Title :
Hotspot dynamics in current carrying WSi superconducting nanowires
Author :
Marsili, Francesco ; Stevens, Martin J. ; Kozorezov, A. ; Verma, V.B. ; Lambert, C. ; Stern, J.A. ; Horansky, Rob ; Dyer, S. ; Shaw, Matthew D. ; Mirin, Richard P. ; Nam, S.W.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
We measured the temporal dynamics of optically excited hotspots in current-carrying WSi superconducting nanowires as a function of bias current, temperature and excitation wavelength, observing an unexpected effect: hotspot relaxation depends strongly on bias current.
Keywords :
nanowires; superconducting materials; tungsten compounds; WSi; bias current; current carrying WSi superconducting nanowires; hotspot dynamics; hotspot relaxation; optically excited hotspots; temporal dynamics; Current measurement; Detectors; Nanowires; Optical pulses; Superconducting photodetectors; Temperature measurement; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
