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Updated: May 10, 2026

Evanescent Field Based Photoacoustics: Optical Property Evaluation at Surfaces
Published on: July 26, 2016
The effects of multiple scattering to optical forces on a sphere in an evanescent field
Wei-Ping Zang1, Yang Yang, Zhi-Yu Zhao
1Photonics Center, School of Physics, Nankai University, Tianjin 300071, China. wpzang@nankai.edu.cn
Abstract:
In this paper we discuss the effects of multiple scattering to the optical forces on a particle by an evanescent field. We show that the iterative method to process the effects of the interaction between the particle and a plane surface is invalid when the radius of particle is large or when the structural resonance of the particle occurs. By using the generalized minimum residual method to solve the set of equations directly, the divergence appears in the iterative method can be removed completely. As an illustrative example, we discussed the effects of multiple scattering to optical forces on a particle in an evanescent field from an incident plane wave. The interpretations of numerical results are presented in detail.
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