Intense multicycle THz pulses generated by laser-produced nanoplasmas
Plasma Physics
2022-10-27 v1
Abstract
We present a novel scheme to obtain robust, narrowband, and tunable THz emission by using a nano-dimensional overdense plasma target that is irradiated by two counter-propagating detuned laser pulses. So far, no narrowband THz sources with a field strength of GV/m-level have been reported from laser-solid interaction. We report intense THz pulses at beat-frequency (30THz) generated due to strong plasma current produced by the beat ponderomotive force in the colliding region, with an unprecedentedly high peak field strength of 11.9GV/m and spectral width from 2D PIC simulations. Such an extremely bright narrowband THz source is suitable for various ambitious applications.
Keywords
Cite
@article{arxiv.2210.14551,
title = {Intense multicycle THz pulses generated by laser-produced nanoplasmas},
author = {Manoj Kumar and Hyung Seon Song and Jaeho Lee and Dohyun Park and Hyyung Suk and Min Sup Hur},
journal= {arXiv preprint arXiv:2210.14551},
year = {2022}
}