Abstract

Subject of study. The acousto-optic diffraction features of terahertz radiation by an ultrasonic field with periodic inhomogeneity are theoretically evaluated in this study. Aim of study. This study aims to identify the optimal parameters for implementing an effective terahertz radiation deflector. Method. Liquefied sulfur hexafluoride gas is selected as the interaction medium to enhance the energy efficiency of the deflector. Additionally, the application of a sectioned phased ultrasound transducer is proposed to increase the number of resolvable light spots. Main results. The features of the acoustic field generated by the transducer are demonstrated. Analytical relations are derived for the main parameters of the acousto-optic deflector. Practical significance. A possible fivefold increase in the number of resolvable spots compared with an acousto-optic deflector based on a single-section transducer of the same length is demonstrated.

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