title: Ultrafast interferometric measurements of plasmonic transport in photonic crystals.
abstract: We present a novel time-domain experimental approach to the study of the dynamics of surface electromagnetic wave propagation in a two-dimensional photonic crystal. A surface plasmon polariton is launched by ultrafast laser pulses and propagates into a photonic crystal, the dynamics of which are measured by an interferometric cross-correlation method. Plasmon photonic stopgaps are characterized by a single measurement. The dispersion around the stopgaps is determined with a series of angle-resolved measurements.
authors.forename: Yish-Hann
authors.initials: YH
authors.lastname: Liau
authors.forename: Shunji
authors.initials: S
authors.lastname: Egusa
authors.forename: Norbert F
authors.initials: NF
authors.lastname: Scherer