New lasers that use sound instead of light could shrink your smartphone
Phonon lasers use high-frequency sound waves instead of light to transmit data, offering a breakthrough that could drastically reduce the size of electronic components in future mobile devices.
Phonon lasers generate coherent beams of sound particles rather than photons, allowing for information processing at much smaller scales. Because sound waves have shorter wavelengths than light at similar frequencies, these acoustic devices can be shrunk far beyond the limits of traditional optical lasers.
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