Quantum sensing of photonic spin density
- URL: http://arxiv.org/abs/2102.11373v1
- Date: Mon, 22 Feb 2021 21:41:22 GMT
- Title: Quantum sensing of photonic spin density
- Authors: Farid Kalhor, Li-Ping Yang, Leif Bauer, Zubin Jacob
- Abstract summary: Photonic spin density (PSD) in the near-field gives rise to exotic phenomena such as photonic skyrmions, optical spin-momentum locking and unidirectional topological edge waves.
Here, we propose and demonstrate that the nitrogen-vacancy (NV) center in diamond can be used as a quantum sensor for detecting the spinning nature of photons.
- Score: 6.174721516017139
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Photonic spin density (PSD) in the near-field gives rise to exotic phenomena
such as photonic skyrmions, optical spin-momentum locking and unidirectional
topological edge waves. Experimental investigation of these phenomena requires
a nanoscale probe that directly interacts with PSD. Here, we propose and
demonstrate that the nitrogen-vacancy (NV) center in diamond can be used as a
quantum sensor for detecting the spinning nature of photons. This room
temperature magnetometer can measure the local polarization of light in
ultra-subwavelength volumes through photon-spin-induced virtual transitions.
The direct detection of light's spin density at the nanoscale using NV centers
in diamond opens a new frontier for studying exotic phases of photons as well
as future on-chip applications in spin quantum electrodynamics (sQED).
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