All-dielectric metamaterials and metasurfaces have been demonstrated as ideal platforms to
manipulate electromagnetic waves and enhance light–matter interaction. Analogous to …

Optical metasurfaces, ie arrays of nanoantennas with sub-wavelength size and separation,
enable the manipulation of light-matter interactions in miniaturized optical components with …

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

High quality (Q) factor optical resonators are indispensable for many photonic devices.
While very large Q-factors can be obtained theoretically in guided-mode settings, free-space …

We reveal that metasurfaces created by seemingly different lattices of (dielectric or metallic)
meta-atoms with broken in-plane symmetry can support sharp high-Q resonances arising …

Symmetry-protected bound states in the continuum (BICs) are nonradiative states with
infinite lifetime and perfect confinement of energy even though lying in the radiation …

Nonlinear nanostructured surfaces provide a paradigm shift in nonlinear optics with new
ways to control and manipulate frequency conversion processes at the nanoscale, also …

Nonradiating sources of energy have traditionally been studied in quantum mechanics and
astrophysics but have received very little attention in the photonics community. This situation …

Over the years, researchers have been exploring ways to artificially design chiral structures
and materials, namely metamaterials and metasurfaces. They exhibit unique optical …

Tailoring optical nonlinear effects (eg, harmonic generation, sum-frequency mixing, etc.) in
the recently emerging all-dielectric platform is important for both fundamental science and …