Spatial profile of the lateral optical force acting on a spherical particle in air or vacuum illuminated by five plane wave interference fields with a regular distribution of incident angles. Dark red and blue indicate extremes of the force.

From the article:

Lateral Optical Force due to the Breaking of Electric-Magnetic Symmetry
Huajin Chen, Hongxia Zheng, Wanli Lu, Shiyang Liu, Jack Ng, and Zhifang Lin
Phys. Rev. Lett. 125, 073901 (2020)

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