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Lasers

Of or pertaining to light that is emitted through optical amplification based on the stimulated emission of electromagnetic radiation.

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Lasers

reversible tractor beam

Physics; Lasers

A tractor beam is a technique that uses a light beam to attract one object to another from a distance. The term was originally coined by E. E. Smith as an update to his earlier description of the ...

Interferometer

Physics; Lasers

An instrument used to interfere waves, i.e. to superimpose waves in order to extract information about them. It can be used in the fields of astronomy, fibre optics, engineering metrology, optical ...

Beta particle

Physics; Lasers

An electron that shoots out at very high speed from the atoms of some radioactive elements.

Maiman

Physics; Lasers

Theodore Harold born 1927. American scientist who invented the first working laser in 1960. Laser in helpful in the treatment of cancer.

Laser

Physics; Lasers

A device that sends out a very narrow and intense beam of light. The colour of laser light depends on how much energy is added to the atoms.

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