Effect of an external electric field on the coherent terahertz emission from multiple filaments in air
نویسندگان
چکیده
We describe the terahertz emission from multiple filaments in air in the presence of an external electric field. A strong enhancement of the radiated terahertz energy is obtained by the combined effect of terahertz field interference and presence of a static electric field.
منابع مشابه
Coherent and incoherent radial THz radiation emission from femtosecond filaments in air.
We show that the THz radiation emitted in the radial direction by a femtosecond filament created in air is linearly polarized and coherent. By applying an electric field along the filament axis this THz radiation is strongly enhanced and becomes incoherent and not polarized.
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