Quantum light sources are essential building blocks for many quantum technologies,
enabling secure communication, powerful computing, and precise sensing and imaging …

Here we present a roadmap on Photonic metasurfaces. This document consists of a number
of perspective articles on different applications, challenge areas or technologies underlying …

Generation of entangled photons through spontaneous parametric down-conversion
(SPDC) from micro-and nanoscale sources offers unprecedented freedom in quantum state …

Entangled photon states are a fundamental resource for optical quantum technologies and
investigating the fundamental predictions of quantum mechanics. Up to now such states are …

Quantum metaphotonics has emerged as a cutting-edge subfield of meta-optics employing
subwavelength resonators and their planar structures, such as metasurfaces, to generate …

Nonlinear metasurfaces have recently been established as a new platform for generating
photon pairs via spontaneous parametric down-conversion. While for classical harmonic …

Here we demonstrate the efficient photon-pair generation via spontaneous parametric down
conversion from a semiconductor metasurface supporting dual quasibound states in the …

We consider a generation of two-particle quantum states in the process of spontaneous
parametric down-conversion of light by a dielectric nanoparticle with a bulk χ (2) response …

We develop a fully vectorial and non-paraxial formalism to describe spontaneous parametric
down-conversion in nonlinear thin films. The formalism is capable of treating slabs with a …

Quantum light sources are essential building blocks for many quantum technologies,
enabling secure communication, powerful computing, precise sensing and imaging. Recent …