High-performance photorefractive polymer composite with 2-dicyanomethylen-3-cyano-2,5-dihydrofuran chromophore

High-performance photorefractive polymer composite with 2-dicyanomethylen-3-cyano-2,5-dihydrofuran chromophore

A nonlinear optical chromophore for photorefractive applications containing a 2-dicyanomethylen- 3-cyano-2,5-dihydrofuran acceptor group is presented. When doped into a plasticized composite of poly(n-vinylcarbazole), large gain coefficients (Γ) are observed with photorefractive speed similar to the...

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Veröffentlicht in:Applied physics letters 2001-12, Vol.79 (26), p.4274-4276
Hauptverfasser: Wright, Daniel, Gubler, Ulrich, Roh, Yeonsuk, Moerner, W. E., He, Meng, Twieg, Robert J.
Format: Artikel
Sprache:eng
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Zusammenfassung:A nonlinear optical chromophore for photorefractive applications containing a 2-dicyanomethylen- 3-cyano-2,5-dihydrofuran acceptor group is presented. When doped into a plasticized composite of poly(n-vinylcarbazole), large gain coefficients (Γ) are observed with photorefractive speed similar to the best composites reported in the literature while maintaining low sample absorption (∼15 cm−1).
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1428120