4 papers
IQ Mixer Calibration for Superconducting Circuits
S. W. Jolin, R. Borgani, M. O. Tholén +2
An important device for modulation and frequency translation in the field of circuit quantum electrodynamics is the IQ mixer, an analog component for which calibration is necessary…
Intermodulation spectroscopy as an alternative to pump-probe for the measurement of fast dynamics at the nanometer scale
Riccardo Borgani, David B. Haviland
We present an alternative approach to pump-probe spectroscopy for measuring fast charge dynamics with an atomic force microscope (AFM). Our approach is based on coherent multifrequ…
Fast multifrequency measurement of nonlinear conductance
Riccardo Borgani, Mojtaba Gilzad Kohan, Alberto Vomiero +1
We describe a phase-coherent multifrequency lock-in measurement technique that uses the inverse Fourier transform to reconstruct the nonlinear current-voltage characteristic (IVC)…
Calibrating torsional eigenmodes of micro cantilevers for dynamic measurement of frictional forces
Per-Anders Thorén, Riccardo Borgani, Daniel Forchheimer +1
Non-invasive thermal noise calibration of both torsional and flexural eigenmodes is performed on numerous cantilevers of 10 different types. We show that for all tipless and short-…