Optical bistability in Langmuir-Blodgett films of phthalocyanines derivatives on reflection

De Zen Shen; Yajun Li; Xiwu Fan; Junqing Fan

doi:10.1117/12.130440

28 October 1992 Optical bistability in Langmuir-Blodgett films of phthalocyanine derivatives on reflection

De Zen Shen, Yajun Li, Xiwu Fan, Junqing Fan

Proceedings Volume 1726, 1992 Shanghai International Symposium on Quantum Optics; (1992) https://doi.org/10.1117/12.130440
Event: 1992 Shanghai International Symposium on Quantum Optics, 1992, Shanghai, China

Abstract

Saturating absorption and optical bistability (OB) with ns switching time in Langmuir-Blodgett (LB) films of phthalocyanines derivatives on reflection have been studied at room temperature (RT) in the near ultraviolet region for the first time. The saturating intensity (I_s) and switching intensity for the OB at 337.1 nm are about 1 MW/cm² and 5 MW/cm², respectively. The experimental results show that the major nonlinear and positive feedback mechanisms for the OB are the change of refractive index caused by the saturating absorption and the simple F-P cavity due to the natural faces of the sample, respectively.

Citation Download Citation

De Zen Shen, Yajun Li, Xiwu Fan, and Junqing Fan "Optical bistability in Langmuir-Blodgett films of phthalocyanine derivatives on reflection", Proc. SPIE 1726, 1992 Shanghai International Symposium on Quantum Optics, (28 October 1992); https://doi.org/10.1117/12.130440

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