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Proceedings Paper

Multi-channel detection of ultrashort THz-pulses based on photoconductive antennas
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Paper Abstract

We report on multi-channel detection of ultrashort THz pulses by a linear array of 16 photoconductive dipole antennas. The dipole antennas built on low-temperature grown GaAs are excited by a line focus of fs-pulses. By the parallel detection of a complete line of ultrashort THz pulses, the measurement speed of THz ultrashort pulse time domain systems can be accelerated by an order of magnitude. For demonstration, the THz beam profile along the line detector is determined, and its spectral dependence of the electric field distribution is compared and verified by wave-optical simulations.

Paper Details

Date Published: 9 February 2009
PDF: 9 pages
Proc. SPIE 7215, Terahertz Technology and Applications II, 721505 (9 February 2009); doi: 10.1117/12.810245
Show Author Affiliations
Wiebke Freese, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Boris Pradarutti, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Stefan Riehemann, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Hans-Christoph Eckstein, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Gunther Notni, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Stefan Nolte, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tünnermann, Fraunhofer-Institut for Applied Optics and Precision Engineering (Germany)
Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 7215:
Terahertz Technology and Applications II
Kurt J. Linden; Laurence P. Sadwick; Créidhe M. O'Sullivan, Editor(s)

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