Speaker
Evan D. Walsh
(School of Engineering and Applied Sciences, Harvard University)
Description
With its unique band structure endowing it with wideband absorption and exceptionally low heat capacity, graphene is an ideal candidate for the study of single photon detection from the near-infrared regime all the way to the microwave regime. Here we present 1) modeled results demonstrating the promise of the graphene-based Josephon junction (GJJ) as a wideband single photon detector, 2) experimental results demonstrating a GJJ bolometer detecting microwave radiation with few-photon sensitivity, and 3) experimental results demonstrating the ability to switch a GJJ from superconducting to resistive with single near-infrared photons.
Primary authors
Kin Chung Fong
(Raytheon BBN Technologies)
Evan D. Walsh
(School of Engineering and Applied Sciences, Harvard University)
Co-authors
Gil-Ho Lee
(Department of Physics, Pohang University of Science and Technology)
Dmitri K. Efetov
(ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology)
Bae-Ian Wu
(Antenna and Electromagnetic Technology Branch, Sensors Directorate, Air Force Research Laboratory)
Leonardo Ranzani
(Quantum Information Processing Group, Raytheon BBN Technologies)
Mikkel Heuck
(Department of Photonics Engineering, Technical University of Denmark)
Jesse Crossno
(School of Engineering and Applied Sciences, Harvard University)
Takashi Tanaguchi
(National Institute for Materials Science )
Kenji Watanabe
(National Institute for Materials Science)
Thomas A. Ohki
(Quantum Information Processing Group, Raytheon BBN Technologies)
Philip Kim
(Department of Physics, Harvard University)
Dirk Englund
(Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology)
