Xiuze Wang
A Compact Full 2π Flexoelectro‐Optic Liquid Crystal Phase Modulator
Wang, Xiuze; Fells, Julian A. J.; Shi, Yuping; Ali, Taimoor; Welch, Chris; Mehl, Georg H.; Wilkinson, Timothy D.; Booth, Martin J.; Morris, Stephen M.; Elston, Steve J.
Authors
Julian A. J. Fells
Yuping Shi
Taimoor Ali
Chris Welch
Georg H. Mehl
Timothy D. Wilkinson
Martin J. Booth
Stephen M. Morris
Steve J. Elston
Abstract
Wavefront shaping, which is often achieved using liquid crystal (LC) spatial light modulators, is particularly important for a wide range of applications including laser microfabrication and micromanipulation, microscopy, and quantum optics. In this work, results are presented for the first integrated LC phase modulator that combines a flexoelectro‐optic LC layer (that behaves as a switchable λ/2 waveplate) with a polymerized reactive mesogen layer (which acts as a λ/4 waveplate) and a mirrored substrate that creates a double‐pass geometry. For a flexoelectro‐optic LC layer that exhibits switching angles of ±45° at a voltage of ±85 V a full 2π phase modulation is observed when driven by a 1 kHz waveform. Experimental results are also compared with modeling using Jones calculus of the amplitude and phase variation when the LC and the polymer layer deviate from their desired waveplate conditions. The development and demonstration of an integrated device is particularly significant for applications where size and cost are critical factors such as in LiDAR for the Space and Automotive industries, respectively.
Citation
Wang, X., Fells, J. A. J., Shi, Y., Ali, T., Welch, C., Mehl, G. H., Wilkinson, T. D., Booth, M. J., Morris, S. M., & Elston, S. J. (2020). A Compact Full 2π Flexoelectro‐Optic Liquid Crystal Phase Modulator. Advanced Materials Technologies, 5(12), Article 2000589. https://doi.org/10.1002/admt.202000589
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 22, 2020 |
Online Publication Date | Nov 9, 2020 |
Publication Date | 2020-12 |
Deposit Date | Nov 15, 2020 |
Publicly Available Date | Nov 16, 2020 |
Journal | Advanced Materials Technologies |
Print ISSN | 2365-709X |
Electronic ISSN | 2365-709X |
Publisher | Wiley |
Peer Reviewed | Peer Reviewed |
Volume | 5 |
Issue | 12 |
Article Number | 2000589 |
DOI | https://doi.org/10.1002/admt.202000589 |
Keywords | Chiral nematic liquid crystal; Flexoelectricity; Phase modulator; Spatial light modulator |
Public URL | https://hull-repository.worktribe.com/output/3661383 |
Publisher URL | https://onlinelibrary.wiley.com/doi/10.1002/admt.202000589 |
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Copyright Statement
© 2020 The Authors. Advanced Materials Technologies published by Wiley‐VCH GmbH
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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