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Acousto-optic interaction in cells with wedge-shaped transducers excited at high harmonicsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Balakshy V.I., Revenko A.V.
- Журнал: Acta Acustica united with Acustica
- Том: 96
- Номер: 5
- Год издания: 2010
- Издательство: S. Hirzel Verlag
- Местоположение издательства: Germany
- Первая страница: 837
- Последняя страница: 842
- Аннотация: Diffraction of light in a non-homogeneous acoustic field produced by a wedge-shaped piezoelectric transducer is studied theoretically. Electrical, acoustic and acousto-optic characteristics of cells with the wedge-shaped transducers are calculated. Most attention is focused on special features of these cells operation at transducer’s third harmonic frequency. It is shown that the acoustic field has a complicated amplitude and phase structure which varies with ultrasound frequency. The dependence of the acousto-optic diffraction efficiency on the acoustic wave amplitude and the phase mismatch is studied. It is established that the diffraction efficiency can approach 100% despite a noticeable phase mismatch. Optimal values of acoustic power and light incidence angles are found. It is revealed that due to the wedge-like form of the transducer the frequency band at the third harmonic can be several times increased with retaining a high value of the electric-to-acoustic power conversion.
- Добавил в систему: Балакший Владимир Иванович