Search for: [Abstrakt = "Basic features of narrow optical beam interactions with a dielectric interface are analysed. It is shown that two types of paraxial beams – elegant Hermite–Gaussians of linear polarization and elegant Laguerre–Gaussians of circular polarization – can be treated as vector normal modes of the interface. Excitation of higher\-order modes by cross\-polarization coupling is described and changes of mode indices induced by transmission and reflection matrices are evaluated. Optical vortex excitation and splitting are theoretically predicted and confirmed by numerical simulations."]

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