Biphoton holograms are recorded by a He-Ne laser in Methyl Orange and Ethyl Orange dyes on exposure to a 514.5-nm argon-ion laser, and the dynamic of holographic recording is reported. The recording utilizes an unusual photochemistry that is due to either to a triplet-triplet transition from a long-lived triplet lower state of the cis configuration or a transition back to the trans state.
© 1994 Optical Society of America
Haosheng Fei, Zhenqian Wei, Pengfei Wu, Li Han, Yingying Zhao, and Yanlong Che, "Biphoton holographic storage in Methyl Orange and Ethyl Orange dyes," Opt. Lett. 19, 411-413 (1994)