TY - JOUR
T1 - A Negative Permeability Material at Red Light
AU - Yuan, Hsiao-Kuan
AU - Chettiar, Uday K.
AU - Cai, Wenshan
AU - Kildishev, Alexander V.
AU - Boltasseva, Alexandra
AU - Drachev, Vladimir P.
AU - Shalaev, Vladimir M.
PY - 2007
Y1 - 2007
N2 - A negative permeability in a periodic array of pairs of thin silver
strips is demonstrated experimentally for two distinct samples. The effect of
the strip surface roughness on negative permeability is evaluated. The first
sample, Sample A, is fabricated of thinner strips with a root mean square
roughness of 7 nm, while Sample B is made of thicker strips with 3-nm
roughness. The real part of permeability, μ
′ , is −1 at a wavelength of 770
nm in Sample A and −1.7 at 725 nm in Sample B. Relative to prototypes
simulated with ideal strips, larger strip roughness acts to decrease μ
′ by a
factor of 7.8 in Sample A versus a factor of 2.4 decrease for Sample B.
AB - A negative permeability in a periodic array of pairs of thin silver
strips is demonstrated experimentally for two distinct samples. The effect of
the strip surface roughness on negative permeability is evaluated. The first
sample, Sample A, is fabricated of thinner strips with a root mean square
roughness of 7 nm, while Sample B is made of thicker strips with 3-nm
roughness. The real part of permeability, μ
′ , is −1 at a wavelength of 770
nm in Sample A and −1.7 at 725 nm in Sample B. Relative to prototypes
simulated with ideal strips, larger strip roughness acts to decrease μ
′ by a
factor of 7.8 in Sample A versus a factor of 2.4 decrease for Sample B.
U2 - 10.1364/OE.15.001076
DO - 10.1364/OE.15.001076
M3 - Journal article
SN - 1094-4087
VL - 15
SP - 1076
EP - 1083
JO - Optics Express
JF - Optics Express
IS - 3
ER -