Mechanoluminescence

Mechanoluminescence is light emission resulting from any mechanical action on a solid. It can be produced through ultrasound, or through other means.

• Fractoluminescence
  • Caused by stress that results in the formation of fractures.
• Piezoluminescence
  • Caused by pressure that results only in elastic deformation.[1]
• Triboluminescence
  • Nominally caused by rubbing, but actually because of resulting fractoluminescence, so is often used as a synonym.[2]
• Sonoluminescence
  • The emission of short bursts of light from imploding bubbles in a liquid when excited by sound.