Sensing with a twist: A new kind of optical nanosensor uses torque for signal processing

As electronic devices get smaller, their ability to provide precise, chip-based sensing of dynamic physical properties such as motion become challenging to develop. An international group of researchers have put a literal twist on this challenge, demonstrating a new nanoscale optomechanical resonator that can detect torsional motion at near state-of-the-art sensitivity. Their resonator, into which they couple light, also demonstrates torsional frequency mixing, a novel ability to impact optical energies using mechanical motions.

from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2017/09/170916080147.htm

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