Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface

Jinyong Ma; Jinliang Ren; Jihua Zhang; Jiajun Meng; Caitlin McManus-Barrett; Kenneth B. Crozier; Andrey A. Sukhorukov

doi:10.1186/s43593-024-00080-8

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Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface

eLight Vol. 5, (2025)

Research Article | Updated：2025-12-01

- Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface
- Affiliations：
- Author bio：
  
  g andrey.sukhorukov@anu.edu.au
- Funds：
- DOI：10.1186/s43593-024-00080-8
  CLC：
- Received：03 December 2024，
  
  Revised：2024-12-03，
  
  Accepted：16 December 2024，
  
  Published Online：10 February 2025，
  
  Published：2025-12
- Accepted：
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Jinyong Ma, Jinliang Ren, Jihua Zhang, et al. Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface[J]. eLight, 2025, 5.
DOI：

Jinyong Ma, Jinliang Ren, Jihua Zhang, et al. Quantum imaging using spatially entangled photon pairs from a nonlinear metasurface[J]. eLight, 2025, 5. DOI： 10.1186/s43593-024-00080-8.

摘要

Abstract

Nonlinear metasurfaces with subwavelength thickness were recently established as versatile platforms for the enhanced and tailorable generation of entangled photon pairs. The small dimensions and inherent stability of integrated metasurface sources are attractive for free-space applications in quantum communications

sensing

and imaging

yet this remarkable potential remained unexplored. Here

we formulate and experimentally demonstrate the unique benefits and practical potential of nonlinear metasurfaces for quantum imaging at infrared wavelengths

facilitating an efficient protocol combining ghost and all-optical scanning imaging. The metasurface incorporates a subwavelength-scale silica metagrating on a lithium niobate thin film. Its distinguishing feature is the capability to all-optically scan the photon emission angle in the direction across the grating simply by tuning the pump beam wavelength. Simultaneously

the photon emission is broad and anti-correlated along the grating direction

allowing for ghost imaging. Thereby

we reconstruct the images of 2D objects using just a 1D detector array in the idler path and a bucket detector in the signal path

by recording the dependencies of photon coincidences on the pump wavelength. Furthermore

we theoretically demonstrate the quantum imaging of objects with an ultra-large field of view and improved imaging resolution. Remarkably

the corresponding number of resolution cells can exceed the performance of quantum ghost imaging with conventional bulky crystals by over four orders of magnitude. The demonstrated concept can be extended to multi-wavelength operation and other applications such as quantum object tracking

paving the way for advancements in quantum technologies using ultra-compact nanostructured metasurfaces.

关键词

Keywords

references

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