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Proceedings Paper

Acousto-electric single-photon detector
Author(s): P. D. Batista; M. Gustafsson; M. M. de Lima; M. Beck; V. I. Talyanskii; R. Hey; P. V. Santos; M P. Delsing; J. Rarity
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Paper Abstract

We propose a novel concept for a semiconductor-based single-photon detector for quantum information processing, which is capable of discriminating the number of photons in a light pulse. The detector exploits the charge transport by a surface acoustic wave (SAW) in order to combine a large photon absorption area (thus providing high photon collection efficiency) with a microscopic charge detection area, where the photo generated charge is detected with resolution at the single electron level using single electron transistors (SETs). We present preliminary results on acoustic transport measured in a prototype for the detector as well as on the fabrication of radio-frequency single-electron transistors (RFSETs) for charge detection. The photon detector is a particular example of acousto-electric nanocircuits that are expected to be able to control both the spatial and the spin degrees of freedom of single electrons. If realized, these circuits will contribute substantially to a scalable quantum information technology.

Paper Details

Date Published: 11 May 2007
PDF: 13 pages
Proc. SPIE 6583, Photon Counting Applications, Quantum Optics, and Quantum Cryptography, 658304 (11 May 2007); doi: 10.1117/12.722789
Show Author Affiliations
P. D. Batista, Paul-Drude-Institut für Festkörperelektronik (Germany)
M. Gustafsson, Chalmers Univ. of Technology (Sweden)
M. M. de Lima, Paul-Drude-Institut für Festkörperelektronik (Germany)
Univ. of Valencia (Spain)
M. Beck, Paul-Drude-Institut für Festkörperelektronik (Germany)
V. I. Talyanskii, Univ. of Cambridge (United Kingdom)
R. Hey, Paul-Drude-Institut für Festkörperelektronik (Germany)
P. V. Santos, Paul-Drude-Institut für Festkörperelektronik (Germany)
M P. Delsing, Chalmers Univ. of Technology (Sweden)
J. Rarity, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 6583:
Photon Counting Applications, Quantum Optics, and Quantum Cryptography
Miloslav Dusek; Ivan Prochazka; Mark S. Hillery; Alan L. Migdall; Wolfgang P. Schleich; Alexandre Pauchard, Editor(s)

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