Generation and application of petal-like structured light based on spatial light modulator

doi:10.52396/JUST-2021-0032

Abstract

Abstract: The phase hologram of petal-like structured light is realized by the circular arrangement of the sector phase mask obtained from the one-dimensional Airy beam.Femtosecond laser is reflected by the spatial light modulator encoded with the designed phase hologram, and then passes through a lens. In this way, petal-like light is formed in the focal plane of the lens. With the proposed phase generation method, one can conveniently adjust the number of lobes of the light field. By introducing the vortex phase in the central region of the phase hologram, the intensity of the structured light can be freely tuned. The microstructures array is prepared by two-photon polymerization with generated structured light. The particle capture experiment enabled by the microstructure array is carried out, and the experimental result unfolds the potential application of the structured light in microfluidic chips.

Key words: Airy beam, structured light, spatial light modulator, two-photon polymerization, particle capture

CLC Number:

O436

FENG Wenfei, JI Shengyun, LI Jiawen, WU Dong, HU Yanlei. Generation and application of petal-like structured light based on spatial light modulator[J]. Journal of University of Science and Technology of China, 2021, 51(10): 747-752.

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