Metamaterials with a Dirac-like cone dispersion at the center of the Brillouin zone behave
like an isotropic and impedance-matched zero refractive index material at the Dirac-point …

Accidental degeneracy plays an important role in the generation of novel band dispersions.
Photonic structures that exhibit an accidental Dirac-like conical dispersion at the center of …

Semi-Dirac cones, characterized by linear-parabolic dispersions, endow photonic crystals
with many fascinating properties, such as topological transitions and anisotropic …

Thin-film optical diodes are important elements for miniaturizing photonic systems. However,
the design of optical diodes relies on empirical and heuristic approaches. This poses a …

Asymmetric optical responses of photonic systems for forward and backward incidences are
of great importance for practical applications. In this work, we theoretically demonstrate …

In this Letter, we numerically and experimentally demonstrate the carpet cloaking effect by a
rectangular lattice two-dimensional photonic crystal (PC) exhibiting a semi-Dirac cone …

We present an emulation design method for converting asymmetrical transmitters to
nonreciprocal isolators equipped with time-varying metasurfaces. To illustrate the model, we …

Zero-index materials, characterized by near-zero permittivity and/or permeability, represent
a distinctive class of materials that exhibit a range of novel physical phenomena and have …

Modern optical systems are important components of contemporary electronics and
communication technologies, and the design of new systems has led to many innovative …

Materials with near-zero refractive index have attracted much attention over the past decade
due to the fascinating phenomena they enabled, such as energy squeezing in thin …