Chips
Phonon Laser Could Make Smartphone Chips Smaller, Faster
* Key Takeaways: * Engineers built an electrically injected surface acoustic wave (SAW) phonon laser on a single chip, producing vibrations at ~1 GHz and scalable to tens or hundreds of GHz. * The device combines silicon, lithium niobate and indium gallium arsenide to convert electrical current into amplified surface vibrations. * A single-chip