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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 15 — May. 20, 2012
  • pp: 3024–3030

Tunable liquid crystal microlens array using hole patterned electrode structure with ultrathin glass slab

Zhao Xiangjie, Liu Cangli, Zhang Dayong, and Luo Yongquan  »View Author Affiliations


Applied Optics, Vol. 51, Issue 15, pp. 3024-3030 (2012)
http://dx.doi.org/10.1364/AO.51.003024


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Abstract

A configuration of hole patterned electrode liquid crystal microlens array with an ultrathin glass slab was fabricated. To reduce the fringing electric field effect and avoid the occurrence of disclination lines, an ultrathin glass slab was introduced between the patterned electrode and liquid crystal layer. The glass slab thickness played an important role in effecting the optical performance of the liquid crystal microlens array. An optimum thickness of 30 μm was selected employing numerical simulation method. Using this method, we demonstrated a microlens array that greatly improved the phase profile and focus power. The dynamic focal range of the liquid crystal microlens array may extend from <1.2mm to >8mm and the minimum diameter of the focus spot could be as small as 15 µm.

© 2012 Optical Society of America

OCIS Codes
(220.3630) Optical design and fabrication : Lenses
(230.3720) Optical devices : Liquid-crystal devices
(230.3990) Optical devices : Micro-optical devices
(230.4000) Optical devices : Microstructure fabrication

ToC Category:
Optical Devices

History
Original Manuscript: February 13, 2012
Revised Manuscript: March 31, 2012
Manuscript Accepted: April 5, 2012
Published: May 18, 2012

Citation
Zhao Xiangjie, Liu Cangli, Zhang Dayong, and Luo Yongquan, "Tunable liquid crystal microlens array using hole patterned electrode structure with ultrathin glass slab," Appl. Opt. 51, 3024-3030 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-15-3024

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