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Proceedings Paper

Measurement of phase of complex third-order nonlinear susceptibility for dye-doped polymeric films by optical phase conjugate interferometer
Author(s): Weichong Du; Kazuo Nakagawa; T. Takeda; Hirofumi Fujiwara
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Paper Abstract

An improved method involving three phase conjugates for measuring the phase of complex third-order nonlinear susceptibility ((Chi) (3)) directly has been developed. The principle of this interferometric method is that the phase shift observed on an oscilloscope between two interference signals equals the difference of (Chi) (3)'s phases of two nonlinear media. Therefore, if one of the two media serves as a standard with its known phase of (Chi) (3), the other one's phase can be determined directly. The (Chi) (3)'s phases for some saturable absorption dye-doped polymeric films such as Eosin Y doped in polyvinyl alcohol (Eo/PVA) has been measured at different wavelengths by using this interferometric technique.

Paper Details

Date Published: 5 August 1994
PDF: 4 pages
Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); doi: 10.1117/12.182172
Show Author Affiliations
Weichong Du, South China Normal Univ. (China)
Kazuo Nakagawa, Muroran Institute of Technology (Japan)
T. Takeda, Muroran Institute of Technology (Japan)
Hirofumi Fujiwara, Muroran Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 2321:
Second International Conference on Optoelectronic Science and Engineering '94
Wang Da-Heng; Anna Consortini; James B. Breckinridge, Editor(s)

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