A photochromic reaction in Zn-tetrabenzoporphyrine-doped poly(methyl methacrylate) was investigated at room temperature. A one-quantum thermoreversible photoreaction could be initiated in the sample with 633-nm He–Ne laser irradiation. The photoreaction quantum yield depended strongly on the concentration of an additional electron acceptor. The changes of the refractive index were also measured.
© 1999 Optical Society of America
O. V. Khodykin, S. J. Zilker, D. Haarer, and B. M. Kharlamov, "Zinc-tetrabenzoporphyrine-doped poly(methyl methacrylate): a new photochromic recording medium," Opt. Lett. 24, 513-515 (1999)