85 citations · 306 across the 11 of their papers we have counts for
6 papers · 1 filter
On-chip single photon emission from an integrated semiconductor quantum dot into a photonic crystal waveguide
Andre Schwagmann, Sokratis Kalliakos, Ian Farrer +4
We demonstrate the in-plane emission of highly-polarized single photons from an InAs quantum dot embedded into a photonic crystal waveguide. The spontaneous emission rates are Purc…
Determination of Edge Purity in Bilayer Graphene Using micro-Raman Spectroscopy
Milan Begliarbekov, Onejae Sul, Sokratis Kalliakos +2
Polarization resolved micro-Raman spectroscopy was carried out at the edges of bilayer graphene. We find strong dependence of the intensity of the G band on the incident laser pola…
A molecular state of correlated electrons in a quantum dot
Sokratis Kalliakos, Massimo Rontani, Vittorio Pellegrini +6
Correlation among particles in finite quantum systems leads to complex behaviour and novel states of matter. One remarkable example is predicted to occur in a semiconductor quantum…
Optical Anisotropy of Electronic Excitations in Elliptical Quantum Dots
Achintya Singha, Vittorio Pellegrini, Sokratis Kalliakos +4
The authors report that anisotropic confining potentials in laterally-coupled semiconductor quantum dots (QDs) have large impacts in optical transitions and energies of inter-shell…
Optical control of energy-level structure of few electrons in AlGaAs/GaAs quantum dots
Sokratis Kalliakos, Vittorio Pellegrini, Cesar Pascual Garcia +3
Optical control of the lateral quantum confinement and number of electrons confined in nanofabricated GaAs/AlGaAs quantum dots is achieved by illumination with a weak laser beam th…
Observation of low-lying excitations of electrons in coupled quantum dots
Cesar Pascual Garcia, Sokratis Kalliakos, Vittorio Pellegrini +4
Tunneling excitations of electrons in dry-etched modulation-doped AlGaAs/GaAs coupled quantum dots (QDs) are probed by resonant inelastic light scattering. A sequence of intra- and…