Metasurfaces are artificially structured surfaces able to control the properties of light at
subwavelength scales. While, initially, they have been proposed as means to control …

We reveal that strongly enhanced generation of photon pairs with narrow frequency spectra
and sharp angular correlations can be realised through spontaneous parametric down …

Quantum state engineering, the cornerstone of quantum photonic technologies, mainly
relies on spontaneous parametric downconversion and four-wave mixing, where one or two …

We predict theoretically a regime of photon-pair generation driven by the interplay of
multiple bound states in the continuum resonances in nonlinear metasurfaces. This …

All-dielectric optical metasurfaces are a workhorse in nano-optics, because of both their
ability to manipulate light in different degrees of freedom and their excellent performance at …

Rapid progress in the development of metamaterials and metaphotonics allowed bulky
optical assemblies to be replaced with thin nanostructured films, often called metasurfaces …

Metasurfaces based on resonant subwavelength photonic structures enable novel methods
of wavefront control and light focusing, underpinning a new generation of flat-optics devices …

Metasurfaces consisting of nanoscale structures are underpinning new physical principles
for the creation and shaping of quantum states of light. Multiphoton states that are entangled …

Metasurface enables the generation and manipulation of multiphoton entanglement with flat
optics, providing a more efficient platform for large-scale photonic quantum information …

Metasurfaces based on resonant nanophotonic structures have enabled innovative types of
flat-optics devices that often outperform the capabilities of bulk components, yet these …