Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Nature Astronomy

Single photon detection of 1.5 THz radiation with the quantum capacitance detector

P. M. Echternach, Brian J. Pepper, Theodore Reck, Charles Mathias Bradford

Published Nov 2, 2017• 102 citations
Publisher
DOI
10.1038/s41550-017-0294-y

Related papers

Toward THz Single Photon Detection with a Superconducting Nanobolometer

Daniel F. Santavicca, Bertrand Reulet, Boris S. Karasik +5 more

•Apr 1, 2009•0 citations

Superconducting Single Photon Nanowire Detectors Development for IR and THz Applications

I. Milostnaya, Alexander A. Korneev, Michael A. Tarkhov +9 more

Journal of Low Temperature Physics•Jan 18, 2008•16 citations

Microwave Single-Photon Detection Using Superconducting Quantum Circuits

Ivan Iakoupov, Yuichiro Matsuzaki, William J. Munro +1 more

The Japan Society of Applied Physics•Jul 10, 2019•0 citations

Evidence of 1.5 THz single-photon detection in quantum capacitance detectors via telegraph rate distribution asymmetry

Brian J. Pepper, Charles Mathias Bradford, Theodore Reck +1 more

Quantum Capacitance Detectors (QCDs) are shot noise limited terahertz detectors. Radiation breaks Cooper pairs, causing quasiparticle poisoning of a charge qubit, read out by a microwave resonator. We find asymmetry in the distribution of telegraph transition rates, interpreted as resulting from discrete single-photon events.

International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)•Aug 1, 2015•0 citations

Large array of low-frequency readout quantum capacitance detectors

P. M. Echternach, Andrew D. Beyer, Charles Mathias Bradford

Quantum capacitance detectors (QCDs) are photon shot noise-limited terahertz detectors based on a single Cooper-pair box superconducting qubit. The QCD has demonstrated photon shot noise-limited performance for 1.5 THz radiation under loading conditions between 10 − 20 and 10 − 18 W and single-photon detection and counting at that frequency. We report here fabrication and preliminary characterization of a 441 pixel array of QCDs with readout frequencies between 700 and 850 MHz.

Journal of Astronomical Telescopes Instruments and Systems•Jan 6, 2021•17 citations

Waveguide single-photon detectors for integrated quantum photonics

Fiore, Gaggero, Sprengers +8 more

Conference on Lasers and Electro-Optics•Jan 1, 2011•0 citations