Bloch Wave Approach to the Optics of Crystals: The Role of Spatial Dispersion
POLITECNICO DI TORINO (ITALY) DIPT DI ELETTRONICA
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In this work we give new results in the framework of a research on the macroscopic optical properties of crystals whose period rho is shorter than the light wavelength but large on the molecular scale, so that they can be treated in the framework of a continuum theory. More precisely, we assume that the optical properties of the crystal are fully defined by a perfectly periodic function epsilontau-, representing the local permittivity of the medium assumption of locality. To define the effective permittivity tensor epsilon tilde we use a method based on the analysis of the normal modes for the electromagnetic field propagating within of the periodic medium Bloch waves.
- Statistics and Probability