Developing Graphene Josephson Microwave Single-Photon Detectors for Quantum Information Science

Abstract

During this program we (1) Developed milliKelvin optical scanning capabilities, (2) Demonstrated single-infrared photon calorimetry, a departure from conventional single-photon detectors (SPDs) where energy resolution is no longer limited by an energy gap, (3) Detected single-infrared (1550 nm) photons through graphene calorimetry with quantum efficiencies of ~90 , (4)Studied the spatial heat propagation in graphene, (5) Augmented the operation temperature of JJ-based SPD up to 1.2 K, a new record for this SPD platform, (6) Studied theoretically the dissipative heat diffusion of the heat from a single photon so that we can predict and optimize the SPD performance.

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Document Details

Document Type
Technical Report
Publication Date
Aug 06, 2023
Accession Number
AD1216462

Entities

People

  • Dirk Englund

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Detection
  • Detectors
  • Efficiency
  • Electrons
  • Graphene
  • Information Science
  • Josephson Junctions
  • Laser Spots
  • Microwaves
  • Optical Scanning
  • Quantum Efficiency
  • Quantum Information
  • Quantum Information Science
  • Quantum Tunneling
  • Scanners
  • Scanning

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Quantum Computing