Subdiffraction Quantum Imaging with Undetected Photons

Abstract

We propose a nonlinear imaging scheme with undetected photons that overcomes the diffraction limit by transferring near-field information at one wavelength to far-field information of a correlated photon with a different wavelength generated through spontaneous photon-pair generation. At the same time, this scheme allows for retrieval of high-contrast images with zero background, making it a highly sensitive scheme for imaging of small objects at challenging spectral ranges with subdiffraction resolutions.

References in corpus (2)

• Highly confined low-loss plasmons in graphene-boron nitride heterostructures
• A fully automated dual-tip scanning near-field optical microscope for localized optical excitation and detection in the visible and near-infrared