Title

Fast-Response Infrared Ferroelectric Liquid Crystal Phase Modulators

Keywords

Alignment breaking effect; Ferroelectric liquid crystal; IR application; Phase modulation; Vertical alignment

Abstract

A high speed phase modulator based on ferroelectric liquid crystal (FLC) is demonstrated. For uniform alignment and pure phase modulation, we propose a new FLC device using a short helical pitch material in a homeotropic alignment. This device is driven by periodic in-plane electrode stripes implemented on the surface of both cell substrates. As a result, we have obtained a large phase modulation (about 2.3 at λ = 1.55 m under E = 2.5 V/m) and fast response time (<μsec). Together with the performance characterization of our device, we discuss the alignment breaking effect which occurs near the edges of operating region.

Publication Date

9-1-2006

Publication Title

Molecular Crystals and Liquid Crystals

Volume

453

Issue

1

Number of Pages

343-354

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/15421400600653886

Socpus ID

33745652326 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33745652326

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