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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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.
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Fractoluminescence is caused by stress that results in the formation of fractures, that in turn yield light.
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Piezoluminescence is caused by pressure that results in
elastic deformation
In engineering, deformation (the change in size or shape of an object) may be ''elastic'' or ''plastic''.
If the deformation is negligible, the object is said to be ''rigid''.
Main concepts
Occurrence of deformation in engineering application ...
and large polarization from the
piezoelectric
Piezoelectricity (, ) is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to applied stress (mechanics), mechanical s ...
effect.
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Sonoluminescence
Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound.
Sonoluminescence was first discovered in 1934 at the University of Cologne. It occurs when a sound wave of sufficient intensity induces a gaseo ...
is the emission of short bursts of light from imploding bubbles in a liquid when excited by sound.
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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 in most cases to be caused by the ...
is nominally caused by rubbing, but sometimes occurs because of resulting fractoluminescence. It is often used as a synonym.
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