Measurement of phase of complex third-order nonlinear susceptibility for dye-doped polymeric films by optical phase conjugate interferometer

Weichong Du; Kazuo Nakagawa; T. Takeda; Hirofumi Fujiwara

doi:10.1117/12.182172

5 August 1994 Measurement of phase of complex third-order nonlinear susceptibility for dye-doped polymeric films by optical phase conjugate interferometer

Weichong Du, Kazuo Nakagawa, T. Takeda, Hirofumi Fujiwara

Author Affiliations +

Proceedings Volume 2321, Second International Conference on Optoelectronic Science and Engineering '94; (1994) https://doi.org/10.1117/12.182172
Event: Optoelectronic Science and Engineering '94: International Conference, 1994, Beijing, China

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.

Citation Download Citation

Weichong Du, Kazuo Nakagawa, T. Takeda, and Hirofumi Fujiwara "Measurement of phase of complex third-order nonlinear susceptibility for dye-doped polymeric films by optical phase conjugate interferometer", Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182172

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