Chan C K, Flagan R C, Seinfeld J H
Appl Opt. 1991 Feb 1;30(4):459-67. doi: 10.1364/AO.30.000459.
To study the interactions between Mie scattering and Raman emissions of spherical particles, we measured the Raman spectra together with the elastically scattered light of the excitation source of an evaporating aqueous sodium nitrate droplet. Resonance structures were observed in the temporal profiles of the elastically scattered light and Raman nitrate and water emissions. The resonance structures in these three profiles occurred in a concerted mode but sometimes occurred independently of each other. A model of inelastic scattering by microspheres by Kerker et al. ["Raman and Fluorescent Scattering by Molecules Embedded in Spheres with Radii up to Several Multiples of the Wavelength," Appl. Opt. 18, 1172-1179 (1979); "Lorenz-Mie Scattering by Spheres: Some Newly Recognized Phenomena," Aerosol Sci. Technol. 1, 275-291 (1982); "Inelastic Light Scattering," in Aerosol Microphysics I: Particle Interaction, W. H. Marlow, Ed. (Springer-Verlag, New York, 1980); "Model for Raman and Fluorescent Scattering by Molecules Embedded in Small Particles," Phys. Rev. A 13, 396-404 (1976)] and the behavior of low order Mie resonances were used to explain the data. This type of data can be used for the determination of chemical compositions of spherical particles.
为了研究球形颗粒的米氏散射与拉曼发射之间的相互作用，我们测量了蒸发的硝酸钠水溶液液滴的拉曼光谱以及激发源的弹性散射光。在弹性散射光以及拉曼硝酸根和水发射的时间轮廓中观察到了共振结构。这三个轮廓中的共振结构以协同模式出现，但有时也会彼此独立出现。采用了Kerker等人提出的微球非弹性散射模型[《半径达波长数倍的球体内分子的拉曼和荧光散射》，《应用光学》18卷，第1172 - 1179页(1979年);《球体的洛伦兹 - 米氏散射:一些新认识的现象》，《气溶胶科学与技术》1卷，第275 - 291页(1982年);《非弹性光散射》，载于《气溶胶微观物理学I:粒子相互作用》，W. H. Marlow编(施普林格出版社，纽约，1980年);《小颗粒内分子的拉曼和荧光散射模型》，《物理评论A》13卷，第396 - 404页(1976年)]以及低阶米氏共振的行为来解释这些数据。这类数据可用于确定球形颗粒的化学成分。
