Long-range Longitudinally-polarized Optical Needle Beam

Geo M. Philip; Nirmal K. Viswanathan

doi:10.1364/FIO.2013.FW4F.4

Frontiers in Optics 2013
OSA Technical Digest (online) (Optica Publishing Group, 2013),
paper FW4F.4
•https://doi.org/10.1364/FIO.2013.FW4F.4

Long-range Longitudinally-polarized Optical Needle Beam

Geo M. Philip and Nirmal K. Viswanathan

Frontiers in Optics 2013

Orlando, Florida United States
6–10 October 2013
ISBN: 978-1-55752-987-9

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Unconventional Polarization and Complex Optical Fields III (FW4F)

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G. M. Philip and N. K. Viswanathan, "Long-range Longitudinally-polarized Optical Needle Beam," in Frontiers in Optics 2013, I. Kang, D. Reitze, N. Alic, and D. Hagan, eds., OSA Technical Digest (online) (Optica Publishing Group, 2013), paper FW4F.4.

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Abstract

Longitudinally-polarized optical needle beam with spot-size 0.48λ and enhanced non-diverging range 40λ is achieved by focusing radially-polarized beam using a high numerical aperture axicon. Also presented are its Poynting vector and degree of polarization distributions.

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