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Production of annular flat-topped vortex beams

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【Author】 Jiannong Chen,Yongjiang Yu,and Feifei Wang School of Physics,Ludong University,Yantai 264025,China

【机构】 School of Physics,Ludong University；

【摘要】 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.更多还原

【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.更多还原

【关键词】 annular； vortex； modulator； trapping； hollow； displayed； extremely； reconstructed； attractive； radial；

【基金】 supported by the National Natural Science Foundation of China (No.11074105);the Natural Science Foundation of Shandong Province (No.Z2008A02);the Ludong University Natural Science Doctorate Program (No.LY20082802)

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2011年01期
【分类号】TN241
【被引频次】5
【下载频次】69

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