Nonlinear Conformal Transformation for In Situ IR‐Visible Detection of Orbital Angular Momentum (Laser Photonics Rev. 17(4)/2023)

Nonlinear Optics In article number 22005656, Yanqing Lu, Wei Chen, Yuan Liu, and colleagues demonstrated the enhanced measurement of orbital angular momentum by extending conformal transformation into nonlinear region. This infrared-visible detection scheme of optical vortices enables a record-high separation efficiency and could be applied in both classical and quantum areas.