High laser damage threshold reflective optically addressed liquid crystal light valve based on gallium nitride conductive electrodes

Zhibo Xing; Wei Fan; Dajie Huang; He Cheng; Tongyao Du

doi:10.1017/hpl.2022.21

Journals >High Power Laser Science and Engineering >Volume 10 >Issue 6 >Page 06000e35 > Article

High Power Laser Science and Engineering
Vol. 10, Issue 6, 06000e35 (2022)

High laser damage threshold reflective optically addressed liquid crystal light valve based on gallium nitride conductive electrodes

Zhibo Xing^1、2, Wei Fan^1、2、*, Dajie Huang¹, He Cheng¹, and Tongyao Du¹

Author Affiliations

¹National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China

²Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China

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DOI: 10.1017/hpl.2022.21 Cite this Article Set citation alerts

Zhibo Xing, Wei Fan, Dajie Huang, He Cheng, Tongyao Du. High laser damage threshold reflective optically addressed liquid crystal light valve based on gallium nitride conductive electrodes[J]. High Power Laser Science and Engineering, 2022, 10(6): 06000e35 Copy Citation Text

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Abstract

In this paper, the feasibility of a high laser damage threshold liquid crystal spatial light modulator based on gallium nitride (GaN) transparent conductive electrodes is proved. The laser-induced damage threshold (LIDT) is measured, and a high LIDT reflective optically addressed liquid crystal light valve (OALCLV) based on GaN is designed and fabricated. The proper work mode of the OALCLV is determined; the OALCLV obtained a maximum reflectivity of about 55% and an on–off ratio of 55:1, and an image response is demonstrated.

Keywords

gallium nitride laser-induced damage threshold liquid crystal optically addressed liquid crystal light valve

$$\begin{align}{V}_{\mathrm{LC}}={V}_{\mathrm{AC}}\cdot \frac{\frac{1}{R_0}+\frac{1}{R_{\Phi}}+ j\omega {C}_{\mathrm{BSO}}+\frac{j\omega {C}_1}{1+ j\omega {R}_1{C}_1}}{\frac{1}{R_0}+\frac{1}{R_{\Phi}}+ j\omega {C}_{\mathrm{BSO}}+\frac{j\omega {C}_1}{1+ j\omega {R}_1{C}_1}+\frac{1}{R_{\mathrm{LC}}}+ j\omega {C}_{\mathrm{LC}}},\end{align}$$

((1))