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Descriptor in English: Lasers
Descriptor in Spanish: Rayos Láser
Descriptor in Portuguese: Lasers
Descriptor in French: Lasers
Entry term(s): Continuous Wave Laser
Continuous Wave Lasers
Laser
Laser, Continuous Wave
Laser, Pulsed
Laser, Q-Switched
Lasers, Continuous Wave
Lasers, Pulsed
Lasers, Q-Switched
Maser
Masers
Pulsed Laser
Pulsed Lasers
Q Switched Lasers
Q-Switched Laser
Q-Switched Lasers
Tree number(s): E07.632.490
E07.710.520
SP4.102.072.092.693.050.384.075.166.027
VS2.006.002.009
Scope note: An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
Annotation: general or unspecified; prefer specifics; laser injuries = LASERS /adv eff + organ / inj but do not coordinate with RADIATION INJURIES or any BURNS term; effect of laser as radiation: coordinate IM with anatomical term, organism or chemical substance / rad eff (IM); LASER THERAPY and LOW-LEVEL LIGHT THERAPY are also available
Allowable Qualifiers: AE adverse effects
CL classification
HI history
SD supply & distribution
SN statistics & numerical data
ST standards
History Note: 65(63)
See also the descriptors: Holography MeSH
Optical Tweezers MeSH
DeCS UI: 8013
Descriptor UI: D007834
Date Established: 1965/01/01
Date of Entry: 1999/01/01
Revision Date: 2018/06/29
Lasers - Preferred
Concept UI M0012248
Scope note An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
Preferred term Lasers
Entry term(s) Laser
Q-Switched Lasers - Narrower
Concept UI M0500188
Preferred term Q-Switched Lasers
Entry term(s) Laser, Q-Switched
Lasers, Q-Switched
Q Switched Lasers
Q-Switched Laser
Pulsed Lasers - Narrower
Concept UI M0500186
Preferred term Pulsed Lasers
Entry term(s) Laser, Pulsed
Lasers, Pulsed
Pulsed Laser
Continuous Wave Lasers - Narrower
Concept UI M0500187
Preferred term Continuous Wave Lasers
Entry term(s) Continuous Wave Laser
Laser, Continuous Wave
Lasers, Continuous Wave
Masers - Related but not broader or narrower
Concept UI M0500189
Scope note The microwave equivalent of LASERS.
Preferred term Masers
Entry term(s) Maser



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