Physical review. B, Solid state · 1974 · 67 citations · 9 references
Natural SciencesPhysicsCondensed Matter PhysicsPhotonicsSolid State PhysicsQuantum TunnelingSuperconducting MaterialsUltrafast OpticsEnergy Band GapFemtosecond Laser PulsesJosephson TunnelingQuasiparticle LifetimeQuasiparticle StatesSuperconducting GapTunnel JunctionsTunneling Phenomena
The dynamics of quasiparticles in superconductors are studied using Sn-oxide-Sn tunnel junctions excited by 30-ns argon-laser pulses. The recombination lifetime and the closure of the superconducting energy gap as a function of laser power are measured. The relationship of these measurements to current theories of quasiparticle dynamics is discussed.
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