Boosting Light Intensity with Sound

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Some interesting thoughts, but the article says nothing about how the sound and light interact, or how they control one or the other. The illustration hints at the sound waves creating lens effects, but the directions of the exiting light waves don't seem to correlate to the lens waves...

The article says nothing about boosting the intensity of light using acoustics. It appears they are shaping and controllong the light using sound in a waveguide. The scale is what's new. This is not different in kind from controlling a free-space beam using an aluminized mylar foil over the face of an audio speaker cone to control the shape and direction of a laser beam.

So maybe this technology might be useful for fiber optic communications and DWDM (dense wavelength division multiplexing).