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Laser Light

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Definition: light generated with a laser device

German: Laserlicht

Categories: general optics, lasers

How to cite the article; suggest additional literature

Laser light (laser radiation) is simply light generated with a laser device. Such light has some very special properties, which very much distinguish it from light with other origins:

Depending on the case, laser light can have other remarkable properties:

For comparison, light from an incandescent lamp is partly visible and mostly infrared, has a very high spectral bandwidth, cannot be strongly focused (because of low spatial coherence), and cannot be generated in the form of short pulses.

Laser light can cause significant hazards, particularly for the eye, but also for the skin, apart from fire hazards and others. Lasers pulses are often particularly dangerous, because they can have enormously high optical intensities, and invisible laser beams add specific risks. See the article on laser safety for details.

See also: lasers, laser beams, coherence, speckle, pulses, laser safety, laser noise, polarization of laser emission
and other articles in the categories general optics, lasers

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