Focusing of an anomalous hollow beam by a spherically aberrated aperture lens and its phase singularities in the focal region
Acta Physica Sinica
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Acta Phys. Sin.  2009, Vol. 58 Issue (6): 3915-3922    
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Focusing of an anomalous hollow beam by a spherically aberrated aperture lens and its phase singularities in the focal region
Lü Bai-Da1, Luo Ya-Mei2
(1)四川大学激光物理与化学研究所,成都 610064; (2)四川大学激光物理与化学研究所,成都 610064;泸州医学院生物医学工程系,泸州 646000
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