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Proceedings Paper

Optical phase conjugation by degenerate four-wave mixing in photorefractive mesogenic composites
Author(s): Keiko Kitamura; Hiroshi Ono; Hideki Norisada; Nobuhiro Kawatsuki
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Paper Abstract

The high efficient optical phase conjugation was successfully observed in a photorefractive mesogenic composite. The photorefractive mesogenic composite consists of a functionalized copolymer, low-molar-mass liquid crystal mixture (E7) and 2-4-7-trinitro-9-fruorenone (TNF) as a sensitizing dye. Experiments of optical phase conjugation were carried out under the degenerate four wave mixing (DFWM) configuration using a frequency-doubled Nd-YAG laser of 532 nm (on-resonant) or a He-Ne laser of 633 nm (off-resonant). The refractive index modulation was estimated to be around 2.5 X 10-3 from the phase conjugate reflectance on the basis of the coupled wave theory including the absorption loss of the photorefractive media.

Paper Details

Date Published: 15 June 2001
PDF: 8 pages
Proc. SPIE 4279, Organic Photonic Materials and Devices III, (15 June 2001); doi: 10.1117/12.429382
Show Author Affiliations
Keiko Kitamura, Nagaoka Univ. of Technology (Japan)
Hiroshi Ono, Nagaoka Univ. of Technology (Japan)
Hideki Norisada, Himeji Institute of Technology (Japan)
Nobuhiro Kawatsuki, Himeji Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 4279:
Organic Photonic Materials and Devices III
Bernard Kippelen; Donal D. C. Bradley, Editor(s)

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