title: Transit time of chirped pulses through one-dimensional, nonabsorbing barriers.
abstract: Experiments show that the transit times of chirped, narrow-band pulses that move across nonabsorbing, one-dimensional barriers are modified dramatically by the interplay between the chirp and the transmission function of the sample. In an experiment we monitored 0.9-ns chirped, nearly Gaussian pulses as they traversed a 450-mum GaAs etalon. At certain wavelengths pulse transit times can be superluminal or even negative. To explain these phenomena we have proposed a generalization of the transit time for chirped pulses that is still meaningful even when the transit times are superluminal or negative. Our predictions agree well with the experimental results.
authors.forename: G
authors.initials: G
authors.lastname: D'Aguanno
authors.forename: M
authors.initials: M
authors.lastname: Centini
authors.forename: M J
authors.initials: MJ
authors.lastname: Bloemer
authors.forename: K
authors.initials: K
authors.lastname: Myneni
authors.forename: M
authors.initials: M
authors.lastname: Scalora
authors.forename: C M
authors.initials: CM
authors.lastname: Bowden
authors.forename: C
authors.initials: C
authors.lastname: Sibilia
authors.forename: M
authors.initials: M
authors.lastname: Bertolotti