Josephson junction infrared single-photon detector

doi:10.1126/science.abf5539

GSTDTAP > 气候变化

DOI	10.1126/science.abf5539
	Josephson junction infrared single-photon detector
	Evan D. Walsh; Woochan Jung; Gil-Ho Lee; Dmitri K. Efetov; Bae-Ian Wu; K.-F. Huang; Thomas A. Ohki; Takashi Taniguchi; Kenji Watanabe; Philip Kim; Dirk Englund; Kin Chung Fong
	2021-04-23
发表期刊	Science
出版年	2021
英文摘要	Josephson junctions are simple superconducting devices comprising an insulator or semiconductor separating two superconducting regions. They form the workhorse of superconducting technologies and are exquisitely sensitive to magnetic field. One long-sought proposal has been to use these devices to detect light. Walsh et al. have realized a photosensitive Josephson junction based on graphene that is capable of sensing single infrared photons. Such a photosensitive Josephson junction is expected to operate as a high-speed, low-power consumption optical interconnect for communication between superconducting-based supercomputers and quantum computers. Science , this issue p. [409][1] Josephson junctions are superconducting devices used as high-sensitivity magnetometers and voltage amplifiers as well as the basis of high-performance cryogenic computers and superconducting quantum computers. Although device performance can be degraded by the generation of quasiparticles formed from broken Cooper pairs, this phenomenon also opens opportunities to sensitively detect electromagnetic radiation. We demonstrate single near-infrared photon detection by coupling photons to the localized surface plasmons of a graphene-based Josephson junction. Using the photon-induced switching statistics of the current-biased device, we reveal the critical role of quasiparticles generated by the absorbed photon in the detection mechanism. The photon sensitivity will enable a high-speed, low-power optical interconnect for future superconducting computing architectures. [1]: /lookup/doi/10.1126/science.abf5539
领域	气候变化 ; 资源环境
URL	查看原文
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/324083
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Evan D. Walsh,Woochan Jung,Gil-Ho Lee,et al. Josephson junction infrared single-photon detector[J]. Science,2021.
APA	Evan D. Walsh.,Woochan Jung.,Gil-Ho Lee.,Dmitri K. Efetov.,Bae-Ian Wu.,...&Kin Chung Fong.(2021).Josephson junction infrared single-photon detector.Science.
MLA	Evan D. Walsh,et al."Josephson junction infrared single-photon detector".Science (2021).