Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 73: Quantum Technologies (Detectors and Photon Sources) (joint session Q/QI)
Q 73.3: Vortrag
Freitag, 14. März 2025, 15:00–15:15, AP-HS
Ultra-small Nb-based plasmonic superconducting photodetectors arrays — •Philipp Karl1, Sandra Mennle1, Monika Ubl1, Ksenia Weber1, Pavel Ruchka1, Mario Hentschel1, Philipp Flad1, Detlef Born2, Heidemarie Schmidt2, and Harald Giessen1 — 14th Physics Institute, Research Center SCoPE, and IQST, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany — 2Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
Applications based on quantum technologies, such as quantum computing and quantum cryptography, require precise and highly efficient photodetection. We present a superconducting plasmonic perfect absorber detector.
The absorption of our plasmonic structures can be increased by utilizing the plasmonic perfect absorber principle, to achieve up to almost 100% absorption over a wide spectral range.
In addition, our concept is compatible with meander patterns to create scalable pixelated detector arrays. We demonstrate up to 64x64 pixel designs whose spectral range can be tuned from 1 μm up to 11 μm.
Keywords: SNSPDs; Plasmonic structures; Pixelated detector arrays