title: Measuring the spatiotemporal field of ultrashort Bessel-X pulses.
abstract: We present direct measurements of the spatiotemporal electric field of an ultrashort Bessel-X pulse generated using a conical lens (axicon). These measurements were made using the linear-optical interferometric technique SEA TADPOLE, which has micrometer spatial resolution and femtosecond temporal resolution. From our measurements, both the superluminal velocity of the Bessel pulse and the propagation invariance of the central spot are apparent. We verified our measurements with simulations.
authors: Georgia Institute of Technology, School of Physics, 837 State Street, Atlanta, Georgia 30332, USA. pambowlan@gatech.edu
authors: Pamela
authors: P
authors: Bowlan
authors: Heli
authors: H
authors: Valtna-Lukner
authors: Madis
authors: M
authors: Lõhmus
authors: Peeter
authors: P
authors: Piksarv
authors: Peeter
authors: P
authors: Saari
authors: Rick
authors: R
authors: Trebino