We report the simultaneous excitation of the odd and the even eigenmode resonances in a periodic array of square split-ring resonators, with four resonators per unit cell. When the electric field is parallel to their gaps, only the two well-studied odd eigenmodes are excited. As the resonators are rotated relative to one another, we observe the emergence and excitation of an extremely sharp even eigenmode. In uncoupled split-ring resonators, this even eigenmode is typically radiative in nature with a broad resonance linewidth and low Q-factor. However, in our coupled system, for specific range of rotation angles, our simulations revealed a remarkably high quality factor (Q ∼ 100) for this eigenmode, which has sub-radiant characteristics. This type of quad-supercell metamaterial offers the advantage of enabling access to all the three distinct resonance features of the split-ring resonator, which consists of two odd eigenmodes in addition to the high-Q even eigenmode, which could be exploited for high performance multiband filters and absorbers. The high Q even eigenmode could find applications in designing label free bio-sensors and for studying the enhanced light matter interaction effects.
Skip Nav Destination
Article navigation
5 January 2015
Research Article|
January 06 2015
Ultra-high Q even eigenmode resonance in terahertz metamaterials
Ibraheem Al-Naib;
Ibraheem Al-Naib
a)
1Department of Physics, Engineering Physics and Astronomy,
Queen's University
, Kingston, Ontario K7L 3N6, Canada
Search for other works by this author on:
Yuping Yang;
Yuping Yang
2School of Electrical and Computer Engineering,
Oklahoma State University
, Stillwater, Oklahoma 74078, USA
Search for other works by this author on:
Marc M. Dignam;
Marc M. Dignam
1Department of Physics, Engineering Physics and Astronomy,
Queen's University
, Kingston, Ontario K7L 3N6, Canada
Search for other works by this author on:
Weili Zhang;
Weili Zhang
2School of Electrical and Computer Engineering,
Oklahoma State University
, Stillwater, Oklahoma 74078, USA
Search for other works by this author on:
Ranjan Singh
Ranjan Singh
b)
3Centre for Disruptive Photonic Technologies, Division of Physics and Applied Physics, School of Physical and Mathematical Sciences,
Nanyang Technological University
, Singapore, Singapore 637371
Search for other works by this author on:
a)
Electronic mail: ibraheemalnaib@gmail.com
b)
Electronic mail: ranjans@ntu.edu.sg
Appl. Phys. Lett. 106, 011102 (2015)
Article history
Received:
October 22 2014
Accepted:
December 22 2014
Citation
Ibraheem Al-Naib, Yuping Yang, Marc M. Dignam, Weili Zhang, Ranjan Singh; Ultra-high Q even eigenmode resonance in terahertz metamaterials. Appl. Phys. Lett. 5 January 2015; 106 (1): 011102. https://doi.org/10.1063/1.4905478
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00
Citing articles via
Feedback cooling of an insulating high-Q diamagnetically levitated plate
S. Tian, K. Jadeja, et al.
MXene/AlGaN van der Waals heterojunction self-powered photodetectors for deep ultraviolet communication
Linhao Li, Yixun He, et al.
Evolution of electro-induced blood plasma droplets on a superhydrophobic microstructured surface
Kaikai Li, Yingxi Xie, et al.