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

Jisoo Hwang; N. Y. Ha; H. J. Chang; Byoungchoo Park; J. W. Wu

doi:10.1364/OL.29.002644

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

Jisoo Hwang, N. Y. Ha, H. J. Chang, Byoungchoo Park, J. W. Wu

Department of Physics

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

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.

Original language	English
Pages (from-to)	2644-2646
Number of pages	3
Journal	Optics Letters
Volume	29
Issue number	22
DOIs	https://doi.org/10.1364/OL.29.002644
State	Published - 15 Nov 2004

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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.",

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AU - Park, Byoungchoo

AU - Wu, J. W.

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N2 - 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.

AB - 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.

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

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