42 citations · 108 across the 5 of their papers we have counts for
5 papers
Evolution of topological edge modes from honeycomb photonic crystals to triangular-lattice photonic crystals
Jin-Kyu Yang, Yongsop Hwang, Sang Soon Oh
The presence of topological edge modes at the interface of two perturbed honeycomb photonic crystals with symmetry is often attributed to the different signs of Berry curvatu…
Fabrication of photonic nanostructures from hexagonal boron nitride
Johannes E. Fröch, Yongsop Hwang, Sejeong Kim +2
Growing interest in devices based on layered van der Waals (vdW) materials is motivating the development of new nanofabrication methods. Hexagonal boron nitride (hBN) is one of the…
Effects of Fano resonance on optical chirality of planar plasmonic nanodevices
Yongsop Hwang, Seojoo Lee, Sejeong Kim +2
The effects of Fano resonance on the optical chirality of planar plasmonic nanodevices in the visible wavelength range are experimentally observed and theoretically explained. The…
Optical chirality from dark-field illumination of planar plasmonic nanostructures
Yongsop Hwang, Ben Hopkins, Dapeng Wang +4
Dark-field illumination is shown to make planar chiral nanoparticle arrangements exhibit circular dichroism in extinction analogous to true chiral scatterers. Circular dichrosim is…
Plasmonic edge states: an electrostatic eigenmode description
Daniel E. Gomez, Yongsop Hwang, Jiao Lin +2
We consider periodic arrangements of metal nanostructures and study the effect of periodicity on the localised surface plasmon resonance of the structures within an electrostatic e…