Paper Title:
Tunable Optical Filter with Variable Bandwidth Based on Cholesteric Liquid Crystal
  Abstract

An optical tunable filter with variable bandwidth has been demonstrated using two cholesteric liquid crystals. The incident light was first reflected by the first cholesteric liquid crystal and then by the second one. By rotating the two cholesteric liquid crystals simultaneously, the central wavelength can be tuned. By fixing one of the cholesteric liquid crystals and rotating the other one, the bandwidth of the tunable filter can be varied. The central wavelength of the tunable optical filter can be tuned from 513.4 nm to 576.8 nm and the bandwidth is varied from 10 nm to 80 nm. This property will allow it to be widely used in many fields, including optical communications and multispectral and hyperspectral imaging systems.

  Info
Periodical
Solid State Phenomena (Volumes 181-182)
Chapter
IV. Applications of Liquid Crystals
Edited by
Yuan Ming Huang
Pages
273-276
DOI
10.4028/www.scientific.net/SSP.181-182.273
Citation
S. C. Zhang, Y. H. Huang, "Tunable Optical Filter with Variable Bandwidth Based on Cholesteric Liquid Crystal", Solid State Phenomena, Vols. 181-182, pp. 273-276, 2012
Online since
November 2011
Export
Price
$32.00
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