Chinese Optics Letters, 2011, 9 (1): 011402, Published Online: Jan. 7, 2011
Production of annular flat-topped vortex beams Download: 764次
Abstract
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.
Jiannong Chen, Yongjiang Yu, Feifei Wang. Production of annular flat-topped vortex beams[J]. Chinese Optics Letters, 2011, 9(1): 011402.