Nonlinear optical properties of a self-organized dye thin film

• 作 者: 康海峰 元以中 孙真荣 王祖赓
• 机 构: Key Laboratory of Optical and Magnetic Resonance Spectroscopy(East China Normal University) Ministry
• 出 处: Chinese Optics Letters
• 发表日期: 2007年07期
• 关键词: cyanine organized exciton ultraviolet degenerate visible mixing monomer excited

A self-organized thin film of a cyanine dye is fabricated by the spin-coating technique and is characterized by ultraviolet-visible spectroscopy,infrared(IR)spectroscopy,small-angle X-ray diffraction,ellipsometer, and atomic force microscopy(AFM).The nonlinear optical properties of the thin films are investigated by degenerate four wave mixing(DFWM)technique.The cyanine dye thin film sample exhibits high optical nonlinearities(X~(3)=2.55×10~(-12)esu),and the mechanism is analyzed by the exciton coupling theory.

A self-organized thin film of a cyanine dye is fabricated by the spin-coating technique and is characterized by ultraviolet-visible spectroscopy, infrared (IR) spectroscopy, small-angle X-ray diffraction, ellipsometer, and atomic force microscopy (AFM) The nonlinear optical properties of the thin films are investigated by degenerate four wave mixing (DFWM) technique. Cyanine dye thin film sample exhibits high optical nonlinearities (X ~ (3) = 2.55 × 10 ~ (-12) esu), and the mechanism is analyzed by the exciton coupling theory.