Negative Uniaxial Optical Behaviour of Laminated Polarization Beam-splitters

Massaro, A. ; Di Donato, A. ; Rozzi, T. (2002) Negative Uniaxial Optical Behaviour of Laminated Polarization Beam-splitters. In: Gallium Arsenide applications symposium. GAAS 2002, 23-27 september 2002, Milano.

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Abstract

In the construction of polarization beam-splitters (PBS) and switches a structure can be employed, that is based on the birefringence of periodically laminated dielectric thin films [2,7]. In this work we derive an estimate of the split angle in laminated polarization splitters behaving as negative uniaxial crystals, in the case of oblique incidence. This analysis has been applied to an artificial anisotropic dielectric medium realized by means of layers of a-Si:H and SiO2 [7].

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