Acousto-optics exploits the interaction between light waves and acoustic waves propagating through a transparent medium. An ultrasonic transducer bonded to a crystal such as TeO₂ or PbMoO₄ launches a periodic density wave that acts as a dynamic diffraction grating. Photons scatter from this moving grating, acquiring a frequency shift equal to the acoustic frequency and deflecting at an angle governed by the Bragg condition.
These simulations cover the core phenomena and devices of acousto-optic technology. Explore Bragg diffraction geometry and efficiency. Visualize Raman-Nath multi-order diffraction in thin gratings. Calculate modulator rise times from beam diameter and acoustic velocity. Design AOTF wavelength selectors by tuning RF drive frequency. Optimize deflector bandwidth and angular resolution for laser scanning systems.