Real-Time Interferometry By Degenerate Four-Wave Mixing And Holography In Eosin Film

K. Nakagawa; H. Fujiwara

doi:10.1117/12.967380

1 January 1987 Real-Time Interferometry By Degenerate Four-Wave Mixing And Holography In Eosin Film

K. Nakagawa, H. Fujiwara

Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967380
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada

Abstract

Recently there has been some interest in the phase conjugation by the degenerate four-wave mixing in organic materials1) Xanthene dyes such as eosin, erythrosin and fluorescein, having a strong ab-sorption at the wavelengths of an Arion laser and a relatively long lifetime of their triplet states, can generate cw phase conjugate (PC) wave at the intensity of less than 0.5 w/cm2. On the other hand, these dye-doped films have been used as holographic recording materials for self-development because of photochemically induced changes in absorption and/or refractive index under the action of light2),3) We revealed that the xanthene dyes fixed in gelatin can generate simultaneously the PC waves by not only the DFWM process with a fast response time (5msec) but also the holographic process with a slow response time (40 sec) and then can store the light information as a hologram4)'5).

Citation Download Citation

K. Nakagawa and H. Fujiwara "Real-Time Interferometry By Degenerate Four-Wave Mixing And Holography In Eosin Film", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967380

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