TY - JOUR
T1 - Manipulating the loss in electromagnetic cloaks for perfect wave absorption
AU - Argyropoulos, Christos
AU - Kallos, Efthymios
AU - Zhao, Yan
AU - Hao, Yang
PY - 2009/5/11
Y1 - 2009/5/11
N2 - We examine several ways to manipulate the loss in electromagnetic cloaks, based on transformation electromagnetics. It is found that, by utilizing inherent electric and magnetic losses of metamaterials, perfect wave absorption can be achieved based on several popular designs of electromagnetic cloaks. A practical implementation of the absorber, consisting of ten discrete layers of metamaterials, is proposed. The new devices demonstrate super-absorptivity over a moderate wideband range, suitable for both microwave and optical applications. It is corroborated that the device is functional with a subwavelength thickness and, hence, advantageous compared to the conventional absorbers.
AB - We examine several ways to manipulate the loss in electromagnetic cloaks, based on transformation electromagnetics. It is found that, by utilizing inherent electric and magnetic losses of metamaterials, perfect wave absorption can be achieved based on several popular designs of electromagnetic cloaks. A practical implementation of the absorber, consisting of ten discrete layers of metamaterials, is proposed. The new devices demonstrate super-absorptivity over a moderate wideband range, suitable for both microwave and optical applications. It is corroborated that the device is functional with a subwavelength thickness and, hence, advantageous compared to the conventional absorbers.
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U2 - 10.1364/OE.17.008467
DO - 10.1364/OE.17.008467
M3 - Article
AN - SCOPUS:66449129812
SN - 1094-4087
VL - 17
SP - 8467
EP - 8475
JO - Optics Express
JF - Optics Express
IS - 10
ER -