Characterisation of fulgides in a solid matrix as recording materials for optical components

Year: 1996

Authors: Francini F., Ottavi G., Sansoni P., Tiribilli B.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Dipartimento di chimica, Università di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy

Abstract: The optical properties of solid samples of polymethyl-methacrylate doped with fulgide photochromic molecules were studied. The transmittance of a thin plate sample was measured when both the activation (UV) and bleaching wavelengths are employed. The samples were used as an optical switch where an UV pulse switches a visible signal beam. The behaviour of these compounds as holographic materials, studied by efficiency measurements at varying grating steps, is reported. We realised the experimental set-up for the measurements in competition with simultaneous UV and visible irradiation on the photochromic sample. The results are the transmittance of the fulgide 611TD in polymethil-methacrylate measured for increasing value of the input visible light, the test were performed for different levels of the UV irradiation on the sample.

Journal/Review: OPTICS COMMUNICATIONS (PRINT)

Volume: 130 (4-6)      Pages from: 235  to: 240

KeyWords: Doping (additives); Holographic optical elements; Optical materials; Optical properties; Solids; Ultraviolet radiation, Fulgides; Optical components; Recording materials; Solid matrix, Optical variables control
DOI: 10.1016/0030-4018(96)00225-8

Citations: 13
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