A further exploitation of the attenuated-total-reflection technique to measure the complex second hyperpolarizability for the quadratic electro-optic effect of a linear conjugated polymerXiaohui Zhu1, Xiaoxu Deng1, Xiang Zheng1, Zhuangqi Cao1, Honggen Li1, Qishun Shen1, Wen Yuan2, Wei Wei3 and Feng Liu3
1 Department of Physics, State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University - Shanghai, 200240, China
2 Department of Physics, Jiangxi Normal University - Nanchang, 330022, China
3 State Key Laboratory for Advanced Photonic Materials & Devices, Fudan University - Shanghai 200433, China
received 25 March 2009; accepted in final form 10 July 2009; published July 2009
published online 7 August 2009
By using the technique of the attenuated total reflection, the complex second hyperpolarizability for the quadratic electro-optic effect of a linear conjugated polymer is determined at the wavelength of the absorption edge by employing the data measured from different guided wave resonance dips. The values and the signs of the real and imaginary parts of the second hyperpolarizability are simultaneously obtained without employing the Kramers-Kronig transformation.
42.65.An - Optical susceptibility; hyperpolarizability.
42.65.Wi - Nonlinear waveguides.
42.70.Jk - Polymers and organics.
© EPLA 2009