Due to the complexity of the device, the power of the sound laser is still in the range of milliwatts (maximum 50 mW), but the team believes that it is enough to think about practical applications.

"This work, which provides much stronger and better quality signals from coherent phonon harmonics, is a fundamental step toward controlling and utilizing nonlinear phonon lasers for applications such as phonon frequency combs, broadband phonon sensors, and diagnostics." biomedical ultrasonic technology," the researchers concluded.