Technology Spotlight: Laser Beams Used to Produce Sound

Sending audio communications to specific targets — like a single person in a crowd of people — is the focus of a research project being conducted at MIT.

The MIT communication system is based on photo acoustics, sound waves that result from the interaction of light and matter. For this project the source of light is a laser beam. Results of the research hold promising applications in a number of fields, the feature of this week’s Technology Spotlight.

Excerpt from Science World with DrB


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