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Dispersion‐Enabled Symmetry Switching of Photonic Angular‐Momentum Coupling by Jixiang Cai; Fei Zhang; Mingbo Pu; Yan Chen; Yinghui Guo; Ting Xie; Xingdong Feng; Baoshan Jiang; Xiaoliang Ma; Xiong Li; Honglin Yu; Xiangang Luo is a Engineering article available to read on EtoBox.

What is Dispersion‐Enabled Symmetry Switching of Photonic Angular‐Momentum Coupling about?

Photonic spin-orbit interactions describe the interactions between spin angular momentum and orbital angular momentum of photons, which play essential roles in subwavelength optics. However, the influence of frequency dispersion on photonic angular-momentum coupling is rarely studied. Here, by elaborately designing the contribution of the geometric phase and waveguide propagation phase, the dispersion-enabled symmetry switching of photonic angular-momentum coupling is experimentally demonstrated. This notion may induce many exotic phenomena and be found in enormous applications, such as the spin-Hall effect, optical calculation, and wavelength division multiplexing systems. As a proof-of-concept demonstration, two metadevices, a multi-channel vectorial vortex beam generator and a phaseonly hologram, are applied to experimentally display optical double convolution, which may offer additional degrees of freedom to accelerate computing and a miniaturization configuration for optical convolution without collimation operation. These results may provide a new opportunity for complex vector optical field manipulation and calculation, optical information coding, light-matter interaction ma

Who reads Dispersion‐Enabled Symmetry Switching of Photonic Angular‐Momentum Coupling?

Author

Jixiang Cai; Fei Zhang; Mingbo Pu; Yan Chen; Yinghui Guo; Ting Xie; Xingdong Feng; Baoshan Jiang; Xiaoliang Ma; Xiong Li; Honglin Yu; Xiangang Luo

Publisher

Wiley

Published

2023

Language

EN

Field

Engineering (Physical Sciences)