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Optics Letters

Optics Letters

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  • Vol. 29, Iss. 22 — Nov. 15, 2004
  • pp: 2644–2646

Enhanced optical nonlinearity near the photonic bandgap edges of a cholesteric liquid crystal

Jisoo Hwang, N. Y. Ha, H. J. Chang, Byoungchoo Park, and J. W. Wu  »View Author Affiliations


Optics Letters, Vol. 29, Issue 22, pp. 2644-2646 (2004)
http://dx.doi.org/10.1364/OL.29.002644


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Abstract

The third-order Kerr nonlinear optical effect of a one-dimensional photonic bandgap structure of a cholesteric liquid crystal is investigated. In a femtosecond nonlinear transmission measurement, nonlinear optical changes in the bandgap edges are observed. From analysis of the dispersion relation, Kerr nonlinear coefficients of nematics, forming the cholesteric liquid crystal, are found to be enhanced by 1–2 orders of magnitude through the photonic bandgap structure.

© 2004 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials

Citation
Jisoo Hwang, N. Y. Ha, H. J. Chang, Byoungchoo Park, and J. W. Wu, "Enhanced optical nonlinearity near the photonic bandgap edges of a cholesteric liquid crystal," Opt. Lett. 29, 2644-2646 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-22-2644

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