Abstract
The two-dimensional angular distributions of terahertz radiation at various frequencies emitted from the plasma of a single-color filament are obtained under different experimental conditions. It is shown that the radiation pattern at each terahertz frequency weakly depends on the laser beam numerical aperture and pulse energy. Increasing the laser pulse energy leads to the growth in the terahertz emission energy, including in the multiple filamentation regime. Furthermore, over the entire range of considered pulse energies, the dependence is close to linear for different terahertz frequencies and various laser beam numerical apertures. Our results allow to scale the terahertz emission from single-color filament in spectroscopy and other applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
