2018/08/17 by Vladimir Yu. Fedorov, Fedorov, Vladimir Yu., Stelios Tzortzakis +1
Chemistry · Engineering · Physics and Astronomy · #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Optics (physics.optics) #Spectroscopy and Laser Applications #Terahertz technology and applications
paper · pdf · doi:10.48550/arxiv.1808.05804
openalex publication_date 2018/08/17 · openalex created_date 2018/08/22 · openalex updated_date 2026/07/28
We theoretically study the generation of terahertz (THz) radiation by two-color filamentation of ultrashort laser pulses with different wavelengths. We consider wavelengths in the range from 0.6 to 10.6 μm, thus covering the whole range of existing and future powerful laser sources in the near, mid and far-infrared. We show how different parameters of two-color filaments and generated THz pulses depend on the laser wavelength. We demonstrate that there is an optimal laser wavelength for two-color filamentation that provides the highest THz conversion efficiency and results in generation of extremely intense single cycle THz fields.