Abstract
We use time-resolved charge detection methods to detect single photons absorbed by a double quantum dot (DQD). With the ability to tune the energy levels in the DQD, the frequency of the detected photon can be continuously varied between 10 and 80 GHz. The working principle of this device is demonstrated by measuring the radiation emitted by a nearby quantum point contact driven out-of-equilibrium at large bias voltage. Show more
Publication status
publishedExternal links
Journal / series
Physica E: Low-dimensional Systems and NanostructuresVolume
Pages / Article No.
Publisher
ElsevierEvent
Subject
Semiconductor quantum dots; Single charge detection; Photon-assisted tunneling; Shot noiseOrganisational unit
03439 - Ensslin, Klaus / Ensslin, Klaus
08835 - Ihn, Thomas (Tit.-Prof.)
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