title: Electro-optic detection of femtosecond electromagnetic pulses by use of poled polymers.
abstract: We report the generation and coherent detection of freely propagating ultrashort baseband electromagnetic pulses. Using optical rectification in ?110? GaAs for wideband emission and electro-optic sampling in a poled polymer for wideband detection, we demonstrate spectral sensitivity that extends from the far infrared (lambda~100 mum) to ~33 THz(lambda = 9 mum) . Over a band of nearly 20 THz, a relatively flat frequency response is observed. We discuss issues that limit the response bandwidth.
authors.forename: Hua
authors.initials: H
authors.lastname: Cao
authors.forename: Tony F
authors.initials: TF
authors.lastname: Heinz
authors.forename: Ajay
authors.initials: A
authors.lastname: Nahata