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Q: Fachverband Quantenoptik und Photonik

Q 58: Quantum Optics with Photons I

Q 58.2: Talk

Thursday, March 9, 2023, 14:45–15:00, F442

Quantum characterization of superconducting detectors — •Timon Schapeler and Tim J. Bartley — Institute for Photonic Quantum Systems, Paderborn University, Germany

Single-photon detectors, especially based on superconductivity are indispensable for most quantum applications, which makes characterizing them necessary to ensure proper operation. We show a characterization of superconducting nanowire single-photon detector arrays using quantum detector tomography. We quantify the photon-number-resolving ability through the purity of the detection outcomes. Additionally, we investigate the spectral response of a detector for possible spectroscopic applications.