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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Photonic spin-controlled multifunctional shared-aperture antenna array.

Elhanan Maguid¹, Igor Yulevich¹, Dekel Veksler¹

¹Micro and Nanooptics Laboratory, Faculty of Mechanical Engineering, and Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 32000, Israel.

Science (New York, N.Y.)

|April 23, 2016

Summary

This summary is machine-generated.

Researchers developed shared-aperture metasurfaces combining radar concepts with photonics. This enables precise control over light properties, creating multifunctional devices for advanced optical applications.

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Last Updated: Mar 22, 2026

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Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures

Published on: November 21, 2019

Area of Science:

Photonics and Nanotechnology
Optics and Photonics
Metasurfaces

Background:

Shared-aperture phased antenna arrays, originating from radar technology, offer potential for enhanced functionality in photonics.
The integration of shared-aperture concepts with geometric phase phenomena, driven by spin-orbit interaction, facilitates the creation of photonic spin-control multifunctional metasurfaces.

Purpose of the Study:

To investigate the implementation of photonic spin-control multifunctional metasurfaces using shared-aperture concepts.
To achieve helicity-controlled multiple structured wavefronts, including vortex beams with orbital angular momentum, through novel metasurface designs.

Main Methods:

Adoption of a thinning technique in shared-aperture synthesis.
Investigation of interleaved sparse nanoantenna matrices.
Exploitation of spin-enabled asymmetric harmonic response.
Utilization of multiplexed geometric phase profiles.

Main Results:

Successful demonstration of helicity-controlled multiple structured wavefront generation.
Achievement of vortex beams carrying orbital angular momentum.
Enabled simultaneous measurement of spectrum characteristics and light polarization state.
Realization of integrated on-chip spectropolarimetric analysis.

Conclusions:

The developed shared-aperture metasurface platform provides a novel pathway for advanced nanophotonic functionalities.
This approach integrates concepts from radar and photonics to create versatile optical devices.
The study highlights the potential for multifunctional metasurfaces in controlling light properties with spin-based mechanisms.