TY - JOUR
T1 - Optical refraction in silver
T2 - Counterposition, negative phase velocity and orthogonal phase velocity
AU - Naqvi, Qaisar A.
AU - MacKay, Tom G.
AU - Lakhtakia, Akhlesh
PY - 2011/7
Y1 - 2011/7
N2 - Complex behaviour associated with metamaterials can arise even in commonplace isotropic dielectric materials. We demonstrate how silver, for example, can support negative phase velocity and counterposition, but not negative refraction, at optical frequencies. The transition from positive to negative phase velocity is not accompanied by remarkable changes in the Abraham and Minkowski momentum densities. In particular, orthogonal phase velocity is associated with nonzero Abraham and Minkowski momentum densities.
AB - Complex behaviour associated with metamaterials can arise even in commonplace isotropic dielectric materials. We demonstrate how silver, for example, can support negative phase velocity and counterposition, but not negative refraction, at optical frequencies. The transition from positive to negative phase velocity is not accompanied by remarkable changes in the Abraham and Minkowski momentum densities. In particular, orthogonal phase velocity is associated with nonzero Abraham and Minkowski momentum densities.
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U2 - 10.1088/0143-0807/32/4/004
DO - 10.1088/0143-0807/32/4/004
M3 - Article
AN - SCOPUS:79959719305
SN - 0143-0807
VL - 32
SP - 883
EP - 893
JO - European Journal of Physics
JF - European Journal of Physics
IS - 4
ER -