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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 18443–18450

Terahertz line detection by a microlens array coupled photoconductive antenna array

B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann  »View Author Affiliations


Optics Express, Vol. 16, Issue 22, pp. 18443-18450 (2008)
http://dx.doi.org/10.1364/OE.16.018443


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Abstract

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.

© 2008 Optical Society of America

OCIS Codes
(040.1240) Detectors : Arrays
(040.2235) Detectors : Far infrared or terahertz
(110.6795) Imaging systems : Terahertz imaging

ToC Category:
Detectors

History
Original Manuscript: August 4, 2008
Revised Manuscript: October 1, 2008
Manuscript Accepted: October 1, 2008
Published: October 24, 2008

Citation
B. Pradarutti, R. Müller, W. Freese, G. Matthäus, S. Riehemann, G. Notni, S. Nolte, and A. Tünnermann, "Terahertz line detection by a microlens array coupled photoconductive antenna array," Opt. Express 16, 18443-18450 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-22-18443


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