Mechanoluminescence is light emission resulting from any mechanical action on a solid. It can be produced through ultrasound, or through other means.
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Fractoluminescence is caused by stress that results in the formation of fractures.
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Piezoluminescence Piezoluminescence is a form of luminescence created by pressure upon certain solids. This phenomenon is characterized by recombination processes involving electrons, holes and impurity ion centres. Some piezoelectric crystals give off a certain amo ...
is caused by pressure that results only in
elastic deformation
In engineering, deformation refers to the change in size or shape of an object. ''Displacements'' are the ''absolute'' change in position of a point on the object. Deflection is the relative change in external displacements on an object. Strain ...
.
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Triboluminescence
Triboluminescence is a phenomenon in which light is generated when a material is mechanically pulled apart, ripped, scratched, crushed, or rubbed (see tribology). The phenomenon is not fully understood, but appears to be caused by the separation a ...
is nominally caused by rubbing, but actually because of resulting fractoluminescence, so is often used as a synonym.
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Sonoluminescence
Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound.
History
The sonoluminescence effect was first discovered at the University of Cologne in 1934 as a result of work on sonar. Hermann Frenzel and ...
is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound.
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Electrochemiluminescence
Electrochemiluminescence or electrogenerated chemiluminescence (ECL) is a kind of luminescence produced during electrochemical reactions in solutions. In electrogenerated chemiluminescence, electrochemically generated intermediates undergo a highl ...
is the emission induced by an electrochemical stimulus.
See also
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List of light sources
This is a list of sources of light, the visible part of the electromagnetic spectrum. Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic ener ...
References
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External links
Ultrasound Generates Intense Mechanoluminescence
Luminescence
Light sources