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Ultrahigh finesse Fabry-Pérot superconducting resonator

Kuhr, S; Gleyzes, S; Guerlin, C; Bernu, J; Hoff, U. B; Deléglise, S; Osnaghi, S; Brune, M; Raimond, J.-M; Haroche, S; Jacques, E; Bosland, P; Visentin, B


The authors have built a microwave Fabry-Pérot resonator made of diamond-machined copper mirrors coated with superconductingniobium. Its damping time (Tc=130ms at 51GHz and 0.8K) corresponds to a finesse of 4.6×10⁹, the highest ever reached for a Fabry-Pérot in any frequency range. This result opens many perspectives for quantum information processing, decoherence and nonlocality studies.

CollectionsANU Research Publications
Date published: 2007-04-17
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.2724816


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