Self-Amplified Stimulated-Emission
- Self-Amplified Stimulated-Emission
Self-Amplified Spontaneous (or Stimulated) Emission (SASE) is a process within a Free electron laser (FEL) by which a laser beam is created by the high-energy electron beam. The lasing starts up from the random microbunching (i.e., shot noise) on theelectron beam instead of being coherently produced by an input seed laser source. This source is fully transversely coherent at saturation, but, because the radiation starts up from random noise at many radiation wavelengths, the longitudinal coherence of the radiation is less than that of the amplifier case but better than that of spontaneous radiation.
The SPring-8 FEL in Japan has demonstrated this concept [cite web |title=Spring-8 Webpage| url=http://www-xfel.spring8.or.jp/|format= |accessdate=2007-12-21] and it is the principle that will be employed by the Linac Coherent Light Source (LCLS) and the European x-ray free electron laser.
References
Wikimedia Foundation.
2010.
Look at other dictionaries:
Free electron laser — A free electron laser, or FEL, is a laser that shares the same optical properties as conventional lasers such as emitting a beam consisting of coherent electromagnetic radiation which can reach high power, but which uses some very different… … Wikipedia
SASE — can refer to: * Sarajevo Stock Exchange * Self addressed stamped envelope * Self Amplified Stimulated Emission * Şase The number six in the Romanian language (pronounced sha seh) * [http://www.sase.org/index.php?option=com content… … Wikipedia
Optical amplifier — An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from… … Wikipedia
Microscopy — is the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye). There are three well known branches of microscopy, optical,… … Wikipedia
List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general … Wikipedia
Nova laser — Nova was a high power laser built at the Lawrence Livermore National Laboratory (LLNL) in 1984 which conducted advanced inertial confinement fusion (ICF) experiments until its dismantling in 1999. Nova was the first ICF experiment built with the… … Wikipedia
Laser acronyms — Here, is a list of acronyms used in laser physics, applications and technology.A*AOM – acousto optic modulator *APD – avalanche photodiode *APM – additive pulse mode locking *ASE – amplified spontaneous emission *AWG – arrayed waveguide… … Wikipedia
Nova (laser) — View down Nova s laser bay between two banks of beamlines. The blue boxes contain the amplifiers and their flashtube pumps , the tubes between the banks of amplifiers are the spatial filters. Nova was a high power laser built at the Lawrence… … Wikipedia
Weapons technology in the Honorverse — In David Weber s Honor Harrington military science fiction novels, warfare is naturally ubiquitous. Two thousand years in the future, it remains true that humans will devise ever more ingenious ways of causing death and destruction.tarship and… … Wikipedia
Business and Industry Review — ▪ 1999 Introduction Overview Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… … Universalium
