Asymmetric planar terahertz metamaterials

R Singh, IAI Al-Naib, M Koch, W Zhang - Optics express, 2010 - opg.optica.org
We report an experimental observation of three distinct resonances in split ring resonators
(SRRs) for both vertical and horizontal electric field polarizations at normal incidence by use …

Orthogonally twisted planar concentric split ring resonators towards strong near field coupled terahertz metamaterials

DR Chowdhury, JF O'Hara, AJ Taylor… - Applied Physics …, 2014 - pubs.aip.org
We present strongly coupled planar terahertz metamaterials in which the metamolecule
design comprised two concentric split ring resonators (SRRs) with their capacitive gaps …

Tailored resonator coupling for modifying the terahertz metamaterial response

DR Chowdhury, R Singh, M Reiten, J Zhou… - Optics express, 2011 - opg.optica.org
We experimentally and numerically study the nature of coupling between laterally paired
terahertz metamaterial split-ring resonators. Coupling is shown to modify the inductive …

Modulating the fundamental inductive-capacitive resonance in asymmetric double-split ring terahertz metamaterials

Y Yang, R Huang, L Cong, Z Zhu, J Gu, Z Tian… - Applied Physics …, 2011 - pubs.aip.org
We investigate resonant transmission of planar asymmetric metamaterials made from
double split-ring resonators. As the symmetry of the unit cell resonator is broken by …

The impact of nearest neighbor interaction on the resonances in terahertz metamaterials

R Singh, C Rockstuhl, F Lederer, W Zhang - Applied Physics Letters, 2009 - pubs.aip.org
By using terahertz time-domain spectroscopy and rigorous simulations, we investigate the
impact of gap orientation of neighboring split rings on the three lowest order eigenmodes for …

A broadband planar terahertz metamaterial with nested structure

DR Chowdhury, R Singh, M Reiten, HT Chen… - Optics express, 2011 - opg.optica.org
We demonstrate the broadening of fundamental resonance in terahertz metamaterial by
successive insertion of metal rings in the original unit cell of a split ring resonator (SRR) …

Coupling schemes in terahertz planar metamaterials

D Roy Chowdhury, R Singh, AJ Taylor… - … Journal of Optics, 2012 - Wiley Online Library
We present a review of the different coupling schemes in a planar array of terahertz
metamaterials. The gap‐to‐gap near‐field capacitive coupling between split‐ring resonators …

Random terahertz metamaterials

R Singh, X Lu, J Gu, Z Tian, W Zhang - Journal of Optics, 2009 - iopscience.iop.org
Using terahertz time-domain spectroscopy, we investigate the normal incidence
transmission through periodically and randomly arranged planar split ring resonators …

Characterization and analysis of terahertz metamaterials based on rectangular split-ring resonators

AK Azad, AJ Taylor, E Smirnova, JF O'Hara - Applied Physics Letters, 2008 - pubs.aip.org
We present the experimental characterization of planar terahertz metamaterials based on
rectangular electric split-ring resonator designs. Comparisons to square-ring designs reveal …

Tunable multiband terahertz metamaterials using a reconfigurable electric split-ring resonator array

F Ma, YS Lin, X Zhang, C Lee - Light: Science & Applications, 2014 - nature.com
We demonstrate micromachined reconfigurable metamaterials working at multiple
frequencies simultaneously in the terahertz range. The proposed metamaterial structures …