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Optics Letters

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  • Vol. 36, Iss. 18 — Sep. 15, 2011
  • pp: 3608–3610

Improvement of the switching frequency of a liquid-crystal spatial light modulator with optimal cell gap

Zenghui Peng, Yonggang Liu, Lishuang Yao, Zhaoliang Cao, Quanquan Mu, Lifa Hu, and Li Xuan  »View Author Affiliations


Optics Letters, Vol. 36, Issue 18, pp. 3608-3610 (2011)
http://dx.doi.org/10.1364/OL.36.003608


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Abstract

In the application of a nematic liquid-crystal (LC) spatial light modulator, we derived the formula of retardation dynamic response of the device by solving the Erickson–Leslie equation. Then, the response time of the 2 π phase change can be expressed as a function of the LC cell gap. The theoretical and experimental results all indicate that the response time of 2 π first decreases and then increases with the LC cell gap increasing, and there is an optimal cell gap to obtain the shortest response time. Therefore, the method of optimizing the cell gap shows potential to improve the switching frequency for all type of nematic LC optical device with specific modulation quantity.

© 2011 Optical Society of America

OCIS Codes
(230.3720) Optical devices : Liquid-crystal devices
(230.4110) Optical devices : Modulators
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Optical Devices

History
Original Manuscript: July 28, 2011
Manuscript Accepted: August 4, 2011
Published: September 13, 2011

Citation
Zenghui Peng, Yonggang Liu, Lishuang Yao, Zhaoliang Cao, Quanquan Mu, Lifa Hu, and Li Xuan, "Improvement of the switching frequency of a liquid-crystal spatial light modulator with optimal cell gap," Opt. Lett. 36, 3608-3610 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-18-3608


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