Enhancing the modal purity of orbital angular momentum photons
Orbital angular momentum (OAM) beams with topological charge ℓ are commonly generated and detected by modulating an incoming field with an azimuthal phase profile of the form exp(iℓϕ) by a variety of approaches. This results in unwanted radial modes and reduced power in the desired OAM mode. Here, w...
Main Authors: | Isaac Nape, Bereneice Sephton, Yao-Wei Huang, Adam Vallés, Cheng-Wei Qiu, Antonio Ambrosio, Federico Capasso, Andrew Forbes |
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Format: | Article |
Language: | English |
Published: |
AIP Publishing LLC
2020-07-01
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Series: | APL Photonics |
Online Access: | http://dx.doi.org/10.1063/5.0005597 |
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