Heterodyne spectroscopy with superconducting single-photon detector
1 Moscow Institute of Physics and Technology, 147000 Dolgoprudny, Russia
2 Moscow State Pedagogical University, 119991 Moscow, Russia
3 National Research University Higher School of Economics, 101000 Moscow, Russia
* Corresponding author: email@example.com
Published online: 13 December 2016
We demonstrate successful operation of a Superconducting Single Photon Detector (SSPD) as the core element in a heterodyne receiver. Irradiating the SSPD by both a local oscillator power and signal power simultaneously, we observed beat signal at the intermediate frequency of a few MHz. Gain bandwidth was found to coincide with the detector single pulse width, where the latter depends on the detector kinetic inductance, determined by the superconducting nanowire length.
© The Authors, published by EDP Sciences, 2017
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