Relativistic Self-Focusing of Hermite-cosh-Gaussian Laser Beam in Magnetoplasma with Exponential Plasma Density Ramp

Niti Kant,Shivani Vij,Sudarshan Kumar Chakravarti,Juleshwar Prasad Kushwaha,Vishal Thakur

Fig. 4 Dependence of the beam width parameter ($f$) on normalized propagation distance ($\xi$) at different values of $\omega_{p0}/\omega$ for (a) $m=0$, (b) $m=1$, and (c) $m=2$. The restof parameters are same as considered in Fig. 1.