A new method of probing mechanical losses of coatings at cryogenic temperatures.

Autor: Galliou S; FEMTO-ST Institute, Univ. Bourgogne Franche-Conté, CNRS, ENSMM 25000 Besançon, France., Deléglise S; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Goryachev M; ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia., Neuhaus L; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Cagnoli G; Laboratoire des Matériaux Avancés, CNRS/IN2P3, 69622 Villeurbanne, France., Zerkani S; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Dolique V; Laboratoire des Matériaux Avancés, CNRS/IN2P3, 69622 Villeurbanne, France., Bon J; FEMTO-ST Institute, Univ. Bourgogne Franche-Conté, CNRS, ENSMM 25000 Besançon, France., Vacheret X; FEMTO-ST Institute, Univ. Bourgogne Franche-Conté, CNRS, ENSMM 25000 Besançon, France., Abbé P; FEMTO-ST Institute, Univ. Bourgogne Franche-Conté, CNRS, ENSMM 25000 Besançon, France., Pinard L; Laboratoire des Matériaux Avancés, CNRS/IN2P3, 69622 Villeurbanne, France., Michel C; Laboratoire des Matériaux Avancés, CNRS/IN2P3, 69622 Villeurbanne, France., Karassouloff T; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Briant T; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Cohadon PF; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Heidmann A; Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 75005 Paris, France., Tobar ME; ARC Centre of Excellence for Engineered Quantum Systems, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia., Bourquin R; FEMTO-ST Institute, Univ. Bourgogne Franche-Conté, CNRS, ENSMM 25000 Besançon, France.
Jazyk: angličtina
Zdroj: The Review of scientific instruments [Rev Sci Instrum] 2016 Dec; Vol. 87 (12), pp. 123906.
DOI: 10.1063/1.4972106
Abstrakt: A new method of probing mechanical losses and comparing the corresponding deposition processes of metallic and dielectric coatings in 1-100 MHz frequency range and cryogenic temperatures is presented. The method is based on the use of high-quality quartz acoustic cavities whose internal losses are orders of magnitude lower than any available coating nowadays. The approach is demonstrated for chromium, chromium/gold, and multilayer tantala/silica coatings. The Ta 2 O 5 /SiO 2 coating has been found to exhibit a loss angle lower than 1.6 × 10 -5 near 30 MHz at 4 K. The results are compared to the previous measurements.
Databáze: MEDLINE
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