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China Has the World's Most Powerful Sound Laser

Oct 8, 2024
A team in China has developed the world's most powerful sound laser, emitting concentrated beams of sound particles known as phonons. This groundbreaking technology could revolutionize medical imaging and deep-sea exploration. By using a reflective cavity and a levitated silica microbead, the laser achieves unprecedented power and continuous operation. With applications ranging from non-invasive diagnostics to improved underwater communication, this innovation highlights China's advancements in science and the potential for international collaboration.
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INSIGHT

Phonon Lasers vs. Optical Lasers

  • Phonon lasers emit phonons (sound particles) instead of photons (light particles).
  • They operate in terahertz frequencies and penetrate liquids better than optical lasers.
INSIGHT

Sound Laser Mechanism

  • China's sound laser traps and amplifies sound waves within a reflective cavity using a levitated silica microbead.
  • An electrode enhances performance, enabling continuous operation for over an hour.
INSIGHT

Potential Applications

  • The phonon laser's ability to penetrate watery tissues could revolutionize medical imaging.
  • It also holds promise for deep-sea exploration, security, and other sensing applications.
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