• Acta Optica Sinica
  • Vol. 34, Issue 11, 1109001 (2014)
Luo Wei1、*, Cheng Shubo1, Yuan Zhanzhong1, and Tao Shaohua1、2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.3788/aos201434.1109001 Cite this Article Set citation alerts
    Luo Wei, Cheng Shubo, Yuan Zhanzhong, Tao Shaohua. Power-Exponent-Phase Vortices for Manipulating Particles[J]. Acta Optica Sinica, 2014, 34(11): 1109001 Copy Citation Text show less

    Abstract

    An approach of manipulating micro-particles based on the theory of power-exponent-phase vortices (PEPV) is demonstrated experimentally. Phase holograms are generated to produce PEPVs with different topological charges and exponential powers. The holograms are displayed sequentially on a spatial light modulator (SLM) for modulating the incident laser beam. The modulated light beam is Fourier transformed by a lens, and then filtered by a pinhole. The selected diffraction order of the beam is focused on the sample stage of an inverted optical microscope. The experimental results verify that the PEPV beam can be used to optically transport micron-sized particles directionally. The beam is found to possess a unique function in the transportation and collection of micro-particles, and can have extensive practical applications in many fields.
    Luo Wei, Cheng Shubo, Yuan Zhanzhong, Tao Shaohua. Power-Exponent-Phase Vortices for Manipulating Particles[J]. Acta Optica Sinica, 2014, 34(11): 1109001
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