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

Wiebke Freese; Boris Pradarutti; Stefan Riehemann; Hans-Christoph Eckstein; Gunther Notni; Stefan Nolte; Andreas Tünnermann

doi:10.1117/12.810245

9 February 2009 Multi-channel detection of ultrashort THz-pulses based on photoconductive antennas

Wiebke Freese, Boris Pradarutti, Stefan Riehemann, Hans-Christoph Eckstein, Gunther Notni, Stefan Nolte, Andreas Tünnermann

Author Affiliations +

Proceedings Volume 7215, Terahertz Technology and Applications II; 721505 (2009) https://doi.org/10.1117/12.810245
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

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.

Citation Download Citation

Wiebke Freese, Boris Pradarutti, Stefan Riehemann, Hans-Christoph Eckstein, Gunther Notni, Stefan Nolte, and Andreas Tünnermann "Multi-channel detection of ultrashort THz-pulses based on photoconductive antennas", Proc. SPIE 7215, Terahertz Technology and Applications II, 721505 (9 February 2009); https://doi.org/10.1117/12.810245

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