Angular scattering of light by a homogeneous spherical particle in a zeroth-order Bessel beam and its relationship to plane wave scattering.
Angular scattering of light by a homogeneous spherical particle in a zeroth-order Bessel beam and its relationship to plane wave scattering.
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DOI：
10.1364/josaa.32.001053
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发表时间：
2015-06
期刊：
影响因子：
--
通讯作者：
T. Preston;J. Reid
中科院分区：
文献类型：
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作者：
T. Preston;J. Reid
利用广义洛伦兹-米氏理论计算了均匀球粒子在零阶贝塞尔光束中的角散射。我们研究了角散射与贝塞尔光束半顶点角的关系，并讨论了散射图的主要特征。我们还将贝塞尔光束散射与平面波散射进行了比较，并给出了两种情况的差异可以忽略不计的判据。最后，我们讨论了一种用角光散射表征球形粒子的方法。这项工作对那些有兴趣利用角相关光散射测量来表征被困在光束中的粒子的研究人员很有用。
The angular scattering of light from a homogeneous spherical particle in a zeroth-order Bessel beam is calculated using a generalized Lorenz-Mie theory. We investigate the dependence of the angular scattering on the semi-apex angle of the Bessel beam and discuss the major features of the resulting scattering plots. We also compare Bessel beam scattering to plane wave scattering and provide criterion for when the difference between the two cases can be considered negligible. Finally, we discuss a method for characterizing spherical particles using angular light scattering. This work is useful to researchers who are interested in characterizing particles trapped in optical beams using angular dependent light scattering measurements.