Linear and nonlinear optical properties of an organic polymer composite film

Qiang Sun; Quan Ren; Xinqiang Wang; Tingbin Li; Hongliang Yang; Fujun Zhang; Jingwei Chen

doi:10.1117/12.853023

2 December 2009 Linear and nonlinear optical properties of an organic polymer composite film

Qiang Sun, Quan Ren, Xinqiang Wang, Tingbin Li, Hongliang Yang, Fujun Zhang, Jingwei Chen

Proceedings Volume 7631, Optoelectronic Materials and Devices IV; 76310W (2009) https://doi.org/10.1117/12.853023
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

Abstract

An organic material, 4,5-bis(benzoylthio)-1,3-dithiole-2-thione (BBDT), was synthesized. The thin film of BBDT doped into poly(methyl methacrylate) (PMMA) was prepared using spin-coating method. Its linear optical properties were characterized with prism coupler (SPA-4000, Korea). The third-order nonlinear optical (NLO) properties were investigated using Z-scan technique with pulses of picoseconds at 532 nm. The Z-scan spectra reveal a strong nonlinear absorption (reverse saturable absorption) and a positive nonlinear refraction. The nonlinear absorption coefficient is calculated to be 1.302×10^-9m/W. The nonlinear refractive index is 2.243×10^-9esu. The results show that the film exhibits a great nonlinear optical response.

Citation Download Citation

Qiang Sun, Quan Ren, Xinqiang Wang, Tingbin Li, Hongliang Yang, Fujun Zhang, and Jingwei Chen "Linear and nonlinear optical properties of an organic polymer composite film", Proc. SPIE 7631, Optoelectronic Materials and Devices IV, 76310W (2 December 2009); https://doi.org/10.1117/12.853023

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