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GaAs provides a versatile platform for developing on-chip integrated quantum-optical circuits. In this paper we review progress in developing spin-photon interfaces, on-chip beam-splitters and coherent single photon sources based on GaAs photonics.
Photonic crystal cavities (PhC) incorporating self-assembled quantum dots (QDs) are of interest for quantum information applications, optoelectronics and to study cavity quantum electrodynamics (QED). Unpolarized cavities will be required for some particular applications such as the creation of polarization-entangled quantum states. Although the H1 cavity is predicted to have an unpolarized fundamental...
In this study we have fabricated tungsten containing nano-wires using focused electron and ion beams from a tungsten hexacarbonyl precursor. The temperature dependent conductive properties of the wires have been investigated. Although a superconducting transition (at ∼5.5 K) has been observed in ion beam deposited wires, electron beam deposited wires display non-metallic conduction properties consistent...
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