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Multichannel balanced electro-optic detection for Terahertz imaging

 
: Pradarutti, B.; Müller, R.; Matthäus, G.; Brückner, C.; Riehemann, S.; Notni, G.; Nolte, S.; Tünnermann, A.

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Postprint (764 KByte; PDF; )

Optics Express 15 (2007), No.26, pp.17652-17660
ISSN: 1094-4087
English
Journal Article, Electronic Publication
Fraunhofer IOF ()
fibre amplifier; THZ pulse; 1060 NM; generation; radiation; beam

Abstract
We present THz imaging with 1D electro-optic sampling of ultrashort THz pulses by multichannel balanced detection. Using a lock-in technique, it combines the advantage of a high signal to noise ratio along with the fast acquisition time of multichannel detection. The object is probed by a line focus and the resolution can be adjusted. The performance of the system is demonstrated exemplarily by imaging two objects.

: http://publica.fraunhofer.de/documents/N-70257.html