Preparation of Two Carbazole Derivatives and its Third-Order Nonlinear Optical Properties

Abstract:

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Carbazole derivative is one sort of important nonlinear optical materials. In this work, new symmetric-type D-π-D carbazole derivatives, 3, 6 - di- substituted carbazole chromophores with two styryl bridges of the two-dimensional conjugated D-π-D system were synthesized via Witting reaction and characterized by IR, NMR and MS. The third-order nonlinear optical properties of the material were investigated using single-beam Z-scan technique with Sapphire femtosecond laser pulses at 800nm, repetition rate of 1 KHz and pulse width of 140fs. The results of Z-scan with and without an aperture showed that larger third-order nonlinear optical polarizabilities γ can be readily obtained in such carbazole chromophores because of the incorporation with two styryl bridges, increasing of conformational planarity and molecular conjugation length.

Info:

Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

231-234

DOI:

10.4028/www.scientific.net/MSF.663-665.231

Citation:

L. Li et al., "Preparation of Two Carbazole Derivatives and its Third-Order Nonlinear Optical Properties", Materials Science Forum, Vols. 663-665, pp. 231-234, 2011

Online since:

November 2010

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Price:

$35.00

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