Sound-waves: Making opaque materials totally transparent. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2018 / 07 / 180702111114.htm ...

By shining laser light into fiber optic waveguides made of glass, they were able to probe and generate acoustic waves in the fiber core. By generating an intense acoustic wave at one frequency (i.e.