CUED Publications database

Pixel-level fringing-effect model to describe the phase profile and diffraction efficiency of a liquid crystal on silicon device.

Lu, T and Pivnenko, M and Robertson, B and Chu, D (2015) Pixel-level fringing-effect model to describe the phase profile and diffraction efficiency of a liquid crystal on silicon device. Appl Opt, 54. pp. 5903-5910.

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Abstract

We propose a fringing-effect model based on the experimentally measured phase response across the phase transition region of a liquid crystal on silicon (LCOS) device. The measured phase profile in the phase transition region is characterized by a scaled error function of the flyback width. The flyback width can be determined by a cubic function of the phase depth between neighboring pixels. This dependence of the flyback width on the phase depth is explained by a linear rotation model of the liquid crystal director. The simulated diffraction efficiency based on the fringing-effect model shows a close agreement with the experimental measurement.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:42
Last Modified: 14 Sep 2017 01:27
DOI: