Investigation of broadband terahertz generation from metasurface
Abstract
The nonlinear metamaterials have been shown to provide nonlinear properties with high nonlinear conversion efficiency and in a myriad of light manipulation. Here we study terahertz generation from nonlinear metasurface consisting of single layer nanoscale split-ring resonator array. The terahertz generation due to optical rectification by the second-order nonlinearity of the split-ring resonator is investigated by a time-domain implementation of the hydrodynamic model for electron dynamics in metal. The results show that the nonlinear metasurface enables us to generate broadband terahertz radiation and free from quasi-phase-matching conditions. The proposed scheme provides a new concept of broadband THz source and designing nonlinear plasmonic metamaterials.
Keywords
Cite
@article{arxiv.1806.00774,
title = {Investigation of broadband terahertz generation from metasurface},
author = {Ming Fang and Kaikun Niu and Zhiaxiang Huang and Wei E. I. Sha and Xianliang Wu and Thomas Koschny and Costas M. Soukoulis},
journal= {arXiv preprint arXiv:1806.00774},
year = {2018}
}
Comments
12 pages, 5 figures