Advances and prospects in topological nanoparticle photonics
Topological nanophotonics is a new avenue for exploring nanoscale systems from visible to
THz frequencies, with unprecedented control. By embracing their complexity and fully …
THz frequencies, with unprecedented control. By embracing their complexity and fully …
[HTML][HTML] Higher-order topology in plasmonic Kagome lattices
We study the topological properties of a Kagome plasmonic metasurface, modeled with a
coupled dipole method that naturally includes retarded long range interactions. We …
coupled dipole method that naturally includes retarded long range interactions. We …
Exploiting oriented field projectors to open topological gaps in plasmonic nanoparticle arrays
In the last years there have been multiple proposals in nanophotonics to mimic topological
condensed matter systems. However, nanoparticles have degrees of freedom that atoms …
condensed matter systems. However, nanoparticles have degrees of freedom that atoms …
[HTML][HTML] Dual-band higher-order topological states and four-wave mixing in plasmonic valley-Hall metasurfaces
KK Om, KH Kim - Physics Letters A, 2023 - Elsevier
Higher-order topological states in plasmonic metasurfaces are of great importance in
practice for their tight confinements and high field enhancements, providing many promising …
practice for their tight confinements and high field enhancements, providing many promising …
Classifying topology in photonic crystal slabs with radiative environments
In the recent years, photonic Chern materials have attracted substantial interest as they
feature topological edge states that are robust against disorder, promising to realize defect …
feature topological edge states that are robust against disorder, promising to realize defect …
Breakdown of spin-to-helicity locking at the nanoscale in topological photonic crystal edge states
We measure the local near-field spin in topological edge state waveguides that emulate the
quantum spin Hall effect. We reveal a highly structured spin density distribution that is not …
quantum spin Hall effect. We reveal a highly structured spin density distribution that is not …
Chiral topological surface states on a finite square photonic crystal bounded by air
Chiral, topologically protected, photonic surface states can be found at the boundary
between gyrotropic photonic crystals where a changing magnetic field induces different …
between gyrotropic photonic crystals where a changing magnetic field induces different …
Topological robust corner states of a two-dimensional square lattice with C4 symmetry in fully coupled dipolar arrays
C Luo, HC Li, Y Shen, XH Deng - Europhysics Letters, 2023 - iopscience.iop.org
A profound insight into topological photonic systems will empower us to harness their
maximum potential and discover uncharted topological phenomena. For the square …
maximum potential and discover uncharted topological phenomena. For the square …
Fast decomposed method to devise broadband polarization-conversion metasurface
Designing a broadband, wide-angle, and high-efficient polarization converter with a simple
geometry remains challenging. This work proposes a simple and computationally …
geometry remains challenging. This work proposes a simple and computationally …
Exciting topological edge states by using plane waves in valley-Hall photonic crystal slabs
KH Kim, KK Om - Optics Communications, 2024 - Elsevier
Topological edge states are commonly excited by dipole sources or waveguide couplers. In
practice, however, such near-field excitations are unfavorable and the simplest way is to use …
practice, however, such near-field excitations are unfavorable and the simplest way is to use …