TY - JOUR
T1 - Toward superlensing with metal-dielectric composites and multilayers
AU - Nielsen, Rasmus Bundgaard
AU - Thoreson, M.D.
AU - Chen, W.
AU - Kristensen, Anders
AU - Hvam, Jørn Märcher
AU - Shalaev, V.M.
AU - Boltasseva, Alexandra
PY - 2010
Y1 - 2010
N2 - We report on the fabrication of two types of adjustable,
near-field superlens designs: metal–dielectric composites
and metal–dielectric multilayer films. We fabricated
a variety of films with different materials, thicknesses and
compositions. These samples were characterized physically
and optically to determine their film composition, quality,
and optical responses. Our results on metal–dielectric composites
indicate that although the real part of the effective
permittivity generally follows effective medium theory
predictions, the imaginary part does not and substantially
higher losses are observed. Going forward, it appears
that multilayer metal–dielectric designs are more suitable
for sub-diffraction imaging applications because they could
provide both tunability and low loss.
AB - We report on the fabrication of two types of adjustable,
near-field superlens designs: metal–dielectric composites
and metal–dielectric multilayer films. We fabricated
a variety of films with different materials, thicknesses and
compositions. These samples were characterized physically
and optically to determine their film composition, quality,
and optical responses. Our results on metal–dielectric composites
indicate that although the real part of the effective
permittivity generally follows effective medium theory
predictions, the imaginary part does not and substantially
higher losses are observed. Going forward, it appears
that multilayer metal–dielectric designs are more suitable
for sub-diffraction imaging applications because they could
provide both tunability and low loss.
U2 - 10.1007/s00340-010-4065-z
DO - 10.1007/s00340-010-4065-z
M3 - Journal article
SN - 0946-2171
VL - 100
SP - 93
EP - 100
JO - Applied Physics B
JF - Applied Physics B
IS - 1
ER -