We presented a theoretical study of the laser beam dynamics in a nonlinear medium with carbon nanotubes under the influence of external electromagnetic fields. Application of the method of slowly varying amplitudes to the nonlinear wave equation allowed us to derive a modified parabolic equation for the spatiotemporal evolution of a Gaussian beam. The influence of electric and magnetic fields on the main radiation parameters, including the maximum intensity, is estimated. The results demonstrate a significant dependence of the radiation characteristics on both the laser beam parameters themselves (frequency, initial amplitude) and the magnitude of the external constant electric field.
N. N. Konobeeva (Wed,) studied this question.
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