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Journal of Environmental Nanotechnology

(A Quarterly Peer-reviewed and Refereed International Journal)
ISSN(Print):2279-07 48; ISSN(Online):2319-5541
CODEN:JENOE2

Creation of needle of transversely polarized beam in vacuum by using complex phase plate

Abstract

The intensity distribution in the focal region for the tight focusing of double-ring-shaped azimuthally polarized beam with complex phase plate is studied on the basis of the vector diffraction theory. Here we report a new method that generates a transversely polarized light beam with sub diffraction beam size (0.488 λ) that propagates without divergence over a long distance (of about 8.6 λ) in free space. This work is important for optical manipulation and may find applications when using optical materials or instruments responsive to the transversal field only.

Article Type: Review Article

Corresponding Author:

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K. B.Rajesh 1,  K. Lalithambigai 2,  C. Mohana Sundaram 3,  P. M.Anbarasan 4.  

1. Department of Physics, Chikkanna Government Arts College, Trippur, TN, India.

2, 3, 4. Department of Physics, Periyar University, Salem, TN, India.

J. Environ. Nanotechnol. Volume 3, No.3 pp. 67-72
ISSN: 2279-0748 eISSN: 2319-5541
ENT 143097.pdf
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