title: Tunable narrowband THz pulse generation in scalable large area photoconductive antennas.
abstract: The generation and characterization of narrowband THz pulses by means of chirped pulse difference frequency generation in Auston-switch type photoconductive antennas is reported. Using optical pulses with energies in the range from 1 nJ to 1 µJ, we generate THz pulses with up to 50 pJ in energy and electric field strengths on the order of 1 kV/cm. Two emitter concepts are investigated and circumvention of the fast saturation for small area excitation by scaling of the THz emitter is demonstrated.
authors: Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden Rossendorf, P.O. Box 510119, 01314 Dresden, Germany.
authors: Johannes
authors: J
authors: Krause
authors: Martin
authors: M
authors: Wagner
authors: Stephan
authors: S
authors: Winnerl
authors: Manfred
authors: M
authors: Helm
authors: Dominik
authors: D
authors: Stehr
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D007834:Lasers; D008962:Models, Theoretical; D055095:Optics and Photonics; D055053:Terahertz Radiation