UV Durable LCOS for Laser Processing

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 pr...

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Bibliographic Details
Main Authors: Yasuki Sakurai, Masashi Nishitateno, Masahiro Ito, Kohki Takatoh
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/11/9/1047
Description
Summary: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/cm<sup>2</sup> illumination at 355 nm. We investigated the durability of polymerization inhibitor mixed liquid crystal in order to extend its lifetime.
ISSN:2073-4352