@article{225775259e544fb7bd3960894466ca6e,
title = "Resonance coupling and polarization conversion in terahertz metasurfaces with twisted split-ring resonator pairs",
abstract = "We investigate edge-coupling of twisted split-ring resonator (SRR) pairs in the terahertz (THz) frequency range. Using a simple coupled-resonator model we show that such a system exhibits resonance splitting and cross-polarization conversion. Numerical simulations and experimental measurements agree well with theoretical calculations, verifying the resonance splitting as a function of the coupling strength given by the SRR separation. We further show that a metal ground plane can be integrated to significantly enhance the resonance coupling, which enables the effective control of resonance splitting and the efficiency and bandwidth of the cross-polarization conversion. Our findings improve the fundamental understanding of metamaterials with a view of accomplishing metamaterial functionalities with enhanced performance, which is of great interest in realizing THz functional devices required in a variety of applications.",
author = "Chenyu Li and Chang, {Chun Chieh} and Qingli Zhou and Cunlin Zhang and Chen, {Hou Tong}",
note = "Funding Information: National Natural Science Foundation of China (NSFC) (Grant No. 11574219); Los Alamos National Laboratory LDRD Program. Funding Information: This work was performed, in part, at the Center for Integrated Nanotechnologies, a U.S. Department of Energy, Office of Basic Energy Sciences Nanoscale Science Research Center operated jointly by Los Alamos and Sandia National Laboratories. Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by Los Alamos National Security, LLC, for the National Nuclear Security Administration of the U.S. Department of Energy under Contract No. DE-AC52-06NA25396. Publisher Copyright: {\textcopyright} 2017 Optical Society of America.",
year = "2017",
month = oct,
day = "16",
doi = "10.1364/OE.25.025842",
language = "English",
volume = "25",
pages = "25842--25852",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "21",
}