laser external resonator
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Laser cutting — process on a sheet of steel. CAD (top) and stainless steel laser cut part (bottom) Laser cutting is a technology that uses a laser to cut materials, an … Wikipedia
Laser absorption spectrometry — (LAS) refers to techniques that utilize lasers to assess the concentration or amount of a species in gas phase by absorption spectrometry (AS).It is well known that optical spectroscopic techniques in general and laser based techniques in… … Wikipedia
Laser — For other uses, see Laser (disambiguation). United States Air Force laser experiment … Wikipedia
laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; … Universalium
Laser construction — A laser is constructed from three principal parts:*An energy source (usually referred to as the pump or pump source ), *A gain medium or laser medium , and *Two or more mirrors that form an optical resonator . Pump sourceThe pump source is the… … Wikipedia
Laser diode — Top: a packaged laser diode shown with a penny for scale. Bottom: the laser diode chip is removed from the above package and placed on the eye of a needle for scale … Wikipedia
Resonator — A resonator is a device or system that exhibits resonance or resonant behavior, that is, it naturally oscillates at some frequencies, called its resonance frequencies, with greater amplitude than at others. Although its usage has broadened, the… … Wikipedia
Quantum cascade laser — Quantum cascade lasers (QCLs) are semiconductor lasers that emit in the mid to far infrared portion of the electromagnetic spectrum and were first demonstrated by Jerome Faist, Federico Capasso, Deborah Sivco, Carlo Sirtori, Albert Hutchinson,… … Wikipedia
Optischer Resonator — Ein optischer Resonator ist eine Anordnung von Spiegeln, die dazu dient, Licht möglichst oft hin und her zu reflektieren. Aufgrund von Interferenz bildet sich im Resonator dann eine stehende Welle, wenn die optische Weglänge des Resonators ein… … Deutsch Wikipedia
DBR-Laser — Distributed Feedback Laser, kurz DFB Laser, sind Laserdioden, in denen das aktive Material periodisch strukturiert ist. Die Strukturen wechselnder Brechzahl bilden ein eindimensionales Interferenzgitter bzw. Interferenzfilter (Bragg Reflektor).… … Deutsch Wikipedia
DFB-Laser — Distributed Feedback Laser, kurz DFB Laser, sind Laserdioden, in denen das aktive Material periodisch strukturiert ist. Die Strukturen wechselnder Brechzahl bilden ein eindimensionales Interferenzgitter bzw. Interferenzfilter (Bragg Reflektor).… … Deutsch Wikipedia
