4 papers
Low-temperature AFM with a microwave cavity optomechanical transducer
Ermes Scarano, Elisabet K. Arvidsson, August K. Roos +4
We demonstrate AFM imaging with a microcantilever force transducer where an integrated superconducting microwave resonant circuit detects cantilever deflection using the principles…
Sensing force gradients with cavity optomechanics while evading backaction
Elisabet K. Arvidsson, Ermes Scarano, August K. Roos +2
We study force-gradient sensing with a coherently driven mechanical resonator and phase-sensitive detection of motion through the two-tone backaction evading measurement of cavity…
Intrinsic Kerr amplification for microwave electromechanics
Ermes Scarano, Elisabet K. Arvidsson, August K. Roos +2
Electromechanical transduction gain of 21 dB is realized in a micro-cantilever resonant force sensor operated in the unresolved-sideband regime. Strain-dependent kinetic inductance…
Temperature dependence of microwave losses in lumped-element resonators made from superconducting nanowires with high kinetic inductance
Ermes Scarano, Elisabet K. Arvidsson, August K. Roos +2
We study the response of several microwave resonators made from superconducting NbTiN thin-film meandering nanowires with large kinetic inductance, having different circuit topolog…