Please use this identifier to cite or link to this item: https://doi.org/10.1364/AO.50.004463
Title: Highly convergent focusing of light based on rotating dipole polarization
Authors: Sheppard, C.J.R. 
Rehman, S. 
Issue Date: 1-Aug-2011
Source: Sheppard, C.J.R., Rehman, S. (2011-08-01). Highly convergent focusing of light based on rotating dipole polarization. Applied Optics 50 (22) : 4463-4467. ScholarBank@NUS Repository. https://doi.org/10.1364/AO.50.004463
Abstract: Focusing properties of transverse circular polarization modes that bring light to a small focal spot are investigated. Two particular illumination polarization distributions are discussed. Rotating electric dipole polarization results in a central lobe diameter 8% smaller than for the circularly polarized aplanatic case at a NA of 0.95 in air and is also smaller than for radial polarization at NAs less than 0.90. Azimuthal polarization with a phase singularity of charge unity results in a small central lobe width that is smaller than that produced by focusing radially polarized light, having a width that is 17% smaller than for circularly polarized illumination at a NA of 0.95. © 2011 Optical Society of America.
Source Title: Applied Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/67083
ISSN: 00036935
DOI: 10.1364/AO.50.004463
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