Carrier confinement effects of InxGa1-xN/GaN multi quantum disks with GaN surface barriers grown in GaN nanorods
OPTICAL MATERIALS 78 (2018) 365-369
Optical Aharonov-Bohm Oscillations with Disorder Effects and Wigner Molecule in a Single GaAs/AlGaAs Quantum Ring
Chapter in Physics of Quantum Rings, Springer Nature (2018) 231-254
CF2-bridged C60 dimers and their optical transitions
ChemPhysChem Wiley 18:24 (2017) 3540-3543
Abstract:
Fullerene dyads bridged with perfluorinated linking groups have been synthesized through a modified arc-discharge procedure. The addition of Teflon inside an arc-discharge reactor leads to the formation of dyads, consisting of two C60 fullerenes bridged by -CF2- groups. The bridging groups consisting of electronegative atoms, lead to different energy levels and to new features in the photoluminescence spectrum. A suppression of the singlet oxygen photosensitization, indicated that the radiative decay from singlet to singlet state is favoured against the intersystem crossing singlet to triplet transition.Optical fabrication and characterisation of SU-8 disk photonic waveguide heterostructure cavities.
Optics express 25:20 (2017) 24615-24622
Abstract:
In order to demonstrate cavity quantum electrodynamics using photonic crystal (PhC) cavities fabricated around self-assembled quantum dots (QDs), reliable spectral and spatial overlap between the cavity mode and the quantum dot is required. We present a method for using photoresist to optically fabricate heterostructure cavities in a PhC waveguide with a combined photolithography and micro-photoluminescence spectroscopy system. The system can identify single QDs with a spatial precision of ±25 nm, and we confirm the creation of high quality factor cavity modes deterministically placed with the same spatial precision. This method offers a promising route towards bright, on-chip single photon sources for quantum information applications.Deterministic optical polarisation in nitride quantum dots at thermoelectrically cooled temperatures.
Scientific reports 7:1 (2017) 12067-12067