Chinese Optics Letters, Volume. 9, Issue 1, 011402(2011)
Production of annular flat-topped vortex beams
A model of an annular flat-topped vortex beam based on multi-Gaussian superimposition is proposed. We experimentally produce this beam with a computer-generated hologram (CGH) displayed on a spatial light modulator (SLM). The power of the beam is concentrated on a single-ring structure and has an extremely strong radial intensity gradient. This beam facilitates various applications ranging from Sisyphus atom cooling to micro-particle trapping.
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Jiannong Chen, Yongjiang Yu, Feifei Wang. Production of annular flat-topped vortex beams[J]. Chinese Optics Letters, 2011, 9(1): 011402
Received: Oct. 12, 2010
Accepted: Nov. 17, 2010
Published Online: Jan. 7, 2011
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