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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 1 — Jan. 1, 1989
  • pp: 48–52

Design of a liquid crystal based tunable electrooptic filter

Shin-Tson Wu  »View Author Affiliations


Applied Optics, Vol. 28, Issue 1, pp. 48-52 (1989)
http://dx.doi.org/10.1364/AO.28.000048


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Abstract

Procedures for designing a tunable liquid crystal (LC) electrooptic filter are illustrated. Selective filtering of one of the two mixed laser lines is used as an example for calculation. It is demonstrated that a LC filter can select a desired beam to pass while rejecting the other one, or vice versa, by switching the voltage biased on the LC cell. The switching times are determined by the liquid crystal properties, thickness, and biased voltage. A multilayered structure is proposed to improve the response times and power loading capability.

© 1989 Optical Society of America

History
Original Manuscript: April 18, 1988
Published: January 1, 1989

Citation
Shin-Tson Wu, "Design of a liquid crystal based tunable electrooptic filter," Appl. Opt. 28, 48-52 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-1-48


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References

  1. D. A. Pinnow, R. L. Abrams, J. F. Lotspeich, “Electro-optic Tunable Optical Filter,” U.S. Patent4,197,008 (1980).
  2. H. A. Tarry, “Electrically Tunable Narrowband Optical Filter,” Electron. Lett. 11, 471 (1975). [CrossRef]
  3. W. I. Kaye, “Liquid Crystal Tuned Birefringent Filter,” U.S. Patent4,394,069 (1983).
  4. S. T. Wu, “Birefringence Dispersions of Liquid Crystals,” Phys. Rev. A 33, 1270 (1986). [CrossRef] [PubMed]
  5. F. J. Kahn, “Electric-Field-Induced Orientational Deformation of Nematic Liquid Crystals: Tunable Birefringence,” Appl. Phys. Lett. 20, 199 (1972). [CrossRef]
  6. M. Born, E. Wolf, Principles of Optics (Pergamon, New York, 1980).
  7. V. G. Chigrinov, M. F. Grebenkin, “Determination of the Elastic Constants and Coefficient of Viscosity of Nematic Liquid Crystals from Oriented Electro-optical Effects,” Sov. Phys. Crystallogr. 20, 747 (1976).
  8. S. T. Wu, U. Efron, L. D. Hess, “Birefringence Measurements of Liquid Crystals,” Appl. Opt. 23, 3911 (1984). [CrossRef] [PubMed]
  9. S. T. Wu, “Infrared Properties of Liquid Crystals: an Overview,” Opt. Eng. 26, 120 (1987). [CrossRef]
  10. For example, see L. M. Blinov, Electro-optical and Magneto-optical Effects of Liquid Crystals (Wiley, New York, 1983).
  11. N. V. Tabiryan, A. V. Sukhov, B. Ya. Zel’dovich, “The Orientational Optical Nonlinearity of Liquid Crystals,” Mol. Cryst. Liq. Cryst. 136, 1 (1986). [CrossRef]
  12. I. C. Khoo, Y. R. Shen, “Liquid Crystals: Nonlinear Optical Properties and Processes,” Opt. Eng. 24, 579 (1985).
  13. P. G. deGennes, The Physics of Liquid Crystals (Clarendon, Oxford, 1974).
  14. S. T. Wu, K. C. Lim, “Absorption and Scattering Measurements of Nematic Liquid Crystals,” Appl. Opt. 26, 1722 (1987). [CrossRef] [PubMed]

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