2023/04/05 by Clayton D. Moss, Moss, Clayton D., Shayne A. Sorenson +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Optics (physics.optics) #Plasma Physics (physics.plasm-ph) #Superconducting and THz Device Technology #Terahertz technology and applications
paper · pdf · doi:10.48550/arxiv.2304.02703
openalex publication_date 2023/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a numerical study on plasma generation of THz radiation utilizing multiple light pulses of various wavelengths in an optical scheme that is readily achievable in a tabletop environment. To achieve coherent THz emission it is necessary to carefully consider all the wavelengths involved in a multi-pulse setup. Previous theoretical work has explored ideal waveforms and electric field symmetries for optimal efficiency in generating THz from plasma [Phys. Rev. Lett. 114 183901 (2015)]. In practice such setups are quite delicate and prone to instability. We show that wavelength combinations with lower theoretical efficiency can more easily produce stable THz pulses in a tabletop environment combining readily available near-infrared wavelengths.