F
Felix Friedrich
Researcher at Karlsruhe Institute of Technology
Publications - 8
Citations - 157
Felix Friedrich is an academic researcher from Karlsruhe Institute of Technology. The author has contributed to research in topics: Kinetic inductance & Superconductivity. The author has an hindex of 4, co-authored 6 publications receiving 104 citations.
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Journal ArticleDOI
Circuit quantum electrodynamics of granular Aluminum resonators
Nataliya Maleeva,Lukas Grünhaupt,Thierry Klein,F. Levy-Bertrand,F. Levy-Bertrand,O. Dupré,O. Dupré,Martino Calvo,Martino Calvo,Francesco Valenti,Patrick Winkel,Felix Friedrich,Wolfgang Wernsdorfer,Wolfgang Wernsdorfer,Alexey V. Ustinov,Alexey V. Ustinov,Hannes Rotzinger,Alessandro Monfardini,Alessandro Monfardini,Mikhail V. Fistul,Ioan Pop +20 more
TL;DR: The authors show that resonators made from granular aluminum, which naturally realizes a network of Josephson junctions, have practically useful impedances and nonlinearities.
Journal ArticleDOI
Circuit Quantum Electrodynamics of Granular Aluminum Resonators
Nataliya Maleeva,Lukas Grünhaupt,Thierry Klein,F. Levy-Bertrand,F. Levy-Bertrand,O. Dupré,O. Dupré,Martino Calvo,Martino Calvo,Francesco Valenti,Patrick Winkel,Felix Friedrich,Wolfgang Wernsdorfer,Wolfgang Wernsdorfer,Alexey V. Ustinov,Alexey V. Ustinov,Hannes Rotzinger,Alessandro Monfardini,Alessandro Monfardini,Mikhail V. Fistul,Ioan Pop +20 more
TL;DR: In this paper, the measurement and modeling of circuit quantum electrodynamics properties of Granular Aluminum (GrAl) microwave resonators in a wide frequency range, up to the spectral superconducting gap, is presented.
Journal ArticleDOI
Electrospun Polymer Fiber Lasers for Applications in Vapor Sensing
Sarah Krammer,Fabrice Laye,Felix Friedrich,Christoph Vannahme,Cameron L. C. Smith,Ana Carina Loureiro Mendes,Ioannis S. Chronakis,Joerg Lahann,Joerg Lahann,Anders Kristensen,Heinz Kalt +10 more
TL;DR: In this article, a sensing approach based on laser emission from polymer fiber networks is presented, where the shift of the spectral position of the narrow lasing modes upon uptake of alcohol vapors (model vapors are methanol and ethanol) serves as sensor signal.
Journal ArticleDOI
Onset of phase diffusion in high kinetic inductance granular aluminum micro-SQUIDs
Felix Friedrich,Patrick Winkel,Kiril Borisov,Hannes Seeger,Christoph Sürgers,Ioan Pop,Wolfgang Wernsdorfer,Wolfgang Wernsdorfer +7 more
TL;DR: In this article, the authors performed switching current measurements on DC-SQUIDs, obtained by introducing two identical geometric constrictions in granular aluminum rings of various normal-state resistivities in the range from ρ n = 250-5550 μΩ cm.
Journal ArticleDOI
Onset of phase diffusion in high kinetic inductance granular aluminum micro-SQUIDs.
Felix Friedrich,Patrick Winkel,Kiril Borisov,Hannes Seeger,Christoph Sürgers,Ioan Pop,Wolfgang Wernsdorfer,Wolfgang Wernsdorfer +7 more
TL;DR: In this paper, the authors performed switching current measurements on DC-SQUIDs, obtained by introducing two identical geometric constrictions in granular aluminum rings of various normal-state resistivities.