Asymmetric Superimposed Optical Vortex Beam Emission at Exceptional Point

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Mirror-symmetric microring resonators perturbed by periodically spaced scatterers induce symmetric optical vortex superimposition states. In this letter, we theoretically and numerically show that a broken mirror symmetric resonator can induce asymmetric optical orbital angular momentum (OAM) superimposition states. The asymmetric OAM behaviour is due to the chiral and non-orthogonal resonator modes at exceptional point. Potential applications of the OAM beam emission behavior could include information processing and particle micromanipulation with functionality-switching capabilities.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2017-05
Language
English
Article Type
Article
Keywords

ORBITAL ANGULAR-MOMENTUM; RESONATOR; EMITTERS; LASER; GENERATOR; FIBER; MODEL

Citation

IEEE PHOTONICS TECHNOLOGY LETTERS, v.29, no.10, pp.818 - 821

ISSN
1041-1135
DOI
10.1109/LPT.2017.2686583
URI
http://hdl.handle.net/10203/223902
Appears in Collection
EE-Journal Papers(저널논문)
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