Modern nanotechnology allows one to scale down various important devices (sensors,
chips, fibers, etc.) and thus opens up new horizons for their applications. The efficiency of …

The rapid developments in nanotechnology and plasmonics allow the manipulation of light
at nanometer scales, such as light propagation and resonances. Differing from the …

It is well established that for symmetry‐protected bound states in the continuum (BICs),
introducing the broken geometry symmetry in a dielectric metasurface transforms such a BIC …

Harnessing the power of symmetry‐protected bound states in the continuum (SP BICs) has
become a focal point in scientific exploration, promising many interesting applications in …

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 …

Recently, twisted bilayer photonic materials have been extensively used for creating and
studying photonic tunability through interlayer couplings. While twisted bilayer photonic …

Bound states in the continuum (BICs) with infinite quality factor (Q-factor) and significant field
enhancement pave the way for realizing highly sensitive optical sensors with enhanced light …

Nanotechnology enables in principle a precise map** from design to device but relied so
far on human intuition and simple optimizations. In nanophotonics, a central question is how …

We achieve reflection-type bound states in the continuum (BICs) in the compound grating
waveguide structure by tuning the excitation of the guided modes. Assisted by the quasi …

High-Q metasurfaces have important applications in high-sensitivity sensing, low-threshold
lasers, and nonlinear optics due to the strong local electromagnetic field enhancements …