Control of the Instrument Function of Acousto-Optic Cells with a Noncollinear Interaction Geometryстатья
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: 17 июня 2016 г.
Аннотация:A possibility of controlling the instrument function of acousto-optic devices with a noncollinear
interaction geometry by using split piezotransducers is shown. A device’s instrument function can be corrected by modifying the distribution of the ultrasonic amplitude in an acousto-optic cell along the direction of propagation of optic beams. Optimum distributions of acoustic-deformation amplitudes are found, thus enabling reduction of the sidelobes of the device’s instrument function. The level of sidelobes is shown to depend both on the distribution of voltage amplitudes over sections of an acoustic transducer and on the width of the gap between these sections. An acousto-optic cell is developed and tested experimentally. It contains a piezotransducer consisting of eight sections that are power-supplied through a capacitance divider.