Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

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Terahertz emission based on large-area photoconductive emitters illuminated via beam interference

Krauß, N.; Haas, M.; Niemeyer, L.; Winnerl, S.; Helm, M.; Dekorsy, T.


The use of beam interference in combination with large-area photoconductive emitters for the generation of pulsed terahertz radiation is presented. An interference pattern with a periode twice that of the terahertz emitter is generated with a transmission phase grating, placed directly in front of the photoconductive emitter. This way, efficient terahertz generation is achieved with a single metallization layer and a single lithography step in the fabrication technology of the THz emitter.

Keywords: THz photoconductive emitter; large-area THz emitter


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