Linear and nonlinear optical properties of an organic polymer composite film

Author

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

Author_Institution

Department of Optics, Shandong University, Jinan, 250100 China

Volume

2009-Supplement

fYear

2009

fDate

2-6 Nov. 2009

Firstpage

1

Lastpage

7

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.

Keywords

Absorption; Nonlinear optics; Optical coupling; Optical films; Optical polymers; Optical pulses; Optical refraction; Optical variables control; Organic materials; Polymer films; Z-scan technique; nonlinear absorption; nonlinear optical properties; organic polymer composite films;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition (ACP), 2009 Asia

Conference_Location

Shanghai, China

Print_ISBN

978-1-55752-877-3

Electronic_ISBN

978-1-55752-877-3

Type

conf

Filename

5405467