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Proceedings Paper

Real-Time Interferometry By Degenerate Four-Wave Mixing And Holography In Eosin Film
Author(s): K. Nakagawa; H. Fujiwara
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Paper 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).

Paper Details

Date Published: 1 January 1987
PDF: 2 pages
Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); doi: 10.1117/12.967380
Show Author Affiliations
K. Nakagawa, Muroran Institute (Japan)
H. Fujiwara, Muroran Institute (Japan)

Published in SPIE Proceedings Vol. 0813:
Optics and the Information Age
Henri H. Arsenault, Editor(s)

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