Spectrally resolved third-order nonlinearities in polydiacetylene microcrystals: Influence of particle size

R. Rangel-Rojo, S. Yamada, H. Matsuda, H. Kasai, H. Nakanishi, A. K. Kar, B. S. Wherrett

Research output: Contribution to journalArticle

Abstract

The on- and near-resonant third-order nonlinear optical response of polydiacetylene microcrystals in suspension was studied by the Z-scan technique with tunable picosecond pulses. The absorptive and refractive contributions to the excitonic-dominated nonlinearity were fully resolved at several wavelengths. Microcrystals of two different average sizes were studied, and a comparison of their nonlinear coefficients was made. A three-level model for the nonlinear response is presented that shows good agreement with the experimental data. © 1998 Optical Society of America.

Original languageEnglish
Pages (from-to)2937-2945
Number of pages9
JournalJournal of the Optical Society of America B: Optical Physics
Volume15
Issue number12
Publication statusPublished - Dec 1998

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microcrystals
nonlinearity
picosecond pulses
coefficients
wavelengths

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Rangel-Rojo, R. ; Yamada, S. ; Matsuda, H. ; Kasai, H. ; Nakanishi, H. ; Kar, A. K. ; Wherrett, B. S. / Spectrally resolved third-order nonlinearities in polydiacetylene microcrystals : Influence of particle size. In: Journal of the Optical Society of America B: Optical Physics. 1998 ; Vol. 15, No. 12. pp. 2937-2945.
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Rangel-Rojo, R, Yamada, S, Matsuda, H, Kasai, H, Nakanishi, H, Kar, AK & Wherrett, BS 1998, 'Spectrally resolved third-order nonlinearities in polydiacetylene microcrystals: Influence of particle size', Journal of the Optical Society of America B: Optical Physics, vol. 15, no. 12, pp. 2937-2945.

Spectrally resolved third-order nonlinearities in polydiacetylene microcrystals : Influence of particle size. / Rangel-Rojo, R.; Yamada, S.; Matsuda, H.; Kasai, H.; Nakanishi, H.; Kar, A. K.; Wherrett, B. S.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 15, No. 12, 12.1998, p. 2937-2945.

Research output: Contribution to journalArticle

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AU - Rangel-Rojo, R.

AU - Yamada, S.

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AU - Kasai, H.

AU - Nakanishi, H.

AU - Kar, A. K.

AU - Wherrett, B. S.

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