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Published in 2018 at "Journal of Physics D: Applied Physics"
DOI: 10.1088/1361-6463/aac7d8
Abstract: Electromagnetic metamaterials are man-made structures that have novel properties such as a negative refraction index, not attainable in naturally occurring materials. Although negative index materials (NIMs) in microwave frequencies were demonstrated in 2001, it has…
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Keywords:
left handed;
split ring;
near infrared;
handed metamaterials ... See more keywords
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Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.104012
Abstract: When geodesic equations are formulated in terms of an effective potential U , circular orbits are characterised by U = ∂aU = 0. In this paper we consider the case where U is an algebraic…
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Keywords:
pairs discriminantal;
ring pairs;
light ring;
discriminantal varieties ... See more keywords