# Optical spin-to-orbital angular momentum conversion in ultra-thin metasurfaces with arbitrary topological charges

@article{Bouchard2014OpticalSA, title={Optical spin-to-orbital angular momentum conversion in ultra-thin metasurfaces with arbitrary topological charges}, author={Fr{\'e}d{\'e}ric Bouchard and Israel De Leon and Sebastian A. Schulz and Jeremy Upham and Ebrahim Karimi and Robert W. Boyd}, journal={Applied Physics Letters}, year={2014}, volume={105}, pages={101905} }

Orbital angular momentum associated with the helical phase-front of optical beams provides an unbounded “space” for both classical and quantum communications. Among the different approaches to generate and manipulate orbital angular momentum states of light, coupling between spin and orbital angular momentum allows a faster manipulation of orbital angular momentum states because it depends on manipulating the polarisation state of light, which is simpler and generally faster than manipulating…

## 103 Citations

### Spin-to-orbital angular momentum conversion in dielectric metasurfaces.

- PhysicsOptics express
- 2017

This paper demonstrates high-efficiency Spin-to-Orbital angular momentum-Converters (SOCs) at visible wavelengths based on dielectric metasurfaces and shows for the first time the simultaneous generation of collinear helical beams with different and arbitrary orbital angular momentum.

### Arbitrary spin-to–orbital angular momentum conversion of light

- PhysicsScience
- 2017

A metasurface converter for optical states that transforms polarization states into optical angular momentum states and illustrates a general material-mediated connection between SAM and OAM of light and may find applications in producing complex structured light and in optical communication.

### Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation.

- PhysicsNano letters
- 2017

The proposed nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin-orbit interaction of light in nanoscale devices.

### Generation and detection of orbital angular momentum via metasurface

- PhysicsScientific reports
- 2016

An ultracompact array of elliptical nanoholes is theoretically design and experimentally demonstrated, which could convert the circularly polarized light into the cross-polarized vortex beam and measure the topological charges of orbital angular momentum in a simple manner.

### Photonic spin Hall effect by the spin-orbit interaction in a metasurface with elliptical nano-structures

- Physics
- 2017

The metasurface with elliptical nano-structures containing doubly degenerate geometrical charge is designed to investigate the enhanced spin-orbit optical interactions, numerically as well as…

### Arbitrary optical wavefront shaping via spin-to-orbit coupling

- Physics
- 2016

Converting spin angular momentum to orbital angular momentum has been shown to be a practical and efficient method for generating optical beams carrying orbital angular momentum and possessing a…

### Optical spin-dependent beam separation in cyclic group symmetric metasurface

- Physics
- 2020

Abstract Cross-polarization scattering of a circularly polarized beam from nano-rod introduces a geometric phase to the outgoing beam with opposite circular polarization. By manipulating the spatial…

### Spin-to-orbital angular momentum conversion in harmonic generation driven by intense circularly polarized laser

- PhysicsNew Journal of Physics
- 2020

Spin-to-orbital angular momentum conversion (STOC) is a very important fundamental phenomenon governed by the conservation of total angular momentum (TAM). In optics, this conversion is usually…

### Tailoring Orbital Angular Momentum of Light in the Visible Domain with Metallic Metasurfaces

- Physics
- 2016

Submicron‐thick gold films endowed with subwavelength patterning allow on‐demand topological shaping of light, hence the precise delivery of optical orbital angular momentum. Several kinds of…

### Scheme for media conversion between electronic spin and photonic orbital angular momentum based on photonic nanocavity.

- PhysicsOptics express
- 2018

This scheme proposes a scheme which converts photonic OAM to electronic SAM and vice versa within a single nanophotonic device and shows the potential for realizing an (ultra)compact electronic SAM-photonics OAM interface to accommodate OAM as an additional degree of freedom for quantum information purposes.

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