Global S&T Development Trend Analysis Platform of Resources and Environment
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 |
引用统计 | |
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). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论