Quantum capacitance detector: A pair-breaking radiation detector based on the single Cooper-pair box
M. D. Shaw, J. Bueno, P. Day, C. M. Bradford, P. M. Echternach
DOI 10.1103/PhysRevB.79.144511 · Physical Review B
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Abstract
We present a proposed design for a pair-breaking photodetector for far-infrared and submillimeter radiation. Antenna-coupled radiation generates quasiparticles in a superconducting absorber, the density of which are measured using a single Cooper-pair box. Readout is performed using an electromagnetic oscillator or a microwave resonator, which is well suited for frequency multiplexing in large arrays. Theoretical limits to detector sensitivity are discussed and modeled, with predicted sensitivities on the order of 10−21 W/Hz. We anticipate that this detector can be used to address key scientific goals in far-infrared and submillimeter astronomy.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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