Optical limiting properties and nonlinearity of a novel cubane-like shaped Mo/S/Cu cluster polymer

Jinbei Xu; Nanchun Liu; Jianxing Fang; Yinglin Song; Jianping Lang; Junyi Yang; Zhigang Ren

doi:10.1117/12.726462

5 March 2007 Optical limiting properties and nonlinearity of a novel cubane-like shaped Mo/S/Cu cluster polymer

Jinbei Xu, Nanchun Liu, Jianxing Fang, Yinglin Song, Jianping Lang, Junyi Yang, Zhigang Ren

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 659516 (2007) https://doi.org/10.1117/12.726462
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

The optical limiting (OL) properties of the novel cluster cis-Cp*₂Mo₂S₄Cu₂(SCN)₂ in CH₂Cl₂ solution are studied by using nanosecond duration laser pulsed at 532 nm wavelength. The OL effect of this cluster can be observed with a linear transmittance of 75%. The limiting threshold can be derived from the OL experimental results. In order to provide direct evidence on the physical origin of the observed OL effects, the nonlinear effects for this cluster in CH₂Cl₂ solution have also been investigated by time-resolved pump-probe experiments. The pump-probe experimental results of this cluster are compared with that of C₆₀, which is measured by using the same experimental setup. And it reveals that the nanosecond OL effect may be due to the reverse saturable absorption (RSA), which is related to the excited triplet states. A theoretical model of the five-level system is presented to analyze the pump-probe results.

Citation Download Citation

Jinbei Xu, Nanchun Liu, Jianxing Fang, Yinglin Song, Jianping Lang, Junyi Yang, and Zhigang Ren "Optical limiting properties and nonlinearity of a novel cubane-like shaped Mo/S/Cu cluster polymer", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 659516 (5 March 2007); https://doi.org/10.1117/12.726462

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