Influence of pretilt angle on disclination lines of liquid crystal lens

Chia Hao Kuo, Wei Che Chien, Chia Ting Hsieh, Chi Yen Huang, Jyun Jie Jiang, Yan Cheng Li, Ming Fei Chen, Yi Ping Hsieh, Hui Lung Kuo, Chi Huang Lin

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Abstract

This article investigates the effect of pretilt angle on disclination lines of liquid crystal (LC) lenses. When the pretilt angle of LCs is higher than 7°, the disclination lines are reduced and are moved to the boundary of the LC lens. The disclination lines at the boundary do not influence the focused beam profile of the LC lens. As the pretilt angle of LCs further increases, the disclination lines at the boundary become almost invisible. However, the interference rings become asymmetrical. The response time of an LC lens with a pretilt angle higher than 7° is ~60% of the conventionally homogeneous LC lens. This value is a result of the decrease in the rotation angle of the LCs and the reduced disclination lines.

Original languageEnglish
Pages (from-to)4269-4274
Number of pages6
JournalApplied Optics
Volume51
Issue number19
DOIs
Publication statusPublished - 2012 Jul 1

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Cite this

Kuo, C. H., Chien, W. C., Hsieh, C. T., Huang, C. Y., Jiang, J. J., Li, Y. C., Chen, M. F., Hsieh, Y. P., Kuo, H. L., & Lin, C. H. (2012). Influence of pretilt angle on disclination lines of liquid crystal lens. Applied Optics, 51(19), 4269-4274. https://doi.org/10.1364/AO.51.004269