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  • Vol. 19, Iss. 21 — Nov. 1, 1994
  • pp: 1723–1725

Observation of orientational photorefractive effects in nematic liquid crystals

C. Khoo, H. Li, and Y. Liang  »View Author Affiliations


Optics Letters, Vol. 19, Issue 21, pp. 1723-1725 (1994)
http://dx.doi.org/10.1364/OL.19.001723


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Abstract

We report the observation of nonlinear photorefraction in pure aligned nematic liquid crystals in the presence of an applied dc electric field. The effect is attributed to nematic axis reorientation created by the photoinduced space-charge field in combination with the applied dc field. Strong optical nonlinearity, self-diffraction, and beam-coupling effects are observed.

© 1994 Optical Society of America

History
Original Manuscript: June 6, 1994
Published: November 1, 1994

Citation
C. Khoo, H. Li, and Y. Liang, "Observation of orientational photorefractive effects in nematic liquid crystals," Opt. Lett. 19, 1723-1725 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-21-1723


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References

  1. See, for example,P. Günter, J. P. Huignard, eds., PhotorefractiveM aterials and Their Applications (Springer-Verlag, Berlin, 1989), Vols. 1 and 2.
  2. R. S. Cudney, R. M. Pierce, G. D. Bacher, D. Mahgerefteh, J. Feinberg, J. Opt. Soc. Am. B 9, 1704 (1992); R. S. Cudney, G. D. Bacher, R. M. Pierce, J. Feinberg, Opt. Lett. 17,67 (1992). [CrossRef] [PubMed]
  3. N. Kukhtarev, G. Dovgalenko, G. C. Duree, G. J. Salamo, E. J. Sharp, B. A. Wechsler, M. B. Klein, Phys. Rev. Lett. 71,4330 (1993). [CrossRef] [PubMed]
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  5. Y. Zhang, Y. Cui, P. N. Prasad, Phys. Rev. B 46, 9900 (1992); Y. Cui, Y. Zhang, P. N. Prasad, J. S. Schildkraut, D. J. Williams, Appl. Phys. Lett. 61, 2132 (1992). [CrossRef]
  6. I. C. Khoo, in Progress in Optics, E. Wolf, ed. (North-Holland, Amsterdam, 1988), Vol. 26, p. 107I. C. Khoo, S. T. Wu, Optics and Nonlinear Optics of Liquid Crystals (World Scientific, Singapore, 1993)I. C. Khoo, Liquid Crystals: Physical Properties and Nonlinear Optical Phenomena (Wiley Interscience, New York, 1994). [CrossRef]
  7. A. G. Cheng, D. J. Brady, Opt. Lett. 17, 441 (1992); I. C. Khoo, H. Li, P. G. LoPresti, Yu Liang, Opt. Lett. 19, 530 (1994). [CrossRef] [PubMed]
  8. W. Helfrich, J. Chem. Phys. 51, 4092 (1969); P. G. DeGennes, The Physics of Liquid Crystals (Clarendon, Oxford, 1975), Chap. 5, p. 190. [CrossRef]
  9. I. C. Khoo, T. H. Liu, Phys. Rev. A 39, 4036 (1989). [CrossRef] [PubMed]

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