Reversal construction of polarization-controlled focusing field with multiple focal spots

Jiming Wang; Qingliang Liu; Chongjun He; Youwen Liu

doi:10.1117/1.OE.52.4.048002

24 April 2013 Reversal construction of polarization-controlled focusing field with multiple focal spots

Jiming Wang, Qingliang Liu, Chongjun He, Youwen Liu

Author Affiliations +

Optical Engineering, Vol. 52, Issue 4, 048002 (April 2013). https://doi.org/10.1117/1.OE.52.4.048002

Abstract

We propose an approach to control the polarization and intensity of the focusing field with multiple focal spots in a high-numerical-aperture imaging system. This focused field is explained as the reversal radiation of the dipole array with presupposed oscillating direction in the focal volume. By engineering the structure of the electric dipole array and reversing the radiation from this dipole array, the local manipulation of intensity and polarization in the focal region is achieved, and the required field at the pupil plane is derived. A focusing field with six vectorial focal spots is created as an example to verify this method. This multifocal field will meet potential application in polarization-dependent optical microscope and optical trapping for multiple particles.

Citation Download Citation

Jiming Wang, Qingliang Liu, Chongjun He, and Youwen Liu "Reversal construction of polarization-controlled focusing field with multiple focal spots," Optical Engineering 52(4), 048002 (24 April 2013). https://doi.org/10.1117/1.OE.52.4.048002

Published: 24 April 2013

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