On the refractive index for a nonmagnetic two-component medium: resolution of a controversy
arXiv:0705.0830 · doi:10.1016/j.optcom.2007.08.025
Abstract
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.
manuscript submitted to Optics Communications
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Cited by in corpus (6)
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- Resolving the wave-vector and the refractive index from the coefficient of reflectance
- When does the choice of the refractive index of a linear, homogeneous, isotropic, active, dielectric medium matter?
- On the inapplicability of a negative-phase-velocity condition as a negative-refraction condition for active materials
- Fourier theory of linear gain media
- Fresnel reflection from a cavity with net roundtrip gain