研究了柑桔溃疡菌的共振散射光谱，在 330、 425、 465和 695 nm产生四个共振散射峰 .当激发波长为 330 nm ( 9.09× 1014 Hz)时，溃疡菌溶液在 330 nm( 9.09× 1014 Hz)、 660 nm( 1/2× 9.09× 1014 Hz)和 990 nm( 1/3× 9.09× 1014 Hz)分别产生一共振散射峰和 1/2、 1/3两个分频散射峰；当激发波长为 465 nm( 6.45× 1014 Hz)时，在 456 nm(6.45× 1014 Hz)和 930 nm(1/2× 6.45× 1014 Hz)分别产生一个共振散射峰和一个 1/2分频射峰 ; 当激发波长为 930 nm(3.23× 1014 Hz)时 ,在 930 nm (3.23× 1014 Hz)、 620 nm(3/2× 3.23× 1014 Hz)、 465 nm(2× 3.23× 1014 Hz) 和 310 nm (3× 3.23× 1014 Hz)分别产生一个共振散射峰，一个 3/2分频共振散射峰，一个 2倍频共振散射峰和一个 3倍频共振散射峰 .柑桔溃疡菌是一种非线性散射光学介质 .分频散射和倍频散射峰与共振散射峰具有相似的散射行为 .%The resonance scattering spectra of orange ulcer germs have been studied. There are four resonance scattering peaks at 330, 425, 465 and 695 nm. When the excitation wavelength (λ ex) is set at 330 nm(9.09× 1014 Hz), the orange ulcer germs in solution exhibit a resonance scattering peak at 330 nm and two 1/2, 1/3 fraction frequency scattering peaks at 465 nm( 1/2× 9.09× 1014 Hz) and 990 nm( 1/3× 9.09× 1014 Hz) respectively. A resonance scattering peak at 465 nm(6.45× 1014 Hz) and a 1/2 fraction frequency scattering peak at 930 nm(1/2× 6.45× 1014 Hz) are observed as λ ex=465 nm. There are a 3/2 fraction frequency scattering peak at 465 nm(2× 3.23× 1014 Hz), a three times frequency scattering peak at 310 nm(3× 3.23 × 1014 Hz) and a resonance scattering peak at 930 nm(3.23 × 1014 Hz) observed for the excitation wavelength of 930 nm. Orange ulcer is a nonlinear scattering medium. Experiments showed that the fraction frequency peak and the multiple frequency peak have similar scattering behaviour to that of the resonance scattering peak.
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