2013/11/07 by D. C. Schmadel, Don Schmadel, Schmadel, Don +5
Engineering · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Photonic and Optical Devices #Plasmonic and Surface Plasmon Research #Terahertz technology and applications #cond-mat.mes-hall
paper · pdf · doi:10.48550/arxiv.1311.1605
6 pages, 3 figures
openalex publication_date 2013/11/07 · arxiv created 2014/02/06 · arxiv updated 2014/02/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a terahertz radiation source based on the excitation of plasma resonances in graphene structures by means of mixing two NIR laser signals with a THz difference frequency. The process is the photo-thermo-electric effect which has recently been demonstrated to be operative at THz frequencies in graphene. An antenna couples the THz radiation out of the sub-wavelength graphene element and into the far field. The emission is monochromatic with a bandwidth determined by that of the NIR laser sources. The output power of the device as a function of the emitter frequency is estimated at tens of microWatts.