Portal de Periódicos da CAPES

Tunable generation of Bessel beams with a fluidic axicon

2008; American Institute of Physics; Volume: 92; Issue: 26 Linguagem: Inglês

10.1063/1.2952833

1520-8842

Graham Milne, Gavin D. M. Jeffries, Daniel T. Chiu,

Micro and Nano Robotics

This paper describes a tunable fluidic conical lens, or axicon, for the generation and dynamic reconfiguration of Bessel beams. When illuminated with a Gaussian laser beam, our fluidic axicon generates a diverging beam with an annular cross section. By varying the refractive index of the solution that fills our device, we can vary easily the spatial properties of the resulting Bessel beam.