Author/Authors :
Day، نويسنده , , P.K. and Leduc، نويسنده , , H.G. and Goldin، نويسنده , , A. and Vayonakis، نويسنده , , T. and Mazin، نويسنده , , B.A. and Kumar، نويسنده , , S. and Gao، نويسنده , , J. and Zmuidzinas، نويسنده , , J.، نويسنده ,
Abstract :
We report on the development of Microwave Kinetic Inductance Detectors (MKIDs) coupled to planar antennas for millimeter/submillimeter wavelengths. The MKID is a relatively new type of superconducting photon detector which is applicable from millimeter-wave frequencies to X-rays. Photons are absorbed in a superconductor, producing quasiparticle excitations, which change the surface reactance (kinetic inductance) of the superconductor. The changes in kinetic inductance are monitored using microwave high-Q thin-film superconducting resonators. Because the MKID is particularly amenable to frequency-domain multiplexing, with likely detector multiplexing factors of ∼ 10 3 or more per cryogenic amplifier, these detectors are well suited for use in large arrays. We have fabricated MKIDs coupled to submillimeter slot-array antennas using microstrip lines and have detected power from a thermal radiation source. We discuss the potential of antenna-coupled MKID arrays for ground and space-based millimeter/submillimeter imaging.
