Understanding Photorefractivity in High-Performance Polymer Composites

W. E. Moerner; A. Grunnet-Jepsen; D. Wright; M. S. De Clue; J. S. Siegel; R. J. Twieg

doi:10.1364/APMED.1999.OPM1

Advances in Photorefractive Materials, Effects and Devices
Trends in Optics and Photonics (Optica Publishing Group, 1999),
paper OPM1
•https://doi.org/10.1364/APMED.1999.OPM1

Understanding Photorefractivity in High-Performance Polymer Composites

W. E. Moerner, A. Grunnet-Jepsen, D. Wright, M. S. De Clue, J. S. Siegel, and R. J. Twieg

Advances in Photorefractive Materials, Effects and Devices 1999

Elsinore Denmark
ISBN: 1-55752-606-0

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Organic Photorefractive Materials (OPM)

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W. E. Moerner, A. Grunnet-Jepsen, D. Wright, M. S. De Clue, J. S. Siegel, and R. J. Twieg, "Understanding Photorefractivity in High-Performance Polymer Composites," in Advances in Photorefractive Materials, Effects and Devices, P. Andersen, P. Johansen, H. Pedersen, P. Petersen, and M. Saffman, eds., Vol. 27 of Trends in Optics and Photonics (Optica Publishing Group, 1999), paper OPM1.

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Abstract

Recently-developed photorefractive polymer composites now show sufficiently high performance to allow effects such as self-pumped phase conjugation and speeds approaching video frame rates. To understand the mechanisms leading to this new level of performance, a simple spectroscopic method for the determination of the trap density in fullerene-sensitized photorefractive (PR) polymers is presented. This method is compared with results obtained from traditional trap density measurements which involve two-wave mixing, and good correlation is observed. This technique is used to identify the inactive (compensating) trap as the nonlinear optical chromophore (NLO).

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