One-dimensional equivalent circuit simulation of a photodiode-based spatial light modulator

Author

Sayyah, Keyvan

Author_Institution

Hughes Res. Labs., Malibu, CA, USA

Volume

43

Issue

12

fYear

1996

fDate

12/1/1996 12:00:00 AM

Firstpage

2101

Lastpage

2108

Abstract

A one-dimensional (1-D) equivalent circuit model for an optically addressed, photodiode-based spatial light modulator (SLM) is presented. The model is first verified for a liquid crystal (LC)-based SLM via a 1-D experimental version of the device followed by a detail simulation using SPICE. It was found that the optical performance of the LC-SLM was most sensitive to the liquid crystal thickness, substrate doping concentration, and the photodiode leakage current. This model can be a useful tool for the analysis of the optical performance (such as photosensitivity and image uniformity) of a variety of photodiode-based SLMs as a function of their structural and operating parameters

Keywords

equivalent circuits; liquid crystal devices; photodiodes; spatial light modulators; SPICE simulation; image uniformity; leakage current; liquid crystal light valve; one-dimensional equivalent circuit model; optically addressed SLM; photodiode-based spatial light modulator; photosensitivity; substrate doping; Circuit simulation; Doping; Equivalent circuits; Liquid crystal devices; Liquid crystals; Optical modulation; Optical sensors; Photodiodes; SPICE; Semiconductor process modeling;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.544380

Filename

544380