113 citations · 421 across the 20 of their papers we have counts for
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Sign freedom of non-Abelian topological charges in phononic and photonic topological insulators
Haedong Park, Sang Soon Oh
The topological nature of nodal lines in a three-band system can be described by non-Abelian topological charges called quaternion numbers. Due to the gauge freedom of the eigensta…
Self-induced ultrafast electron-hole plasma temperature oscillations in nanowire lasers
Andreas Thurn, Jochen Bissinger, Stefan Meinecke +6
Nanowire lasers can be monolithically and site-selectively integrated onto silicon photonic circuits. To assess their full potential for ultrafast opto-electronic devices, a detail…
Extended frequency range of transverse-electric surface plasmon polaritons in graphene
Zeeshan Ahmad, Egor A. Muljarov, Sang Soon Oh
The dispersion relation of surface plasmon polaritons in graphene that includes optical losses is often obtained for complex wave vectors while the frequencies are assumed to be re…
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…