By Adrian Korpel
Revised and up-to-date, this moment variation first explains heuristically the physics of acousto-optics prior to featuring the math of the formal concept. the cloth is built-in to demonstrate and advertise the improvement of recent principles, thoughts, theories, innovations and units. The textual content additionally bargains sections at the Near-Bragg regime and curved sound wave fronts, insurance of the numerical procedure, chosen functions, insurance of anisotropic Bragg diffraction, and fabric on spectral formalisms.
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Additional info for Acousto-optics
Now, itiswellknown that eachfieldsatisfyingHelmholtz’s equation can be uniquely decomposed into plane waves (if we neglect evanescent waves for the moment): the angular plane-wave spectrum . This is, of course, also true for the sound field and offers a possibility to study (weak) interaction geometriesby means of this concept. A semi-quantitative consideration of deflection and modulation devices was carried out along these lines by Gordm . According to these considerations, the angular sensitivityof diffraction devices is intimately tied up with the angular spectrum of the acoustic transducer.
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Electric, Optic and Acoustic Interactionsin Dielectrics, Wiley, New York (1979). 144. McSkimmin, H. , “Ultrasonic Methodsfor Measuringthe Mechanical Properties of Liquids and Solids,” Physical Acoustics,Vol. l-A (W. P. ), Academic Press, New York (1964). 145. Spencer, E. ,Lenzo, P. , and Ballman, A. , Proc ZEEE, 55,2074 (1967). 146. Tsai, C. , Guided Wave Acousto-Optic Interactions, Devices and Applications, Springer Verlag, Berlin (1980). 147. Alphonse, G. , RCA Review, 33, 543 (1972). This Page Intentionally Left Blank 3 The Heuristic Approach In this chapterwe shall approach the problemof light-sound interaction in a heuristic way based largely on physical intuition, analogies,and a curious but fruitful mixture of ray and wave optics.
Acousto-optics by Adrian Korpel