67 citations · 105 across the 4 of their papers we have counts for
5 papers
Cryogenic wafer probing below one Kelvin: Characterization of normal-metal Coulomb blockade thermometers at wafer scale
Lassi Lehtisyrjä, Renan P. Loreto, Juho Luomahaara +11
Coulomb blockade thermometers (CBTs) have attracted more interest in recent years, as the demand for sub-one Kelvin thermometry has increased, especially due to the prevalence of d…
A scalable non-superconducting tunnel junction technology
Juho Luomahaara, Kristupas Razas, Omid Sharifi Sedeh +15
Tunnel junctions are one of the key elements of chip-scale microsystems serving various technologies from classical microelectronics to quantum information. Aluminium and its oxide…
Multiplexed readout of kinetic inductance bolometer arrays
Hannu Sipola, Juho Luomahaara, Andrey Timofeev +4
Kinetic inductance bolometer (KIB) technology is a candidate for passive sub-millimeter wave and terahertz imaging systems. Its benefits include scalability into large 2D arrays an…
Side-wall spacer passivated sub-um Josephson junction fabrication process
Leif Grönberg, Mikko Kiviranta, Visa Vesterinen +5
We present a structure and a fabrication method for superconducting tunnel junctions down to the dimensions of 200 nm using i-line UV lithography. The key element is a side-wall-pa…
Kinetic Inductance Magnetometer
Juho Luomahaara, Visa Vesterinen, Leif Grönberg +1
Ultrasensitive magnetic field detection is utilized in the fields of science, medicine and industry. We report on a novel magnetometer relying on the kinetic inductance of supercon…