ANALYTICAL ANGULAR-FREQUENCY DEPENDENCE FOR AN ACOUSTO-OPTIC DEFLECTOR USING A SECTIONED ULTRASOUND TRANSDUCER
P. A. Nikitin1,2
1Scientific and Technological Centre of Unique Instrumentation, Russian Academy of Sciences, Moscow, Russia
2National Research University "Moscow Power Engineering Institute,", Moscow, Russia
Keywords: acousto-optics, terahertz radiation, deflector, sectioned transducer
Abstract
Acousto-optic terahertz radiation deflectors based on an optically isotropic medium are characterized by a low number of resolved light spots. Substantial improvement of the deflector characteristics can be achieved by using a sectioned phased ultrasonic transducer. In this paper, an angular-frequency dependence for such a deflector is analytically obtained for the first time, and the position of the working point on it is specified taking into account the influence of the gap between the sections of the ultrasound transducer.
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