4 papers
Epitaxial CeO2 Films as a Host for Quantum Applications
Pralay Paul, Kusal M. Abeywickrama, Nisha Geng +18
In highly purified host, the coherence of quantum emitters is ultimately limited by hyperfine interactions between the emitter and lattice nuclei possessing non-zero nuclear magnet…
Simultaneous anti-bunched and super-bunched photons from a GaAs Quantum dot in a dielectric metasurface
Sanghyeok Park, Oleg Mitrofanov, Kusal M. Abeywickrama +9
Semiconductor quantum dots host a rich manifold of excitonic complexes, including neutral excitons that emit anti-bunched single photons and charged exciton complexes capable of pr…
First Principle Study of Alkaline Metal Intercalation in Twisted Bilayer Graphene
N K R Perera, K M Abeywickrama, W W P De Silva
The intercalant alkaline metals, Ca, Sr, & Ba, are sources of a periodic perturbation on the bilayer graphene, which leads to the formation of an N-type semiconductors. The twist a…
Effects of Interfacial Distance and Electric Field on Graphene-Silicene Hybrid Structures
K M Abeywickrama, P K D D P Pitigala, W W P De Silva
Graphene is a two-dimensional (2D) semimetal with high mobility in charge carriers due to the existence of Dirac points. Silicene is another promising material, with properties ana…