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Optics Letters

Optics Letters


  • Vol. 20, Iss. 8 — Apr. 15, 1995
  • pp: 807–809

Radiation patterns from lens-coupled terahertz antennas

P. Uhd Jepsen and S. R. Keiding  »View Author Affiliations

Optics Letters, Vol. 20, Issue 8, pp. 807-809 (1995)

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We report on investigations of the angular distribution of the radiation emitted from a terahertz antenna system equipped with a truncated spherical silicon lens. The pattern is calculated by wide-angle interference principles and Huygens–Fresnel diffraction theory. Experimental determination of the radiation pattern is performed by spatially resolved terahertz time-domain spectroscopy. Good agreement between theory and experiment is obtained, and we find that the terahertz beam can be represented by a Gaussian beam emitted from a circular aperture equal to the diameter of the lens.

© 1995 Optical Society of America

Original Manuscript: September 27, 1994
Published: April 15, 1995

P. Uhd Jepsen and S. R. Keiding, "Radiation patterns from lens-coupled terahertz antennas," Opt. Lett. 20, 807-809 (1995)

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