Ultrathin Terahertz Planar Lenses
Optics
2013-04-09 v1
Abstract
Conventional optical components shape the wavefront of propagating light by adjusting the optical path length, which requires the use of rather thick lenses, especially for the adjustment of terahertz (THz) radiation due to its long wavelength. Two ultrathin THz planar lenses were designed and fabricated based on interface phase modulation of antenna resonance. The lens thicknesses were extremely reduced to 100 nm, which is only 1/4000th of the illuminating light wavelength. The focusing and imaging functions of the lenses were experimentally demonstrated. The ultrathin optical components described herein are a significant step toward the development of a micro-integrated THz system.
Keywords
Cite
@article{arxiv.1206.7011,
title = {Ultrathin Terahertz Planar Lenses},
author = {Dan Hu and Xinke Wang and Shengfei Feng and Jiasheng Ye and Wenfeng Sun and Qiang Kan and Peter J. Klar and Yan Zhang},
journal= {arXiv preprint arXiv:1206.7011},
year = {2013}
}
Comments
12 pages 5 figures