Generation of arbitrary perfect Poincaré beams

We propose a method to generate arbitrary perfect Poincaré beams using one spatial light modulator (SLM). A polarization beam splitter is used to generate two polarization beams that are orthogonally (x and y) polarized. Half of the SLM helps shape the x-polarized beam; simultaneously, the other hal...

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Bibliographic Details
Published in:Journal of applied physics 2019-02, Vol.125 (7)
Main Authors: Li, Delin, Feng, Shaotong, Nie, Shouping, Chang, Chenliang, Ma, Jun, Yuan, Caojin
Format: Article
Language:English
Subjects:
Applied physics
Beams (radiation)
Poincare spheres
Polarization
Rings (mathematics)
Spatial light modulators
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Summary:We propose a method to generate arbitrary perfect Poincaré beams using one spatial light modulator (SLM). A polarization beam splitter is used to generate two polarization beams that are orthogonally (x and y) polarized. Half of the SLM helps shape the x-polarized beam; simultaneously, the other half of the SLM shapes the y-polarized beam. By adding different or the same spiral phases to the orthogonally polarized beams, any point on the Poincaré surface can be reached. The proposed approach is experimentally evaluated. The ring diameter remains the same when different polarization orders and topological charges are programmed. The generation of perfect Poincaré beams including fundamental Poincaré sphere, high-order Poincaré sphere, and hybrid Poincaré sphere are demonstrated in our system.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.5079850