Photo-Dember terahertz emitter excited with an Er:fiber laser

URN to cite this document:: urn:nbn:de:bvb:355-epub-308890

Klatt, G. ; Surrer, B. ; Stephan, D. ; Schubert, Olaf ; Fischer, M. ; Faist, J. ; Leitenstorfer, A. ; Huber, Rupert ; Dekorsy, T.

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Date of publication of this fulltext: 15 Oct 2014 11:32

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Abstract

A terahertz emitter based on the lateral photo-Dember effect is shown to efficiently generateterahertz radiation with a peak frequency of 0.7 THz and an electric field amplitude up to 5 V/cm when excited by 90 fs pulses centered at 1.55 μm. A thin layer of In0.53Ga0.47As grown on InP provides the substrate material in which unidirectional lateral photo-Dember currents are excited. Since ...