Free-electron laser
id:
free-electron-laser-162-1343609
title:
Free-electron laser
text:
A free-electron laser (FEL) is a fourth generation light source producing extremely brilliant and short pulses of radiation. An FEL functions much as a laser but employs relativistic electrons as a gain medium instead of using stimulated emission from atomic or molecular excitations. In an FEL, a bunch of electrons passes through a magnetic structure called an undulator or wiggler to generate radiation, which re-interacts with the electrons to make them emit coherently, exponentially increasing
brand slug:
wiki
category slug:
encyclopedia
description:
Laser using electron beam in vacuum as gain medium
original url:
https://en.wikipedia.org/wiki/Free-electron_laser
date created:
2004-08-31T00:29:40Z
date modified:
2024-08-28T03:52:40Z
main entity:
{"identifier":"Q586386","url":"https://www.wikidata.org/entity/Q586386"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/9/9c/Free-electron_laser.jpg","width":5760,"height":3840}
fields total:
13
integrity:
16