Abstract
Femtosecond laser pulse-generated terahertz (THz) wave that undergoes filamentation in air in the presence of a DC bias electric field is composed of ponderomotive force-generated and electric field-induced THz. A threshold for the bias electric field that determines the characteristics of the final THz wave is observed. When the bias electric field strength is lower than the threshold, the THz wave tends to be characterized by the ponderomotive force. Moreover, the property of THz wave is mostly determined by a relatively high bias electric field. A theoretical model based on electrical dynamics has been developed to clarify the competition mechanism of THz wave generation.
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.
