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Applied Physics Letters / Volume 96 / Issue 10 / DEVICE PHYSICS

Appl. Phys. Lett. 96, 103503 (2010); http://dx.doi.org/10.1063/1.3339163 (3 pages)

Proof of concept of the quantum capacitance detector

J. Bueno, M. D. Shaw, P. K. Day, and P. M. Echternach

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA

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(Received 7 October 2009; accepted 21 January 2010; published online 9 March 2010)

We fabricated and tested a proof-of-concept quantum capacitance detector, a superconducting radiation detector described in a recent publication [ Shaw et al., Phys. Rev. B 79, 144511 (2009) ]. In this concept, quasiparticle tunneling in a single Cooper-pair box is used to measure the density of quasiparticles in a superconducting absorber. We measured and characterized the response of the device to electrical quasiparticle injection obtaining its sensitivity. Moreover, we have converted the sensitivity to electrical noise-equivalent power, which is in the 10−18 W/Hz1/2 range at loading powers between 10−15–10−16 W.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

capacitance, Cooper pairs, quasiparticles, submillimetre wave detectors, superconducting device noise, superconductive tunnelling, superconductor-insulator-superconductor devices

PACS

  • 85.25.Pb

    Superconducting infrared, submillimeter and millimeter wave detectors

  • 07.57.Kp

    Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors

  • 85.25.Cp

    Josephson devices

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3339163

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    M. D. Shaw, J. Bueno, P. K. Day, C. M. Bradford, and P. M. Echternach, Phys. Rev. B 79, 144511 (2009).

    Y. Makhlin, G. Schon, and A. Shnirman, Rev. Mod. Phys. 73, 357 (2001).

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    A. J. Ferguson, N. A. Court, F. E. Hudson, and R. G. Clark, Phys. Rev. Lett. 97, 106603 (2006).

    M. D. Shaw, R. M. Lutchyn, P. Delsing, and P. M. Echternach, Phys. Rev. B 78, 024503 (2008).

    M. D. Shaw, J. F. Schneiderman, J. Bueno, B. S. Palmer, P. Delsing, and P. M. Echternach, Phys. Rev. B 79, 014516 (2009).

    T. Duty, G. Johansson, K. Bladh, D. Gunnarsson, C. Wilson, and P. Delsing, Phys. Rev. Lett. 95, 206807 (2005).

    M. A. Sillanpää, T. Lehtinen, A. Paila, Yu. Makhlin, L. Roschier, and P. J. Hakonen, Phys. Rev. Lett. 95, 206806 (2005).

    R. Barends, S. van Vliet, J. J. A. Baselmans, S. J. C. Yates, J. R. Gao, and T. M. Klapwijk, Phys. Rev. B 79, 020509 (2009).

    R. M. Lutchyn and L. I. Glazman, Phys. Rev. B 75, 184520 (2007).

    A. G. Kozorezov, A. F. Volkov, J. K. Wigmore, A. Peacock, A. Poelaert, and R. den Hartog, Phys. Rev. B 61, 11807 (2000).


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