pulse optics from a few oscillations of the electric field, pulse terahertz radiation, slit diffraction.

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SPECTRAL-TEMPORAL EVOLUTION OF THE ELECTRICAL FIELD OF TERAHERTZ PULSE BY FRAUNHOFER SLIT DIFFRACTION

. , Y. . Grachyov, A. . Gorodetsky, V. G. Bespalov


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Abstract

Time dependencies of the electric field amplitude for terahertz electromagnetic pulse of a few oscillations for various angles of slit diffraction in the far field are theoretically and experimentally obtained. Significant changes in a temporary form of the electric field of pulse with the increasing of diffraction angle have been revealed, as well as corresponding changes in the spectrum. Comparison of the findings shows a good agreement of calculations and experimental results. Obtained outcomes can be used in pulse terahertz optics and spectroscopy.


Keywords: pulse optics from a few oscillations of the electric field, pulse terahertz radiation, slit diffraction.
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