SLAPS: Superconducting Large Area Phonon Sensors

Hot-electron microcalorimeters for x-ray and phonon detection

“…In order to obtain a useful absorption area, it may be advantageous to use a large area superconducting absorber and a small area metal "trap". 10,11 Phonons which are incident on the superconductor will then break Cooper pairs, which will eventually diffuse into the normal metal and then dissipate their energy to the electrons. Here one obtains a large absorption area from the superconductor, but with no contribution to the electronic heat capacity.…”

Surface defects characterization in a quantum wire by coherent phonons scattering

“…Recently, several authors [4][5][6][7][8][9][10] have shown that multiple scattering and quantum interference become very important to describe transport phenomena, localization of Incoming wave electron states in disordered media [1,[4][5][6][7][8][9][10] and to investigate structural properties of low-dimensional samples [4,[6][7][8][9]. In all cases, the defects lead to energy trapping and confinement in the neighbourhood of the perturbed defect region, which occurs in the form of localized phonons.…”