LAUSR

In this work, the Terahertz (THz) generation by an intense femtosecond laser pulse in the presence of an external strong magnetic field in gaseous medium is theoretically studied. The simulations indicate that the rotating velocity of the ionized electrons induced by the magnetic field mainly determines the generation of THz radiation, whose central frequency is independent of the direction of the magnetic field. Further investigation shows that the propagation of the THz radiation can be guided by the magnetic field. One of the potential applications of these findings is to offer a new approach to diagnosing the strong magnetic field by measuring the corresponding THz spectra.In this work, the Terahertz (THz) generation by an intense femtosecond laser pulse in the presence of an external strong magnetic field in gaseous medium is theoretically studied. The simulations indicate that the rotating velocity of the ionized electrons induced by the magnetic field mainly determines the generation of THz radiation, whose central frequency is independent of the direction of the magnetic field. Further investigation shows that the propagation of the THz radiation can be guided by the magnetic field. One of the potential applications of these findings is to offer a new approach to diagnosing the strong magnetic field by measuring the corresponding THz spectra.