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Updated: Oct 15, 2025

High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal

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Published on: October 31, 2019

Nanophotonic Materials for Twisted-Light Manipulation.

Haoran Ren¹, Stefan A Maier^2,3

¹MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University, Macquarie Park, NSW, 2109, Australia.

Advanced Materials (Deerfield Beach, Fla.)

|October 30, 2021

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Nanophotonics enables compact devices for generating and detecting twisted light carrying orbital angular momentum (OAM). This advances ultracompact, high-capacity optical and quantum information systems.

Area of Science:

Optics and Photonics
Nanotechnology
Quantum Information Science

Background:

Twisted light, carrying orbital angular momentum (OAM), offers new insights into light-matter interactions and boosts information capacity.
Current OAM technologies use bulky, slow optical elements, limiting system deployment.

Purpose of the Study:

To summarize recent advancements in nanophotonic devices for generating and detecting OAM modes.
To discuss the design principles and challenges in nanophotonic manipulation of twisted light.

Main Methods:

Review of metasurface devices for OAM generation in real and momentum space.
Summary of whispering-gallery-mode microcavities for on-chip vortex emission.
Discussion of plasmonic devices and photodetectors for on-chip OAM detection.

Keywords:

metasurfaces microcavities nanophotonics orbital angular momentum of light plasmonics

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Last Updated: Oct 15, 2025

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Main Results:

Nanophotonics has enabled diverse, compact, and multifunctional devices for OAM manipulation.
Metasurfaces, microcavities, and plasmonic detectors are key nanophotonic approaches.
Significant progress has been made in on-chip OAM generation and detection.

Conclusions:

Nanophotonic devices are crucial for overcoming limitations of traditional OAM systems.
Continued development in nanophotonics will drive ultracompact, high-capacity OAM systems-on-a-chip.
Twisted light manipulation in nanophotonics promises significant impact on future optical and quantum technologies.