Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
Volume 40, Issue 9, Pages 1706-1713Publisher
Optica Publishing Group
DOI: 10.1364/JOSAA.496477
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This paper generates a type of double helico-conical beam (HCB) by binarizing the modified helico-conical phase (MHCP). The diffraction patterns of the double HCBs and multi-helix beams were analyzed theoretically and experimentally, showing that their relative positions can be adjusted arbitrarily by introducing a blazed grating and the number and relative positions of multi-helix beams can be controlled by the number of superimposed MHCP profiles and the azimuth factor. This arrayed HCB has potential applications in optical manipulation and multiplexed holography.
In this paper, we generate a type of double helico-conical beam (HCB) by binarizing the modified helico-conical phase (MHCP). The diffraction patterns of the double HCBs were analyzed theoretically and experimentally. The relative position of the double HCBs can be adjusted arbitrarily by introducing a blazed grating only. In addition, the superposition of multiple binary MHCPs can be used to generate multi-helix beams. Accordingly, the diffraction patterns of the multi-helix beams were also analyzed theoretically and experimentally. The results demonstrated that the number and relative position of multi-helix beams can be adjusted by the number of superimposed MHCP profiles and the azimuth factor theta j, respectively. This kind of arrayed HCB will be potentially applied in the fields of optical manipulation and multiplexed holography. (c) 2023 Optica Publishing Group
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