Nonspecular astigmatic reflection of a 3D gaussian beam on an interface - Institut d'Optique Graduate School Access content directly
Journal Articles Optics Communications Year : 1992

Nonspecular astigmatic reflection of a 3D gaussian beam on an interface

Abstract

We extend a recently proposed approach of the study of nonspecular effects to 3D finite beams. It is shown that a new nonspecular effect appears in 3D: the two beam waist in the two transverse directions across the beam are different and their longitudinal positions are different. In other words a plane interface is an astigmatic system for a finite beam. The effect is illustrated by studying the nonspecular effects for the zero order diffracted beam by a grating. It is shown that this system produces strong nonspecular effects due to the efficient coupling of leaky waves near the total absorption regime.

Dates and versions

hal-01617416 , version 1 (16-10-2017)

Identifiers

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Jean-Jacques Greffet, Christophe Baylard. Nonspecular astigmatic reflection of a 3D gaussian beam on an interface. Optics Communications, 1992, 93 (5-6), pp.271 - 276. ⟨10.1016/0030-4018(92)90184-S⟩. ⟨hal-01617416⟩
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