March 16, 2009
Scientists convert sound into light
U.S. scientists say they have, for the first time, changed high frequency sounds into light by reversing a process that converts electrical signals to sound.
The Lawrence Livermore National Laboratory researchers said their new tool enhances the way computer chips, LEDs and transistors are build.
This process allows us to very accurately 'see' the highest frequency sound waves by translating them into light, Armstrong said.
The complex research appears in the journal Nature Physics.