4 papers
Fabrication and characterization of Nb/Al-AlN /Nb superconducting tunnel junctions
Alexey Pavolotsky, François Joint, Udupa Sujit Manjunatha +6
We report a Nb/Al-AlN /Nb superconducting tunnel junction process in which the AlN barrier is formed by plasma nitridation using a compact microwave electron-cyclotron-resonance (E…
3D-Structured Polyethylene Windows for Low-Loss Transmission in Wideband Cryogenic Terahertz Systems
François Joint, Igor Lapkin, Pierre-Baptiste Vigneron +10
We present the design, fabrication, and characterisation of a broadband vacuum window and infrared filter based on ultra-high molecular weight polyethylene (UHMWPE) for millimeter…
Microwave dynamics of gated Al/InAs superconducting nanowires
Vittorio Buccheri, François Joint, Kazi Rafsamjani Amin +9
Several experiments have recently reported on gate-tunable superconducting properties in metallic devices, holding promise for the realization of cryogenic switches, tunable resona…
Terahertz Antenna Impedance Matched to a Graphene Photodetector
François Joint, Kunyi Zhang, Jayaprakash Poojali +9
Developing low-power, high-sensitivity photodetectors for the terahertz (THz) band that operate at room temperature is an important challenge in optoelectronics. In this study, we…