Infrared photorefractive polymers and their applications for imaging.

Kippelen, B; Marder, S R; Hendrickx, E; Maldonado, J L; Guillemet, G; Volodin, B L; Steele, D D; Enami, Y et al. · Science · 1998

basic_science · Level V

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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.

Medical subject headings