Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Active_laser_medium> ?p ?o }
- Active_laser_medium abstract "The active laser medium (also called gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of electronic or molecular transitions to a lower energy state from a higher energy statepreviously populated by a pump source.Examples of active laser media include:Certain crystals, typically doped with rare-earth ions (e.g. neodymium, ytterbium, or erbium) or transition metal ions (titanium or chromium); most often yttrium aluminium garnet (Y3Al5O12), yttrium orthovanadate (YVO4), or sapphire (Al2O3);Glasses, e.g. silicate or phosphate glasses, doped with laser-active ions;Gases, e.g. mixtures of helium and neon (HeNe), nitrogen, argon, carbon monoxide, carbon dioxide, or metal vapors;Semiconductors, e.g. gallium arsenide (GaAs), indium gallium arsenide (InGaAs), or gallium nitride (GaN). Liquids, in the form of dye solutions as used in dye lasers.In order to lase, the active gain medium must be in a nonthermal energy distribution known as a population inversion. The preparation of this state requires an external energy source and is known as laser pumping. Pumping may be achieved with electrical currents (e.g. semiconductors, or gases via high-voltage discharges) or with light, generated by discharge lamps or by other lasers (semiconductor lasers). More exotic gain media can be pumped by chemical reactions, nuclear fission, or with high-energy electron beams.".
- Active_laser_medium thumbnail LaserLevels1.png?width=300.
- Active_laser_medium wikiPageExternalLink 1892.html.
- Active_laser_medium wikiPageExternalLink active-medium.html.
- Active_laser_medium wikiPageExternalLink gain_media.html.
- Active_laser_medium wikiPageID "40692".
- Active_laser_medium wikiPageLength "9274".
- Active_laser_medium wikiPageOutDegree "60".
- Active_laser_medium wikiPageRevisionID "675016483".
- Active_laser_medium wikiPageWikiLink Absorption_(electromagnetic_radiation).
- Active_laser_medium wikiPageWikiLink Absorption_cross_section.
- Active_laser_medium wikiPageWikiLink Aluminium.
- Active_laser_medium wikiPageWikiLink Amplifier.
- Active_laser_medium wikiPageWikiLink Argon.
- Active_laser_medium wikiPageWikiLink Carbon_dioxide.
- Active_laser_medium wikiPageWikiLink Carbon_monoxide.
- Active_laser_medium wikiPageWikiLink Category:Laser_gain_media.
- Active_laser_medium wikiPageWikiLink Category:Laser_science.
- Active_laser_medium wikiPageWikiLink Cathode_ray.
- Active_laser_medium wikiPageWikiLink Chemical_reaction.
- Active_laser_medium wikiPageWikiLink Chemical_reactions.
- Active_laser_medium wikiPageWikiLink Chromium.
- Active_laser_medium wikiPageWikiLink Cross_section_(physics).
- Active_laser_medium wikiPageWikiLink Crystal.
- Active_laser_medium wikiPageWikiLink Derivative.
- Active_laser_medium wikiPageWikiLink Discharge_lamp.
- Active_laser_medium wikiPageWikiLink Dye_laser.
- Active_laser_medium wikiPageWikiLink Dye_lasers.
- Active_laser_medium wikiPageWikiLink Electron_beam.
- Active_laser_medium wikiPageWikiLink Emission_(electromagnetic_radiation).
- Active_laser_medium wikiPageWikiLink Emission_spectrum.
- Active_laser_medium wikiPageWikiLink Erbium.
- Active_laser_medium wikiPageWikiLink Gain_(laser).
- Active_laser_medium wikiPageWikiLink Gallium_arsenide.
- Active_laser_medium wikiPageWikiLink Gallium_nitride.
- Active_laser_medium wikiPageWikiLink Gas.
- Active_laser_medium wikiPageWikiLink Gas-discharge_lamp.
- Active_laser_medium wikiPageWikiLink Glass.
- Active_laser_medium wikiPageWikiLink Glow_discharge.
- Active_laser_medium wikiPageWikiLink Helium.
- Active_laser_medium wikiPageWikiLink Indium_gallium_arsenide.
- Active_laser_medium wikiPageWikiLink Ion.
- Active_laser_medium wikiPageWikiLink Laser.
- Active_laser_medium wikiPageWikiLink Laser_construction.
- Active_laser_medium wikiPageWikiLink Laser_diode.
- Active_laser_medium wikiPageWikiLink Laser_pumping.
- Active_laser_medium wikiPageWikiLink Laser_science.
- Active_laser_medium wikiPageWikiLink List_of_laser_articles.
- Active_laser_medium wikiPageWikiLink List_of_laser_types.
- Active_laser_medium wikiPageWikiLink Maxwell–Boltzmann_statistics.
- Active_laser_medium wikiPageWikiLink Metastability.
- Active_laser_medium wikiPageWikiLink Metastable.
- Active_laser_medium wikiPageWikiLink Neodymium.
- Active_laser_medium wikiPageWikiLink Neon.
- Active_laser_medium wikiPageWikiLink Nitrogen.
- Active_laser_medium wikiPageWikiLink Nuclear_fission.
- Active_laser_medium wikiPageWikiLink Oscillation.
- Active_laser_medium wikiPageWikiLink Oscillators.
- Active_laser_medium wikiPageWikiLink Oxygen.
- Active_laser_medium wikiPageWikiLink Population_inversion.
- Active_laser_medium wikiPageWikiLink Quasi-continuous_function.
- Active_laser_medium wikiPageWikiLink Rare_earth_element.
- Active_laser_medium wikiPageWikiLink Sapphire.
- Active_laser_medium wikiPageWikiLink Semiconductor.
- Active_laser_medium wikiPageWikiLink Semiconductor_laser.
- Active_laser_medium wikiPageWikiLink Solid-state_laser.
- Active_laser_medium wikiPageWikiLink Spatial_hole_burning.
- Active_laser_medium wikiPageWikiLink Stimulated_emission.
- Active_laser_medium wikiPageWikiLink Titanium.
- Active_laser_medium wikiPageWikiLink Transition_metal.
- Active_laser_medium wikiPageWikiLink Ytterbium.
- Active_laser_medium wikiPageWikiLink Yttrium.
- Active_laser_medium wikiPageWikiLink Yttrium_aluminium_garnet.
- Active_laser_medium wikiPageWikiLink Yttrium_orthovanadate.
- Active_laser_medium wikiPageWikiLink File:LaserLevels1.png.
- Active_laser_medium wikiPageWikiLinkText "Active laser medium".
- Active_laser_medium wikiPageWikiLinkText "Laser crystal".
- Active_laser_medium wikiPageWikiLinkText "active laser media".
- Active_laser_medium wikiPageWikiLinkText "active laser medium".
- Active_laser_medium wikiPageWikiLinkText "active material".
- Active_laser_medium wikiPageWikiLinkText "active media".
- Active_laser_medium wikiPageWikiLinkText "active medium".
- Active_laser_medium wikiPageWikiLinkText "active region".
- Active_laser_medium wikiPageWikiLinkText "active".
- Active_laser_medium wikiPageWikiLinkText "gain medium".
- Active_laser_medium wikiPageWikiLinkText "laser active".
- Active_laser_medium wikiPageWikiLinkText "laser crystal".
- Active_laser_medium wikiPageWikiLinkText "laser gain media".
- Active_laser_medium wikiPageWikiLinkText "laser media".
- Active_laser_medium wikiPageWikiLinkText "laser medium".
- Active_laser_medium wikiPageWikiLinkText "lasing medium".
- Active_laser_medium wikiPageWikiLinkText "saturation intensity".
- Active_laser_medium hasPhotoCollection Active_laser_medium.
- Active_laser_medium wikiPageUsesTemplate Template:Citation_needed.
- Active_laser_medium wikiPageUsesTemplate Template:Refimprove.
- Active_laser_medium subject Category:Laser_gain_media.
- Active_laser_medium subject Category:Laser_science.
- Active_laser_medium hypernym Source.
- Active_laser_medium type Article.
- Active_laser_medium type Article.