Thermoelastic surface acoustic wave demonstrates frequency modulation in silicon nitride, indicating promising optomechanics applications.
Thermoelastic surface acoustic wave (SAW) is demonstrated on a thin film silicon nitride platform with metal grating acoustic emitter. A SAW frequency of 0.749 GHz is applied for both phase modulation and intermodal scattering.
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Zheng et al. (2025) studied this question.
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