Chinese Journal of Lasers, Volume. 38, Issue 2, 202011(2011)
Bottle Beam Generated by Reconstruction of Bessel Beam with an Annular Obstacle
Based on Hankel wave′s theory and geometric optical theory, the reconstruction of Bessel beam through an annular obstacle is studied. The results showed those non-diffracting beams generated by axicon are the superposition of two outgoing Hankel waves. Non-diffracting beams through annular obstacle are simulated with Zemax software. The cross sections of intensity distribution at different places on axis behind annular obstacle are also stimulated. The relationship between Bottle beam size and annular obstacle diameter is investigated. In the experiment, we use axicon to generate non-diffracting beam, and an annular obstacle is kept within the maximum collimating distance of the non-diffracting beam. Optical intensity distribution behind the annular obstacle is captured with CCD camera. The result agrees with the simulation. The theoretical analysis and experimental results both showed that reconstruction of Bessel beam with an annular obstacle can generate Bottlte beam with zero central optical intensity. There is a potential application in optical tweezers and optical micromanipulation.
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Ma Liang, Wu Fengtie. Bottle Beam Generated by Reconstruction of Bessel Beam with an Annular Obstacle[J]. Chinese Journal of Lasers, 2011, 38(2): 202011
Category: Laser physics
Received: Jul. 19, 2010
Accepted: --
Published Online: Jan. 30, 2011
The Author Email: Liang Ma (maliang077@sina.com)