High-purity orbital angular momentum states from a visible metasurface laser

Darryl Naidoo,Hend Sroor,Yao-Wei Huang,Bereneice Sephton,Adam Vallés,Vincent Ginis,Qiwen Zhan,Cheng-Wei Qiu,Antonio Ambrosio,Federico Capasso,Andrew Forbes

High-purity orbital angular momentum states from a visible metasurface laser

2021

Darryl Naidoo
Hend Sroor
Yao-Wei Huang
Bereneice Sephton
Adam Vallés
Vincent Ginis
Qiwen Zhan
Cheng-Wei Qiu
Antonio Ambrosio
Federico Capasso
Andrew Forbes

We demonstrate the selection of twisted light carrying Orbital Angular Momentum (OAM) of l = 100 with an 88% purity by arbitrary spin-to-orbit coupling inside a visible solid-state laser with a metasurface device.

Keywords:

Second-harmonic generation
Physics
Atomic physics
Angular momentum
Coupling
Laser

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