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

@inproceedings{Krau2015TerahertzEB,
  title={Terahertz emission based on large-area photoconductive emitters illuminated via beam interference},
  author={Norbert Krau\ss and Matthias Haas and Stephan Winnerl and M. Helm and Thomas Dekorsy},
  year={2015}
}
The use of beam interference in combination with a large-area photoconductive emitter for the generation of pulsed terahertz (THz) radiation is presented. An interference pattern with a period twice that of the THz emitter is generated with a transmission phase grating, placed directly in front of the photoconductive emitter. This way, efficient THz generation is achieved with a single metallisation layer and a single lithography step in the fabrication technology of the THz emitter.