title: Enhancement of narrow-band terahertz radiation from photoconducting antennas by optical pulse shaping.
abstract: We report the use of optical pulse shaping to convert single femtosecond pulses into lower-intensity pulse sequences for excitation of photoconductive dipole antennas, which results in the generation of bursts of tunable narrow-band free-space terahertz radiation. Our experiments demonstrate that the use of such pulse sequences can significantly enhance the spectral amplitude of the narrow-band terahertz radiation by avoiding the saturation effects that occur with single-pulse excitation. Our technique also provides the capability for terahertz wave-form shaping.
authors.forename: Y
authors.initials: Y
authors.lastname: Liu
authors.forename: S G
authors.initials: SG
authors.lastname: Park
authors.forename: A M
authors.initials: AM
authors.lastname: Weiner