Title

Dual-Frequency Addressed Infrared Liquid Crystal Phase Modulators With Submillisecond Response Time

Keywords

Dual frequency addressing; Fast response time; Finite element method; Liquid crystal devices

Abstract

Dynamic response of a dual-frequency liquid crystal (DFLC) based near infrared phase modulator is investigated through numerical simulations and experiments. The relationships between the optical response times and various voltage driving conditions are studied. An optical phase retarder operating at 1.55 m wavelength is demonstrated by using our homemade high figure-of-merit DFLC mixture. To improve the response time, both dual- frequency addressing and high voltage overdrive methods are employed. The obtained optical rising and decay times are reduced to less than 0.5 ms for a 2 phase change. The optical transition curves simulated with finite element method show good agreement with our experimental results.

Publication Date

9-1-2006

Publication Title

Molecular Crystals and Liquid Crystals

Volume

454

Issue

1

Number of Pages

123/[525]-133/[535]

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/15421400600654256

Socpus ID

33745629323 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33745629323

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