Entity: LASER
A laser is a device that produces a highly concentrated beam of light through the process of light amplification by stimulated emission of radiation. It has various applications in fields such as surgery, welding, and entertainment.
LASER
Etymology
The word LASER is an acronym for 'Light Amplification by Stimulated Emission of Radiation'.
Definition
A laser is a device that utilizes the natural oscillations of atoms or molecules between energy levels to generate a beam of coherent electromagnetic radiation usually in the ultraviolet, visible, or infrared regions of the spectrum.
Historical Context
The concept of the laser was first proposed by physicist Albert Einstein in 1917. The first working laser was built in 1960 by Theodore H. Maiman.
Cultural Significance
Lasers have become ubiquitous in modern society, with applications in various fields including surgery, welding, metal cutting, and entertainment.
Related Concepts
Other related concepts include optical amplifiers, optical resonators, and photonics.
See Also
A device that produces a very narrow, highly concentrated beam of light through the process of light amplification by stimulated emission of radiation.