I review the theory of the scattering of a Gaussian laser beam by a dielectric spherical particle and give the details for constructing a computer program to implement the theory. Computational results indicate that if the width of the laser beam is much less than the diameter of the particle and if the axis of the beam is incident near the edge of the particle, the fifth-, sixth-, and ninth-order rainbows should be evident in the far-field scattered intensity. I performed an experiment that yielded tentative evidence for the presence of the sixth-order rainbow.
Contribution of High-Order Rainbows to the Scattering of a Gaussian Laser Beam by a Spherical ParticleJournal of the Optical Society of America A: Optics Image Science and Vision
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Citation InformationLock, James A. "Contribution of High-Order Rainbows to the Scattering of a Gaussian Laser Beam by a Spherical Particle." Journal of the Optical Society of America A: Optics Image Science and Vision 10 (1993): 693-706.