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Here we propose a novel scheme based on recent advances in integrated photonics for highly efficient modulation of the temperature of a thermionic emitter with photons. In the proposed scheme, we evanescently couple thermionic emitters to optical cavities. This method enables efficient coupling between photons in the cavity and thermionic emitter. Specifically, this enables order of magnitude enhancements...
We report the characterization of optical coupling efficiency and the absorption coefficient of fiber-coupled superconducting nanowire single photon detector with an optical cavity, which limit the system detection efficiency. The small lenses were applied to compact fiber-coupled package and the efficient optical coupling higher than 95% were confirmed experimentally. The absorption coefficient was...
Cavity Quantum Electrodynamics (CQED) is an attractive platform for the realization of efficient light-matter quantum interfaces at the single photon level. Such interfaces are key elements for the development of quantum information and communication science due to the need for swapping information between flying and stationary qubits. Here, we report on the first CQED demonstration of collective...
The authors report on CQED experiments where solid state features of ion Coulomb crystals are exploited for detailed studies of the coherent collective coupling of ions of such crystals to different transverse modes of the cavity. By using extremely prolate ion Coulomb crystals oriented along the cavity axis with a radial extension of only a few tens of microns, the spatial profiles of different cavity...
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