QUICK-RESPONSE SUPERCONDUCTING SINGLE PHOTON DETECTOR WITH STRIPE RESISTORS

摘要

FIELD: physics.;SUBSTANCE: invention pertains to devices for registering individual photons in the visible and infrared ranges. The superconducting single photon detector consists of a substrate, terminal pads on the substrate, and stripes made from superconductor films, put on the substrate between the terminal pads. The ends of the stripes are joined to the terminal pads. Each stripe is joined to one of the terminal pads through the corresponding stripe resistor. Resistors for all stripes are the same, and the resistors have resistance of 0.5-500 Ohm. Depending on the kinetic inductance of the superconductor stripes, the resistance are chosen in such a way that, switching into resistive state of one of the stripes does not lead to the other stripes also switching into resistive state i.e. the value of current in these stripes does not exceed the value of the critical current.;EFFECT: increased response speed of the detector.;6 cl, 2 dwg, 1 tbl