Full noise characterization of a low-noise two-stage SQUID amplifier

Articolo
Data di Pubblicazione:
2009
Abstract:
From measurements performed on a low-noise two-stage SQUID amplifier coupled to a high-Q electrical resonator we give a complete noise characterization of the SQUID amplifier around the resonator frequency of 11 kHz in terms of additive, back action and cross-correlation noise spectral densities. The minimum noise temperature evaluated at 135 mK is 10 ¼K and corresponds to an energy resolution of 18 hbar
Tipologia CRIS:
01.01 Articolo in rivista
Keywords:
Optical microcavity; Bragg reflector; Transfer matrix; Erbium
Elenco autori:
Link alla scheda completa:
https://iris.cnr.it/handle/20.500.14243/36955
Pubblicato in:
SUPERCONDUCTOR SCIENCE AND TECHNOLOGY (PRINT)
Journal