title: Dispersion-free pulse propagation in a negative-index material.
abstract: The possibility of controlling the spectral position of the zero group-velocity dispersion point of a negative-index material can be exploited by varying the ratio between the electric and the magnetic plasma frequency to obtain dispersion-free propagation in spectral regions otherwise inaccessible using conventional positive-index materials. Our predictions are confirmed by pulse propagation simulations where all the orders of the complex dispersion of the material are taken into account.
authors.affiliation: Time Domain Corporation, Cummings Research Park, 7057 Old Madison Pike, Huntsville, Alabama 35806, USA. giuseppe.daguanno@timedomain.com
authors.forename: Giuseppe
authors.initials: G
authors.lastname: D'Aguanno
authors.forename: Neset
authors.initials: N
authors.lastname: Akozbek
authors.forename: Nadia
authors.initials: N
authors.lastname: Mattiucci
authors.forename: Michael
authors.initials: M
authors.lastname: Scalora
authors.forename: Mark J
authors.initials: MJ
authors.lastname: Bloemer
authors.forename: Aleksei M
authors.initials: AM
authors.lastname: Zheltikov