Mixing with the radio frequency single-electron transistor

L. J. Swenson, D. R. Schmidt, J. S. Aldridge, D. K. Wood, A. N. Cleland

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By configuring a radio frequency single-electron transistor as a mixer, we demonstrate a unique implementation of this device, that achieves good charge sensitivity with large bandwidth about a tunable center frequency. In our implementation we achieve a measurement bandwidth of 16 MHz, with a tunable center frequency from 0 to 1.2 GHz, demonstrated with the transistor operating at 300 mK. Ultimately this device is limited in center frequency by the RC time of the transistor's center island, which for our device is ~1.6 GHz, close to the measured value. The measurement bandwidth is determined by the quality factor of the readout tank circuit.

Original languageEnglish (US)
Article number173112
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number17
StatePublished - Apr 25 2005

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    Swenson, L. J., Schmidt, D. R., Aldridge, J. S., Wood, D. K., & Cleland, A. N. (2005). Mixing with the radio frequency single-electron transistor. Applied Physics Letters, 86(17), 1-3. [173112]. https://doi.org/10.1063/1.1923188