Single Beam Measurements of a Sony SVGA Liquid Crystal Spatial light modulator

Abstract

In this work, non-linear optical properties of a Sony SVGA liquid crystal spatial light modulator sample are estimated by utilizing a single beam Z-scan technique with He-Ne laser at 632.8 nm. It was found that the magnitude of non-linear refractive index (NLR) is (0.694×10 -7 cm 2 /mW) with a positive signal, demonstrates a self-focusing phenomenon, while the magnitude of non-linear absorption (NLA) for this sample is (0.0101×10 -1 cm/mW), the pure magnitude of the NLR is (0.138×10 -5 cm 2 /mW). These results are compared with past investigations in various liquid crystals types. The obtained results showed that the sample have a high ability of originating optical limiters, switches, and modulation gadgets.

High optical correction system based 800x600 analog spatial light modulator

“…It is a key optical component for high-precision displays, sensing, and telecommunication [6]. The SLM has a positive nonlinearity due to it self-focusing, high sensitivity and very low absorption at high intensity imaging [7]. Liquid crystal (LC) cells of the SLM are prepared in two-dimensional arrangements, and developed in a way that forms cells in discrete addressing.…”