title: Terahertz line detection by a microlens array coupled photoconductive antenna array.
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.
authors.affiliation: Fraunhofer Institute for Applied Optics and Precision Engineering IOF, Jena, Germany. boris.pradarutti@iof.fraunhofer.de
authors.forename: B
authors.initials: B
authors.lastname: Pradarutti
authors.forename: R
authors.initials: R
authors.lastname: Müller
authors.forename: W
authors.initials: W
authors.lastname: Freese
authors.forename: G
authors.initials: G
authors.lastname: Matthäus
authors.forename: S
authors.initials: S
authors.lastname: Riehemann
authors.forename: G
authors.initials: G
authors.lastname: Notni
authors.forename: S
authors.initials: S
authors.lastname: Nolte
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann