Improvement of lens axicon’s performance for longitudinally polarized beam generation by adding a dedicated phase transmittance | Zendy

K.B. Rajesh | Zendy; Zbigniew Jaroszewicz | Zendy; P. M. Anbarasan | Zendy

Open Access

Improvement of lens axicon’s performance for longitudinally polarized beam generation by adding a dedicated phase transmittance

Author(s) -

K.B. Rajesh,

Zbigniew Jaroszewicz,

P. M. Anbarasan

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.026799

Subject(s) - axicon , optics , lens (geology) , physics , bessel beam , diffraction , gaussian beam , transmittance , phase (matter) , beam (structure) , laser beams , laser , quantum mechanics

The focal field of high NA lens axicon with a binary-phase optical component is calculated by using vector diffraction theory. Numerical results show that for a radially polarized Bessel Gaussian input field, the proposed system generates a subwavelength (0.395λ) longitudinally polarized beam with large uniform depth of focus (approximately 6 λ).

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