Holographic imaging of surface acoustic waves
arXiv:1401.5344 · doi:10.1063/1.4866390
Abstract
We report on an experimental demonstration of surface acoustic waves monitoring on a thin metal plate with heterodyne optical holography. Narrowband imaging of local optical pathlength modulation is achieved with a frequency-tunable time-averaged laser Doppler holographic imaging scheme on a sensor array, at video-rate. This method enables robust and quantitative mapping of out-of-plane vibrations of nanometric amplitudes at radiofrequencies.
References in corpus (2)
Cited by in corpus (4)
- Heterodyne Holography with full control of both signal and reference arms
- Vibration of low amplitude imaged in amplitude and phase by sideband versus carrier correlation digital holography
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