Terahertz line detection by a microlens array coupled photoconductive antenna array | Zendy

B. Pradarutti | Zendy; Ralf Müller | Zendy; Wiebke Freese | Zendy; Gabor Matthäus | Zendy; S. Riehemann | Zendy; Gunther Notni | Zendy; Stefan Nolte | Zendy; Andreas Tünnermann | Zendy

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Terahertz line detection by a microlens array coupled photoconductive antenna array

Author(s) -

B. Pradarutti,

Ralf Müller,

Wiebke Freese,

Gabor Matthäus,

S. Riehemann,

Gunther Notni,

Stefan Nolte,

Andreas Tünnermann

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.018443

Subject(s) - microlens , optics , terahertz radiation , photoconductivity , optoelectronics , antenna (radio) , materials science , laser , antenna array , excitation , physics , lens (geology) , telecommunications , quantum mechanics , computer science

We present THz ultrashort pulse detection by a photoconductive antenna array consisting of 16 photoconductive antennas. The efficient excitation of the photoconductive antennas has been realized by a microlens array which generates 16 single spots from the exciting fs-laser beam. This combination of optoelectronics and microoptics improves the detection efficiency by an order of magnitude in comparison to an excitation by a line focus.

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