Generation of Terahertz Radiation, by a Photoconductive Antenna
V.N. Trukhin a, A.V. Andrianov a and N.N. Zinov'ev a, b
a Ioffe Physico-Technical Institute, Polytekhnicheskaya 26, St. Petersburg, 194021, Russia
b Department of Physics, University of Durham, Durham DH1 3LE, UK
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Received: 26 08 2007;
We report on the first principle calculations of photocarriers kinetics in a photoconductive antenna excited by an ultrashort optical laser pulse. The solution of non-equilibrium Boltzmann equation is used to derive the expression for the irradiated electric field. The analysis reveals the important role of non-uniform photocarrier distribution inside the active layer in the formation of the terahertz radiation from the emitter in both collinear and anti-collinear directions.
DOI: 10.12693/APhysPolA.113.921
PACS numbers: 42.65.Ky, 41.60.-m, 78.47.-p