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《Spectroscopy and Spectral Analysis》 2002-04
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Studies on the Resonance Nonlinear Scattering of Aqueous CoFe_2O_4 Nanoparticle

JIANG Zhi liang 1, LIU Shao pu 1, ZHAO Bao gang 2,CHEN Sa 1,and LI Jian 2 1 Institute of Environmental Chemistry, Southwest China Normal University,Chongqiang 400715,China 2 Department of Physics,Southwest China Normal University,Chong  
There are five resonance scattering peaks at 400,470,510,800 and 940 nm for aqueous CoFe 2O 4 nanoparticles It is a nonlinear scattering medium When excited wavelength is at 330 nm, there are a Rayleigh scattering peak at 330 nm ,a 1/2 fraction frequency peak at 660 nm and a 1/3 fraction frequency peak at 990 nm It exhibits a strongest double frequency peak at 400 nm and a Rayleigh scattering peak at 800 nm as the excited wavelength is at 800 nm The double frequency peak and the 1/2 fraction frequency peak have similar scattering property as the Rayleigh scattering peak A new concept including gray particle and white particle has been proposed, and applied to analysis of the resonance scattering spectra of CoFe 2O 4 nanoparticle system
【Fund】: 国家自然科学基金;; 教育部优秀骨干教师基金;; 广西自然科学基金资助项目
【CateGory Index】: O657.3
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