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 …

Complex polarization states of photon pairs are indispensable in various quantum
technologies. Conventional methods for preparing desired two-photon polarization states …

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 …

Miniaturized entangled photon sources, in particular based on subwavelength
metasurfaces, are highly demanded for the development of integrated quantum photonics …

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 …

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

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 …

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

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

Optical metasurfaces open new avenues for the precise wavefront control of light for
integrated quantum technology. Here, we demonstrate a hybrid integrated quantum …