Kinetic inductance current sensor for visible to near-infrared wavelength transition-edge sensor readout

Autor: Szypryt, Paul, Bennett, Douglas A., Florang, Ian Fogarty, Fowler, Joseph W., Giachero, Andrea, Hummatov, Ruslan, Lita, Adriana E., Mates, John A. B., Nam, Sae Woo, O'Neil, Galen C., Swetz, Daniel S., Ullom, Joel N., Vissers, Michael R., Wheeler, Jordan, Gao, Jiansong
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: Single-photon detectors based on the superconducting transition-edge sensor (TES) are used in a number of visible to near-infrared (VNIR) applications, particularly for photon-number-resolving measurements in quantum information science. To be practical for large-scale photonic quantum computing or for future spectroscopic imaging applications in astronomy, the size of VNIR TES arrays must be increased from a few pixels to many thousands. Historically, TES arrays have been read out with multiplexed superconducting quantum interference devices (SQUIDs), but the microsecond-duration pulse signals of VNIR TESs are notoriously difficult to multiplex. In this manuscript, we introduce the kinetic inductance current sensor (KICS), a more readily scalable readout technology that exploits the nonlinear kinetic inductance in a superconducting resonator to make sensitive current measurements. KICS devices can replace SQUIDs for many applications because of their ability to measure fast, high slew-rate signals, their compatibility with standard microwave frequency-division multiplexing techniques, and their relatively simple fabrication. Here, we demonstrate the readout of a VNIR TES using a KICS with $3.7$ $\text{MHz}$ of bandwidth. We measure a readout noise of $1.4$ $\text{pA}/\sqrt{\text{Hz}}$, considerably below the TES noise at frequencies of interest, and a TES energy resolution of $(0.137 \pm 0.001)$ $\text{eV}$ at $0.8$ $\text{eV}$, comparable to resolutions observed with non-multiplexed SQUID readouts.
Comment: 14 pages, 8 figures
Databáze: arXiv
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