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Conferences > EQEC > 1994 > QThG > QThG13
  • European Quantum Electronics Conference
  • Technical Digest Series (Optica Publishing Group, 1994),
  • paper QThG13

THz radiation patterns from semiconductor dipole antennas

P. Uhd Jepsen and S. R. Keiding

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Abstract

Small semiconductor based dipole antennas, driven by a femtosecond laser, have recently proven to be useful and versatile sources for pulsed far-infrared radiation. The bandwidth of these THz-pulses extends from 50 GHz to 5 THz. In order to collimate the generated THz-pulse, the most common solution is to attach a hyperhemispherical lens directly to the semiconductor substrate supporting the antenna.1 In this work we have measured the angular distribution of radiation from such a system, and compared it with a theoretical calculation.

© 1994 IEEE

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