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 . We anticipate that this detector can be used to address key scientific goals in far-infrared and submillimeter astronomy.
4 More- Received 29 December 2008
- Corrected 5 May 2009
DOI:https://doi.org/10.1103/PhysRevB.79.144511
©2009 American Physical Society
Corrections
5 May 2009