物理化学学报 >> 2001, Vol. 17 >> Issue (05): 406-411.doi: 10.3866/PKU.WHXB20010506

研究论文 上一篇    下一篇

柑桔溃疡菌的共振散射光谱

谢济运;蒋治良   

  1. 广西师范大学化学与生命科学学院,桂林 541004
  • 收稿日期:2000-09-15 修回日期:2001-01-02 发布日期:2001-05-15
  • 通讯作者: 蒋治良 E-mail:zljiang@gl.gx.cninfo.net

Resonance Scattering Spectra of Orange Ulcer Germs

Xie Ji-Yun;Jiang Zhi-Liang   

  1. College of Chemistry and Life Science, Guangxi Normal University,Guilin 541004
  • Received:2000-09-15 Revised:2001-01-02 Published:2001-05-15
  • Contact: Jiang Zhi-Liang E-mail:zljiang@gl.gx.cninfo.net

摘要: 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.

关键词: 柑桔溃疡菌, 共振散射, 非线性散射

Abstract: 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 (λex) 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 λex =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.

Key words: Orange ulcer germs, Resonance scattering, Nonlinear scattering