Resonant enhancement of absorption in the superlens

The Veselago lens (also known as the super lens) [1], which is a slab made of left handed material with $\varepsilon $=-1 and $\mu $=-1 has interesting properties like perfect lensing [2] and cloaking [3]. When a source is placed in front of it there are regions of high field intensity in such a lens , known as anomalously localized resonant regions [3]. For practical applications of the superlens taking advantage of these properties, the effect of finite loss on the device performance is critical [4] . We calculate the absorption loss of dipole radiation by an $\varepsilon <$0 and $\mu <$0 slab and find resonant enhancement of absorption in the superlensing regime. \newline [1] V. G. Veselago, ``The electrodynamics of substances with simultaneously negative values of permittivity and permeability,'' Sov. Phys. Usp. \textbf{10}, 509 (1968). \newline [2] J. B. Pendry, ``Negative refraction makes a perfect lens,'' Phys. Rev. Lett. \textbf{85}, 3966-3969 (2000). \newline [3] Graeme W. Milton and Nicolae-Alexandry P. Nicorovici ``On the cloaking effects associated with anomalous localized resonance,'' Proc. R. Soc. A (2006) 462, 3027-3059. \newline [4] V. A. Podolskiy and E. E. Narimanov, ``Near-sighted superlens,'' Opt. Lett. \textbf{30}, 75-77 (2005)