title: Photoluminescence and terahertz emission from femtosecond laser-induced plasma channels.
abstract: Luminescence as a mechanism for terahertz emission from femtosecond laser-induced plasmas is studied. By using a fully microscopic theory, Coulomb scattering between electrons and ions is shown to lead to luminescence even for a spatially homogeneous plasma. The spectral features introduced by the rod geometry of laser-induced plasma channels in air are discussed on the basis of a generalized mode-function analysis.
authors.affiliation: Arizona Center for Mathematical Sciences and Optical Sciences Center, University of Arizona, Tucson, AZ 85721, USA. hoyer@acms.arizona.edu
authors.forename: W
authors.initials: W
authors.lastname: Hoyer
authors.forename: A
authors.initials: A
authors.lastname: Knorr
authors.forename: J V
authors.initials: JV
authors.lastname: Moloney
authors.forename: E M
authors.initials: EM
authors.lastname: Wright
authors.forename: M
authors.initials: M
authors.lastname: Kira
authors.forename: S W
authors.initials: SW
authors.lastname: Koch