Thermal fixing of refractive index gratings in a photorefractive polymer

Ning Cheng; Bogdan Swedek; Paras N. Prasad

doi:10.1063/1.119412

Thermal fixing of refractive index gratings in a photorefractive polymer

Ning Cheng
, Bogdan Swedek
, Paras N. Prasad

Chemistry

SUNY Buffalo

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

28 Scopus citations

Abstract

A significant increase in storage time by thermal fixing of photorefractive (PR) gratings in a polymeric composite of poly-9-vinycarbazole, tricresyl phosphate, fullerene, and 4-N,N-diethylamino-β-nitrostyrene is demonstrated. The fixing of the volume holograms is created by quasifreezing the orientation of the linearly anisotropic chromophore molecules. The fixed PR gratings can be easily erased by elevating the sample's temperature to the glass transition temperature of the composite. The readout of the thermally fixed first-order grating does not require the presence of an external electric field.

Original language	English
Pages (from-to)	1828-1830
Number of pages	3
Journal	Applied Physics Letters
Volume	71
Issue number	13
DOIs	https://doi.org/10.1063/1.119412
State	Published - Sep 29 1997

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abstract = "A significant increase in storage time by thermal fixing of photorefractive (PR) gratings in a polymeric composite of poly-9-vinycarbazole, tricresyl phosphate, fullerene, and 4-N,N-diethylamino-β-nitrostyrene is demonstrated. The fixing of the volume holograms is created by quasifreezing the orientation of the linearly anisotropic chromophore molecules. The fixed PR gratings can be easily erased by elevating the sample's temperature to the glass transition temperature of the composite. The readout of the thermally fixed first-order grating does not require the presence of an external electric field.",

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AU - Swedek, Bogdan

AU - Prasad, Paras N.

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N2 - A significant increase in storage time by thermal fixing of photorefractive (PR) gratings in a polymeric composite of poly-9-vinycarbazole, tricresyl phosphate, fullerene, and 4-N,N-diethylamino-β-nitrostyrene is demonstrated. The fixing of the volume holograms is created by quasifreezing the orientation of the linearly anisotropic chromophore molecules. The fixed PR gratings can be easily erased by elevating the sample's temperature to the glass transition temperature of the composite. The readout of the thermally fixed first-order grating does not require the presence of an external electric field.

AB - A significant increase in storage time by thermal fixing of photorefractive (PR) gratings in a polymeric composite of poly-9-vinycarbazole, tricresyl phosphate, fullerene, and 4-N,N-diethylamino-β-nitrostyrene is demonstrated. The fixing of the volume holograms is created by quasifreezing the orientation of the linearly anisotropic chromophore molecules. The fixed PR gratings can be easily erased by elevating the sample's temperature to the glass transition temperature of the composite. The readout of the thermally fixed first-order grating does not require the presence of an external electric field.

UR - https://www.scopus.com/pages/publications/0031223211

U2 - 10.1063/1.119412

DO - 10.1063/1.119412

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

ER -

Thermal fixing of refractive index gratings in a photorefractive polymer

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