The asymmetric lossy near-perfect lens

By S. Anantha Ramakrishna, John B. Pendry, D. Schurig, David R. Smith, S. Schultz. 2002

162 citations recorded by the source corpus.

We extend the ideas of the perfect lens recently proposed [J.B. Pendry, Phys. Rev. Lett. 85, 3966 (2000)] to an alternative structure. We show that a slab of a medium with negative refractive index bounded by media of different positive refractive index also amplifies evanescent waves and can act as a near-perfect lens. We examine the role of the surface states in the amplification of the evanescent waves. The image resolution obtained by this asymmetric lens is more robust against the effects of absorption in the lens. In particular, we study the case of a slab of silver, which has a negative dielectric constant, with air on one side and other media such as glass or GaAs on the other side as an ‘asymmetric’ lossy near-perfect lens for p-polarized waves. It is found that retardation has an adverse effect on the imaging due to the positive magnetic permeability of silver, but we conclude that subwavelength image resolution is possible in spite of it.

Subfields: Atomic and Molecular Physics, and Optics, Biomedical Engineering, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/ec191600aa33764419eb67dc357dc483bf1f8fea

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

In Biomedical Engineering

In Electronic, Optical and Magnetic Materials

Citations in the corpus

A proof of superlensing in the quasistatic regime, and limitations of superlenses in this regime due to anomalous localized resonance (2005, background): “Since a sequence of analytic functions that converge uniformly on any compact subset of a domain has a limit which is analytic in that domain (see theorem 10.28 of Rudin 1987) it follows that S(d, g) is an analytic function of g when jgj!h for any fixed dO0.”
On the cloaking effects associated with anomalous localized resonance (2006, background): “For a polarizable line source with 3cs3m and d0!d (corresponding to the asymmetric lens studied by Ramakrishna et al. (2002)) the field is resonant in the layer of thickness 2d0 centered at the front interface (i.e. in the region d0O xOKd0).”
Realization of optical superlens imaging below the diffraction limit (2005, background): “The black dotted curve represents a decaying field without a superlens [ 25 , 29].”