Journal
OPTICS COMMUNICATIONS
Volume 493, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2021.127016
Keywords
Laser beam shaping; Polarization; Optical vortices
Categories
Funding
- National Key R&D Program of China [2017YFB1002900]
- National Natural Science Foundation of China [62075040]
- China Scholarship Council (CSC)
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This research expands the traditional vector vortex beams and introduces a method for creating generalized vector vortex beams based on the superposition of orthogonal polarized base vectors with different spiral phases. An experimental demonstration of a new optical configuration is provided, eliminating the need for the conventional superposition and coaxial alignment of two laser beams. The proposed light field shows potential applications in optical communication and nanoparticle manipulation, as verified through theoretical derivation and experimental validation.
We extend the existing vector vortex beams and demonstrate the creation of the generalized vector vortex beams, which is based on the superposition of any pair of orthogonal polarized base vectors with different spiral phases. Besides, we propose and experimentally demonstrate a flexible optical configuration, which modulates the generalized vector vortex beams through the phase-only liquid crystal spatial light modulators. Compared with the conventional vectorial modulation techniques, the explicit superposition and coaxial alignment of two laser beams are not required in our scheme. The theoretical derivation based on Jones matrix is demonstrated, and we experimentally verify the distribution of polarization and phase by measuring Stokes parameters and interference fringe, respectively. Such a proposed light field has potential applications in the domains as optical communication, nanoparticle manipulations.
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