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A Fourier Transform Approach to Acoustooptic Interactions in the Presence of Propagational Diffraction

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A straightforward Fourier-transform approach to light-sound interaction assuming a bounded sound column and a light beam of arbitrary initial profile is employed. The formalism includes effects of propagational diffraction during the acousto-optic interaction process. A Gaussian beam input with plane wavefronts and a focussed Gaussian beam are considered as typical illustrations of our general approach.

Zusammenfassung

In dieser Arbeit wird eine Fouriermethode zur Beschreibung der Wechselwirkung zwischen Licht und Schall benutzt unter der Annahme eines begrenzten Schallstrahls und eines Lichtbündels mit beliebigem Ausgangsprofil. Der Formalismus schließt die Wirkung der Ausbreitungsbeugung während der akusto-optischen Wechselwirkung ein. Als typische Beispiele der allgemeinen Methode werden ein Gaußsches Eingangsbündel mit ebenen Wellenfronten und ein fokussiertes Gaußsches Bündel betrachtet.

Sommaire

On applique directement la transformation de Fourier au problème de l'interaction lumière-son en considérant un faisceau acoustique limité et un pinceau de lumière de profil initial arbitraire. Le formalisme obtenu englobe les effets de diffraction propagationnelle qui se manifestent au cours du processus d'interaction acousto-optique. Deux exemples typiques illustrent la méthode générate: celui du faisceau incident gaussien à fronts d'onde plans et celui du faisceau gaussien focalisé.
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Document Type: Research Article

Publication date: August 1, 1991

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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