TY - JOUR
T1 - Near-field interaction of twisted split-ring resonators
AU - Powell, David A.
AU - Hannam, Kirsty
AU - Shadrivov, Ilya V.
AU - Kivshar, Yuri S.
PY - 2011/6/15
Y1 - 2011/6/15
N2 - We present experimental, numerical, and analytical results for the study of near-field interaction of twisted split-ring resonators, the basic elements of the so-called stereometamaterials. In contrast to previous results, we observe a crossing point in the dispersion curves where the symmetric and antisymmetric modes become degenerate. We introduce a model to describe the interplay between magnetic and electric near-field interactions and demonstrate how this model describes the crossing of the dispersion curves, initially considering lossless identical resonators. Finally, we apply the theory of Morse critical points to demonstrate the competition between losses and differences between the rings in determining whether or not the symmetric and antisymmetric modes cross.
AB - We present experimental, numerical, and analytical results for the study of near-field interaction of twisted split-ring resonators, the basic elements of the so-called stereometamaterials. In contrast to previous results, we observe a crossing point in the dispersion curves where the symmetric and antisymmetric modes become degenerate. We introduce a model to describe the interplay between magnetic and electric near-field interactions and demonstrate how this model describes the crossing of the dispersion curves, initially considering lossless identical resonators. Finally, we apply the theory of Morse critical points to demonstrate the competition between losses and differences between the rings in determining whether or not the symmetric and antisymmetric modes cross.
UR - http://www.scopus.com/inward/record.url?scp=79961194969&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.83.235420
DO - 10.1103/PhysRevB.83.235420
M3 - Article
SN - 1098-0121
VL - 83
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 23
M1 - 235420
ER -