title: Half-cycle-pulse terahertz emission from an ultrafast laser plasma in a solid target.
abstract: Coherent far-IR radiation is observed upon the generation of dense laser-driven plasma in a solid copper target. The coherent radiation demonstrates a strong half-cycle-pulse nature with temporal dynamics as fast as 150 fs. Comparisons between the data and radiation models are discussed. This measurement demonstrates a new method of performing ultrafast laser-plasma diagnostics in solid targets.
authors.affiliation: Department of Physics and Astronomy, University of Delaware, 217 Sharp Laboratory, Newark, Delaware 19716, USA.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Gao
authors.forename: Tara
authors.initials: T
authors.lastname: Drake
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Chen
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Decamp