Aug 9, 2020

Unusual Sound Waves Induced Using Laser Pulses – 140 Years After Alexander Graham Bell Reported That Light Can Be Converted Into Sound Waves

Posted by in categories: materials, physics

Ultrashort laser pulses induce unusual sound waves via a structural instability in a material.

RIKEN physicists have initiated unusual sound waves in a flake using ultrashort pulses of laser light and then created videos of their movement using electron microscopy. This advance should help engineers to achieve higher precision control of heat flow and sound in nanodevices using light.

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