title: Electromagnetic radiation from vortex flow in Type-II superconductors.
abstract: We show that a moving vortex lattice, as it comes to a crystal edge, radiates into a free space the harmonics of the washboard frequency, omega(0)=2pi v/a, up to a superconducting gap, Delta/variant Planck's over 2pi. Here v is the velocity of the vortex lattice and a is the intervortex spacing. We compute radiation power and show that this effect can be used for the generation of terahertz radiation and for characterization of moving vortex lattices.
authors.affiliation: Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
authors.forename: L N
authors.initials: LN
authors.lastname: Bulaevskii
authors.forename: E M
authors.initials: EM
authors.lastname: Chudnovsky