High Orders of Light Diffraction by Ultrasound in the Intermediate Regime of Acoustooptic Interaction. I: Theoretical Consideration
Angular and frequency characteristics of the second and third diffraction orders are calculated for the intermediate regime of acoustooptic interaction. Changing the characteristics with the Klein-Cook parameter and the acoustic power is analysed. It is established that in the case of a high acoustooptic selectivity the 2nd order angular characteristic contains three basic maxima, whereas the 3rd order angular characteristic has five maxima. The maxima are observed when the light falls on the acoustooptic cell at the angles that are a multiple of the Bragg angle. It is shown that more than 70% of incident radiation can be scattered into the 2nd order and more than 50% can be diffracted into the 3rd order at a moderate acoustic power in the intermediate regime of interaction. Peculiarities of the interaction in the anisotropic medium are discussed as well.
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Document Type: Research Article
Publication date: September 1, 1998
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- 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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