A perspective on twisted light from on-chip devices
Hui Yang,
Zhenwei Xie,
Hairong He,
Qiang Zhang,
Xiaocong Yuan
Affiliations
Hui Yang
Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Zhenwei Xie
Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Hairong He
Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Qiang Zhang
Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Xiaocong Yuan
Nanophotonics Research Centre, Shenzhen Key Laboratory of Micro-Scale Optical Information Technology and Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
Twisted light, with spatially varying phase or polarization, has given rise to various applications, such as micro-particle manipulation, optical communication, and quantum information processing. In recent decades, to bring these applications into reality, various configurations such as conventional spiral phase plates, computer-generated holograms, metasurface-based setups, and on-chip devices have been explored for twisted light generation. In this Perspective, we focus on recent progress in generation twisted light from typical on-chip devices such as waveguides, plasmonic nanoslits, whispering gallery mode configurations, and meta-gratings. We aim at highlighting the key research advances and technical challenges in on-chip twisted light generation. Finally, we outlook the likely future trend of this emerging research field.
