quasi-particle detector [¦kwä·zē ¦pard·ǝ·kǝl di´tek·tǝr] ENGINEERING A detector of electromagnetic radiation at wavelengths close to 1 millimeter, based on the tunneling of single electrons (more precisely, quasi-particles) through a tunnel junction consisting of an oxide barrier between two superconductors, with a responsivity of one tunneling electron for each microwave photon absorbed. |