The anisotropic light diffraction by bulk acoustic waves (BAWs) radiated by an interdigital transducer (IDT) operating at the leaky surface acoustic wave resonance in ZX-lithium niobate has been experimentally studied at an optical wavelength of 633 nm in the range of acoustic frequencies from 35 to 190 MHz. The possibility of optical probing of the IDT-radiated BAW properties is demonstrated. The experimentally determined values of the BAW propagation angle and velocity are 25° and 4050 m/s, respectively.
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机译：在声波频率范围为633 nm的光波范围内，通过实验研究了ZX铌酸锂在泄漏表面声波共振下由叉指换能器（IDT）辐射的体声波（BAW）产生的各向异性光衍射。 35至190 MHz。证明了对IDT辐射的BAW特性进行光学探测的可能性。 BAW传播角和速度的实验确定值分别为25°和4050 m / s。
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