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液相纳米粒子CoFe2 O4在 4 0 0 ,4 70 ,510 ,80 0和 94 0nm产生五个共振散射峰。它是一种非线性光散射介质。当激发波长为 330nm时 ,CoFe2 O4纳米粒子分别在于 330 ,6 6 0和 990nm产生一个共振散射峰、一个 1/2分频散射峰和一个 1/3分频散射峰 ;当激发波长为 80 0nm时 ,在 80 0nm产生一个共振散射峰 ,而在4 0 0nm产生一个较该共振散射峰更强的 2倍频散射峰。分频散射和倍频散射与共振散射有相似的散射行为。根据建立的灰白粒子体系共振散射光谱原理定性解析了CoFe2 O4纳米粒子体系的共振散射光谱
The liquid phase nanoparticles CoFe 2 O 4 produced five resonance scattering peaks at 4 0 0, 4 70, 510, 80 0 and 94 0 nm. It is a nonlinear light scattering medium. When the excitation wavelength is 330 nm, the CoFe 2 O 4 nanoparticles produce a resonance scattering peak, a half-frequency half-wave scattering peak and a 1/3 -frequency scattering peak respectively at 330, 6 6 0 and 990 nm. When the excitation wavelength is 80 0 nm , A resonance scattering peak is generated at 800 nm and a stronger second harmonic scattering peak at 400 nm is generated at 400 nm. Scattering and frequency doubling and scattering have similar scattering behavior. The resonance scattering spectra of CoFe2 O4 nanoparticle system were qualitatively analyzed based on the established resonance scattering principle of the gray system.