Physics – Optics
Scientific paper
2007-05-07
Opt. Commun., Vol. 280, pp. 120-125 (2007)
Physics
Optics
manuscript submitted to Optics Communications
Scientific paper
10.1016/j.optcom.2007.08.025
The refractive index of a dielectric medium comprising both passive and inverted components in its permittivity was determined using two methods: (i) in the time domain, a finite-difference algorithm to compute the frequency-domain reflectance from reflection data for a pulsed plane wave that is normally incident on a dielectric half-space, and (ii) in the frequency domain, the deflection of an obliquely incident Gaussian beam on transmission through a dielectric slab. The dielectric medium was found to be an active medium with a negative real part for its refractive index. Thereby, a recent controversy in the scientific literature was resolved.
Geddes III Joseph B.
Lakhtakia Akhlesh
Mackay Tom G.
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