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Focusing of higher-order radially polarized Laguerre–Gaussian beam |
JOSA A, Vol. 29, Issue 11, pp. 2439-2443 (2012)
http://dx.doi.org/10.1364/JOSAA.29.002439
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Abstract
We consider the formation of a small focal spot, which has been reported in [J. Opt. Soc. Am. A 24, 1793 (2007)], by separating a higher-order radially polarized Laguerre–Gaussian beam into two parts: a Bessel-like multi-ring part and an annular part. The latter forms a dominant small spot of longitudinal electric field component near the focus, while the former mainly contributes to a weak annular pattern of radial component.
© 2012 Optical Society of America
OCIS Codes
(050.1960) Diffraction and gratings : Diffraction theory
(140.3300) Lasers and laser optics : Laser beam shaping
(260.3160) Physical optics : Interference
(260.5430) Physical optics : Polarization
ToC Category:
Physical Optics
History
Original Manuscript: August 22, 2012
Revised Manuscript: October 1, 2012
Manuscript Accepted: October 4, 2012
Published: October 22, 2012
Citation
Yuichi Kozawa and Shunichi Sato, "Focusing of higher-order radially polarized Laguerre–Gaussian beam," J. Opt. Soc. Am. A 29, 2439-2443 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-11-2439
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