Abstract
We demonstrate the possibility of creating multiple spherical spots in a focusing system with a radially polarized beam. Using spherical waves to expand the plane wave factor in the Richards–Wolf integral, it is found that a proper spatial modulation in the amplitude of the input field with radial polarization can form multiple spherical spots with a focusing system satisfying the Herschel condition. These spots are distributed symmetrically about the focus on the optical axis with variable positions and intensities. Although we consider only the case of three spherical spots in this paper, generalization to the multiple-spots case will present no difficulty.
© 2010 Optical Society of America
Full Article | PDF ArticleMore Like This
Shaohui Yan, Baoli Yao, and Romano Rupp
Opt. Express 19(2) 673-678 (2011)
Nándor Bokor and Nir Davidson
Opt. Lett. 29(17) 1968-1970 (2004)
Zhongquan Nie, Weiqiang Ding, Dongyu Li, Xueru Zhang, Yuxiao Wang, and Yinglin Song
Opt. Express 23(2) 690-701 (2015)