News tagged with sound waves

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A sonic boom in the world of lasers

It was an idea born out of curiosity in the physics lab, but now a new type of ‘laser’ for generating ultra-high frequency sound waves instead of light has taken a major step towards becoming a unique and highly useful ...

dateJun 17, 2009 in Optics & Photonics
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Carbon nanotube speakers play music with heat

Troy Bouman reaches over, presses play, and the loudspeaker sitting on the desk starts playing the university fight song. But this is no ordinary loudspeaker. This is a carbon nanotube transducer—and it makes sound with ...

dateJul 28, 2015 in Nanomaterials
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Exposing breast cancer using nanoscale polymers

Photoacoustic imaging is a ground-breaking technique for spotting tumors inside living cells with the help of light-absorbing compounds known as contrast agents. A*STAR researchers have now discovered a way to improve the ...

dateMay 13, 2015 in Bio & Medicine
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