3 papers
physics.optics2026
Lattice-mismatch Moire laser with strong flatband coupling
Donghwee Kim, Chiwon Shin, Changi Kim +5
Inter-cell and/or interlayer coupling in Moire superlattices can generate flatbands and collective eigenmodes that enable emergent physical phenomena, motivating extensive explorat…
physics.optics2022
Transverse Magnetic Mode Laser in Photonic Crystal Nanobeam Cavity
Taesu Ryu, Hwi-Min Kim, Sang-Woo Ki +2
We first experimentally demonstrated a transverse magnetic (TM) mode laser in a Photonic crystal (PhC) slab structure at room temperature. This study proposes a PhC nanobeam (NB) c…
physics.optics2020
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…