Please use this identifier to cite or link to this item: https://doi.org/10.1364/OPEX.13.001066
Title: Focusing of pseudoradial polarized beams
Authors: Cooper, I.J.
Roy, M.
Sheppard, C.J.R. 
Issue Date: Feb-2005
Source: Cooper, I.J.,Roy, M.,Sheppard, C.J.R. (2005-02). Focusing of pseudoradial polarized beams. Optics Express 13 (4) : 1066-1071. ScholarBank@NUS Repository. https://doi.org/10.1364/OPEX.13.001066
Abstract: The focusing of a light beam with radial polarization has substantial advantages as the irradiance distribution in the focal plane is symmetric and there is maximum absorption at the focus. Using half wave plates cut into four quadrants with each quadrant having a linear polarization directed outwards gives a total field that approximates radial polarization, called pseudoradial polarization. The irradiance distributions in the focal region for different polarizations and beam profiles are compared. The irradiance is calculated by the numerical integration of the two-dimensional Rayleigh-Sommerfeld diffraction integral of the first kind using the 2DSC method for both circular and annular apertures. © 2005 Optical Society of America.
Source Title: Optics Express
URI: http://scholarbank.nus.edu.sg/handle/10635/68247
ISSN: 10944087
DOI: 10.1364/OPEX.13.001066
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