11 citations · 23 across the 5 of their papers we have counts for
5 papers
Delocalization and re-entrant localization of flat-band states in non-Hermitian disordered lattice models with flat bands
Sangbum Kim, Kihong Kim
We present a numerical study of Anderson localization in disordered non-Hermitian lattice models with flat bands. Specifically we consider one-dimensional stub and two-dimensional…
Direct calculation of the strong Goos-Hänchen effect of a Gaussian light beam due to the excitation of surface plasmon polaritons in the Otto configuration
Sangbum Kim, Kihong Kim
We study theoretically the influence of the surface plasmon excitation on the Goos-Hänchen lateral shift of a -polarized Gaussian beam incident obliquely on a dielectric-metal b…
Giant enhancement of reflectance due to the interplay between surface confined wave modes and nonlinear gain in dielectric media
Sangbum Kim, Kihong Kim
We study theoretically the interplay between the surface confined wave modes and the linear and nonlinear gain of the dielectric layer in the Otto configuration. The surface confin…
Creation and pinning of vortex-antivortex pairs
Sangbum Kim, Chia-Ren Hu, Malcolm J. Andrews
Computer modeling is reported about the creation and pinning of a magnetic vortex-antivortex (V-AV) pair in a superconducting thin film, due to the magnetic field of a vertical mag…
Steady-state and equilibrium vortex configurations, transitions, and evolution in a mesoscopic superconducting cylinder
Sangbum Kim, Chia-Ren Hu, Malcolm J. Andrews
A numerical scheme to study the mixed states in a mesoscopic type-II superconducting cylinder is described. Steady-state configurations and transient behavior of the magnetic vorti…