Abstract
Dye-sensitized gelatin is a common recording material for volume holograms. The dye acts as a spectral sensitizer in light-sensitive materials such as silver halide, dichromated gelatin, and photopolymers, mostly used as volume phase recording media. The dye, however, can be used in a pure gelatin matrix also for real-time experiments, e.g., degenerate four-wave mixing facilitated by the cis-trans isomerization of the dye to record polarization-sensitive gratings. This paper describes some preliminary results concerning an observed photoinduced crosslinking effect of a dyed gelatin. The system comprises a halogenated xanthene dye, Eosin Y in a gelatin matrix, an electron donor (triethanolamine) and hydrogen-hexachloroplatinate (IV), a prehardening agent. Experiments have shown that this photochemical reaction—a photooxidation process—constitutes a system with the capability of recording volume phase holograms. As the selection of dyes with photooxidizing properties is vast in terms of spectral sensitivity such a system could in theory be tailored to any laser wavelength in the visible and possibly near-infrared.
© 1991 Optical Society of America
PDF ArticleMore Like This
Gajendra Savant, Araz Yacoubian, and Tin M. Aye
ThMM10 OSA Annual Meeting (FIO) 1991
T. Sh. Efendiev, V.M. Katarkevich, and A.N. Rubinov
CC_P7 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2009
C. Denz, G. Pauliat, G. Roosen, and T. Tschudi
MD1 Photorefractive Materials, Effects, and Devices II (PR) 1991