Storage and on-demand release of microwaves using superconducting resonators with tunable coupling

Journal Article · Mon Jun 09 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4882646· OSTI ID:22300033

Pierre, Mathieu; Svensson, Ida-Maria; Raman Sathyamoorthy, Sankar; Johansson, Göran; Delsing, Per ^[1]

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1. Department of Microtechnology and Nanoscience (MC2), Chalmers University of Technology, SE-412 96 Göteborg (Sweden)

We present a system which allows to tune the coupling between a superconducting resonator and a transmission line. This storage resonator is addressed through a second, coupling resonator, which is frequency-tunable and controlled by a magnetic flux applied to a superconducting quantum interference device. We experimentally demonstrate that the lifetime of the storage resonator can be tuned by more than three orders of magnitude. A field can be stored for 18 μs when the coupling resonator is tuned off resonance and it can be released in 14 ns when the coupling resonator is tuned on resonance. The device allows capture, storage, and on-demand release of microwaves at a tunable rate.

• OSTI ID: 22300033
• Journal Information: Applied Physics Letters, Vol. 104, Issue 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CAPTURE
COUPLING
LIFETIME
MAGNETIC FLUX
MICROWAVE RADIATION
POWER TRANSMISSION LINES
RESONATORS
SQUID DEVICES
STORAGE
SUPERCONDUCTING DEVICES