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

Moving from two-dimensional hexagonal boron nitride (2D h-BN) flatlands towards their
quantum sized zero-dimensional (0D) islands, as the newest member of the h-BN family …

Due to its properties, lithium niobate is one of the most suitable material platforms for the
implementation of integrated optical quantum circuits. With the commercialization of lithium …

Quantum imaging is a multifaceted field of research that promises highly efficient imaging in
extreme spectral ranges as well as ultralow‐light microscopy. Since the first proof‐of …

Optical nanoantennas have shown a great capacity for efficient extraction of photons from
the near to the far field, enabling directional emission from nanoscale single-photon …

Second-order nonlinearity in solids gives rise to a plethora of unique physical phenomena
ranging from piezoelectricity and optical rectification to optical parametric amplification …

We present a gradient-based optimization strategy to design broadband grating couplers.
Using this method, we are able to reach, and often surpass, a user-specified target …

Nonlinear optics lies at the heart of classical and quantum light generation. The invention of
periodic poling revolutionized nonlinear optics and its commercial applications by enabling …

Polarization entanglement holds significant importance for photonic quantum technologies.
Recently emerging subwavelength nonlinear quantum light sources, eg, GaP and LiNbO 3 …

High complexity, dense integrated nanophotonic circuits possessing strong non-linearities
are desirable for a breadth of applications in classical and quantum optics. In this work, we …