activity
20182022
most citedThe Nature of Topological Protection in Spin and Valley Hall Insulators

47 citations · 67 across the 8 of their papers we have counts for

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9 papers · 1 filter

physics.optics2022

A machine learning approach to drawing phase diagrams of topological lasing modes

Stephan Wong, Jan Olthaus, Thomas K. Bracht +2

Identifying phases and analyzing the stability of dynamic states are ubiquitous and important problems which appear in various physical systems. Nonetheless, drawing a phase diagra…

physics.optics2021

Non-Abelian charged nodal links in dielectric photonic crystal

Haedong Park, Stephan Wong, Xiao Zhang +1

A nodal link is a special form of a line degeneracy (a nodal line) between adjacent bands in the momentum space of a three-dimensional topological crystal. Unlike nodal chains or k…

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…

physics.optics2020

Topological Bulk Lasing Modes Using an Imaginary Gauge Field

Stephan Wong, Sang Soon Oh

Topological edge modes, which are robust against disorders, have been used to enhance the spatial stability of lasers. Recently, it was revealed that topological lasers can be furt…

physics.optics2020

Integrated and Spectrally Selective Thermal Emitters Enabled by Layered Metamaterials

Yongkang Gong, Kang Li, Nigel Copner +6

Nanophotonic engineering of light-matter interaction at subwavelength scale allows thermal radiation that is fundamentally different from that of traditional thermal emitters and p…

physics.optics2020

Tailoring Topological Edge States with Photonic Crystal Nanobeam Cavities

Yongkang Gong, Liang Guo, Stephan Wong +2

The realization of topological edge states (TESs) in photonic systems has provided unprecedented opportunities for manipulating light in novel manners. The Su-Schrieffer-Heeger (SS…