Paper
Impact of Non-Zero Effective Surface Sources on Negative Index Perfect Lenses
- Authors:
- Weiguo Yang; Michael A. Fiddy
- Abstract
- The widely accepted theoretical treatment of the electromagnetic boundary problem of evanescent wave refraction at an interface between a normal medium of and an ideal negative index medium of seems to predict that the negative index of refraction would result in perfect lenses. The treatment, however, disregards the effects of non-zero surface potentials due to the nonlocal nature of surface optics at the microscopic level, and is self-inconsistent. This paper proposed to capture the microscopic non-zero surface potentials by introducing the macroscopic electromagnetic description non-zero effective surface current and charge densities at the interface. This treatment provides a self-consistent solution to the aforementioned electromagnetic boundary problem by finding the effective surface current and charge distributions, and after which solving the refracted and reflected fields analytically using Green's function method. The self-consistent solution yielded a transmission coefficient of 1 and reflection coefficient of 0 for all evanescent waves at this special interface, making it impossible for resonant amplification of those waves to occur.
- Keywords
- Applied Classical Electromagnetism; Reflection and Refraction; Metamaterials; Surface Plasmon Polariton
- StartPage
- 40
- EndPage
- 48
- Doi
- 10.5963/JBAP0403003