Enhanced forward THz yield from the long DC-biased femtosecond filament

Авторы: Mitina E., Uryupina D., Nikolaeva I., Shipilo D., Panov N., Ushakov A., Volkov R., Kosareva O., Savelev Andrei
Журнал: Optics and Laser Technology
Том: 159
Год издания: 2022
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Номер статьи: 108949
DOI: 10.1016/j.optlastec.2022.108949
Аннотация: We observed huge, almost two orders of magnitude, increase in the energy of the forward terahertz (THz) emission by the long femtosecond filament if transverse electrostatic field is applied along its full length. This proves summation of emission both from different parts of a single filament and from multiple filaments. The observed THz radiation has a narrow angular shape with a maximum in the direction of laser radiation and a spectrum in the range of 0.05–0.3 THz with a maximum at about 0.1 THz. Numerical simulations based on the UPPE well explain the experimental findings.Keywords: Femtosecond filamentation; Terahertz radiation
Добавил в систему: Савельев-Трофимов Андрей Борисович

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