L Malik - Optics & Laser Technology, 2020 - Elsevier
Gaussian laser beams have been very successful in various fields including holography where two lasers with frequency difference have been used, but good quality holograms …
We propose a theoretical analysis for the generation of efficient terahertz (THz) radiation by using the nonlinear interaction of an amplitude-modulated Gaussian laser beam with a …
In recent years, terahertz (THz) radiation has become an extremely useful instrument in a variety of domains, including spectroscopy, imaging, and communication, due to its …
HK Malik, T Punia, D Sharma - Electronics, 2021 - mdpi.com
There are a large number of studies for terahertz (THz) radiation generation, but tunable THz sources are still a challenge since it is difficult to tune frequency, focus and intensity of the …
HK Malik, L Devi - Results in Physics, 2020 - Elsevier
Relativistic self focusing and frequency shift of laser beam having super-Gaussian profile in space and Gaussian profile in time is studied in a plasma. The relativistic mass nonlinearity …
L Devi, HK Malik - Journal of Optics, 2023 - iopscience.iop.org
Considering nonlinearities due to relativistic mass variation and ponderomotive force driven depression in the electron density, a model is developed for the self-focusing of a super …
Particle accelerators play a crucial role in modern scientific research, facilitating progress in diverse areas such as fundamental physics and medical treatments. In this study, an intense …
T Punia, D Sharma, HK Malik - IEEE Transactions on Plasma …, 2022 - ieeexplore.ieee.org
Graphite nanoparticles (NPs) in two distinct geometries, ie, cylindrical and spherical, having two different configurations of their basal planes with respect to the electric field of the laser …
In this theoretical study, we investigate the electron plasma wave excitation (EPW) by two copropagating high power laser beams in collisional nanocluster plasma. The interaction of …