The Faculty of Mechanical Engineering at the Technion has set a world record in light enhancement — ScienceDaily

Physical Review X recently reported on a new optical resonator from the Technion — Israel Institute of Technology that is unprecedented in resonance enhancement. Developed by graduate student Jacob Kher-Alden under the supervision of Professor Tal Carmon, the Technion-born resonator has record-breaking capabilities in resonance enhancement.

A resonator is a device that traps waves and enhances or echoes them by reflecting them from wall to wall in a process called resonant enhancement. Today, there are complex and sophisticated resonators of various kinds throughout the world, as well as simple resonators familiar to all of us. Examples of this include the resonator box of a guitar, which enhances the sound produced by the strings, or the body of a flute, which enhances the sound created in the mouthpiece of the instrument.

The guitar and flute are acoustic resonators in which the sound reverberates between the walls of the resonator. In physics,

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