First experimental demonstration of a Fresnel axicon

Kevin Gourley; Ilya Golub; Brahim Chebbi

doi:10.1117/12.807162

11 August 2008 First experimental demonstration of a Fresnel axicon

Kevin Gourley, Ilya Golub, Brahim Chebbi

Proceedings Volume 7099, Photonics North 2008; 70990D (2008) https://doi.org/10.1117/12.807162
Event: Photonics North 2008, 2008, Montréal, Canada

Abstract

Nondiffracting or Bessel beams find applications in diverse fields like optical tweezers/spanners, microscopy, super-resolution and optical coherence tomography. An axicon, energywise, is the most efficient method for generating a diffraction-free beam. Yet one of the impediments to wide use of these optical elements is the cost related to the way they are manufactured. Recently we proposed a novel optical element - Fresnel axicon (Opt. Lett. 31, 1890, 2006) - which enables to overcome this problem while providing advantages such as compactness and very low bulk absorption. Prototypes of the Fresnel axicon were manufactured. In the present work we report the first experimental results characterising the optical properties of this novel device, which bridges the gap between diffractive axicons and their refractive counterparts.

Citation Download Citation

Kevin Gourley, Ilya Golub, and Brahim Chebbi "First experimental demonstration of a Fresnel axicon", Proc. SPIE 7099, Photonics North 2008, 70990D (11 August 2008); https://doi.org/10.1117/12.807162

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