Measuring the spatiotemporal field of ultrashort Bessel-X pulses.
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.
Bowlan
Pamela
P
Georgia Institute of Technology, School of Physics, 837 State Street, Atlanta, Georgia 30332, USA. pambowlan@gatech.edu
Valtna-Lukner
Heli
H
Lõhmus
Madis
M
Piksarv
Peeter
P
Saari
Peeter
P
Trebino
Rick
R