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Transmissive flexoelectro-optic liquid crystal optical phase modulator with 2 π modulation

Wang, Xiuze; Fells, Julian A. J.; Ali, Taimoor; Lin, Jia De; Welch, Chris; Mehl, Georg H.; Wilkinson, Timothy D.; Booth, Martin J.; Morris, Stephen M.; Elston, Steve J.


Xiuze Wang

Julian A. J. Fells

Taimoor Ali

Jia De Lin

Chris Welch

Timothy D. Wilkinson

Martin J. Booth

Stephen M. Morris

Steve J. Elston


© 2020 Author(s). In this paper, we demonstrate analog phase modulation in a transmissive configuration using the flexoelectro-optic effect in short-pitch chiral nematic liquid crystal (LC) devices. Two different modes are considered, both of which are shown to generate full 2πphase modulation at 1 kHz switching frequency. The first configuration that is considered consists of a half-wave plate that is placed between two flexoelectro-optic LC devices that are subjected to electric fields that are applied in phase. Second, we demonstrate that a similar phase modulation response can be observed by removing the half-wave plate and subjecting the two flexoelectro-optic LC devices to electric fields whereby the polarities are out of phase. Both configurations demonstrated herein are promising for the development of next-generation LC spatial light modulators, particularly when reflective geometries are challenging or impractical.


Wang, X., Fells, J. A. J., Ali, T., Lin, J. D., Welch, C., Mehl, G. H., …Elston, S. J. (2020). Transmissive flexoelectro-optic liquid crystal optical phase modulator with 2 π modulation. AIP Advances, 10(5),

Journal Article Type Article
Acceptance Date Apr 22, 2020
Online Publication Date May 8, 2020
Publication Date 2020-05
Deposit Date May 27, 2020
Publicly Available Date May 27, 2020
Journal AIP Advances
Print ISSN 2158-3226
Electronic ISSN 2158-3226
Publisher AIP Publishing
Peer Reviewed Peer Reviewed
Volume 10
Issue 5
Article Number 055011
Keywords General Physics and Astronomy
Public URL
Publisher URL
Additional Information Received: 2020-04-01; Accepted: 2020-04-22; Published: 2020-05-08


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Copyright Statement
© 2020 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license

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