• 专利标题:   Superconducting transition-edge thermal sensor, comprises a superconducting film defining an active area (SC) for incidence of quanta there, in that superconducting film is made of a superconductor exhibiting a charge carrier density.
  • 专利号:   EP3819950-A1, US2021140833-A1, CN112781736-A
  • 发明人:   EFETOV D, SEIFERT P, LU X, DURAN J, STEPANOV P, EFETOV D K
  • 专利权人:   FUNDACIO INST CIENCIES FOTONIQUES, FUNDACIO INST CIENCIES FOTONIQUES, PHOTONICS RES FOUND
  • 国际专利分类:   G01J005/20, H01L039/10, H01L039/12, G01K007/00, G01J011/00
  • 专利详细信息:   EP3819950-A1 12 May 2021 H01L-039/10 202141 Pages: 23 English
  • 申请详细信息:   EP3819950-A1 EP382979 08 Nov 2019
  • 优先权号:   EP382979

▎ 摘  要

NOVELTY - The superconducting transition-edge thermal sensor, comprises a superconducting film defining an active area for incidence of quanta there, in that superconducting film is made of a superconductor exhibiting a charge carrier density below 1013 cm-2 and an electronic heat capacity below 103 kb at the critical temperature of superconductor. The superconductor is formed by two layers of two-dimensional crystals stacked on top of another. Two electrodes (E1,E2) are provided and shaped to form an antenna for allowing or improving electromagnetic coupling between the active area and electromagnetic radiation. The active region is embedded in a ring resonator, Fabry-Perot cavity, photonic crystal cavity or other type of optical cavity, for optical coupling with electromagnetic radiation. USE - Superconducting transition-edge thermal sensor. ADVANTAGE - A sharp active area transition is highly desirable, to achieve an optimum detection performance as it enables to generate detectable voltage pulses even from weak photon-induced heat pulses. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of a sensor for which the superconductor is formed by two layers of graphene twisted by an angle of 1.1 degree.