title: Pulse contrast enhancement of high-energy pulses by use of a gas-filled hollow waveguide.
abstract: Using nonlinear ellipse rotation in a gas-filled hollow waveguide, we have increased the pulse contrast of a microjoule femtosecond laser pulse by several orders of magnitude. This scheme offers a number of advantages over competing techniques, including a high degree of tunability that allows for a broad range of input pulse parameters, higher throughput, greater stability, and an output pulse with high spatial quality that is compressible to a quarter of the original temporal width.
authors.forename: D
authors.initials: D
authors.lastname: Homoelle
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Gaeta
authors.forename: V
authors.initials: V
authors.lastname: Yanovsky
authors.forename: G
authors.initials: G
authors.lastname: Mourou