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Infrared photorefractive polymers and their applications for imaging
B Kippelen1, S R Marder, E Hendrickx
1Optical Sciences Center, University of Arizona, Tucson, AZ 85721, USA. nnp@u.arizona.edu
Science (New York, N.Y.)
|January 24, 1998
Abstract:
Photorefractive polymers with high diffraction efficiency in the visible and near-infrared regions of the electromagnetic spectrum have been developed. These polymers, which have a large dynamic range because of their high orientational birefringence, incorporate a dye designed to have a large dipole moment and a high linear polarizability anisotropy. Such polymers have enabled demonstrations of imaging through scattering media, using a holographic time-gating technique at a wavelength that is compatible with the transparency of biological tissues and with the emission of low-cost semiconductor laser diodes.