Acoustic Harmonic Generation in Nondegenerate Semiconductors
A phenomenological theory is developed to study acoustic wave second harmonic generation in piezoelectric as well as nonpiezoalectric semiconductors, and derive optimum conditions for maximum harmonic generation. The results show that second harmonic flux is maximum at higher frequencies in nonpiezoelectric semiconductors, and at lower frequencies in semiconductors exhibiting both piezoelectricity and deformation potential, as compared to the case of pure piezoelectric materials, while it is a maximum at v d = v s for both the coupling mechanisms.
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Document Type: Research Article
Publication date: May 1, 1975
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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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