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The scientific satellite, Diadème with two radio transmitters and a laser - Image by Pline and The Museum of Air and Space in Paris, France

An acronym for Light Amplification by the Stimulated Emission of Radiation, lasers are a focused beam which has many applications in today's world. See the main Laser article for a history of this technology


  • Gas lasers - a laser in which the electric current is discharged through a gas to produce coherent light
  • Laser applications - the uses and benefits of lasers
  • Laser excitation - using lasers to excite isotopes to induce separation or for other purposes
  • Laser transitions - or amplifier transition, a transition between two electronic levels of some laser-active ion
  • Pump lasers - lasers that use energy transfer from an external source into the gain medium of the laser
  • Quantum well lasers - a laser diode in which the active region of the device is narrow enough to cause quantum confinement
  • Ring lasers - a laser in which the laser cavity has the shape of a ring
  • Semiconductor lasers - lasers based on a semiconductor gain media, where optical gain is achieved by stimulated emission at an interband transition
  • Solid-state lasers - a laser that uses a gain medium that is solid rather than liquid or gas
  • Surface emitting lasers - a laser in which light propagates in the direction perpendicular to the surface, a type of semiconductor laser

Pages in category "Lasers"

The following 65 pages are in this category, out of 65 total.

Media in category "Lasers"

This category contains only the following file.