order to extend its lifetime.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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