GEMET

Sprache der Inhalte

Alphabetisch

Hierarchie

Gruppen

radiation > laser

Bevorzugte Bezeichnung

laser

Acronym for Light Amplification by Stimulated Emission of Radiation; a device that produces a powerful, highly directional, monochromatic, coherent beam of light. Laser consist of a transparent cylinder with a reflecting surface at one end and a partially reflecting surface at the other. Light waves are reflected back and forth, some of them emerging at the partially reflecting end. The light source may be a ruby, whose chromium atoms are excited by a flash lamp so that they emit pulses of highly coherent light, or a mixture of inert gases that produce a continuos beam, or a cube of treated gallium arsenide which emits infrared radiation when an electric current passes through it.

radiation

radiations

URI

http://www.eionet.europa.eu/gemet/concept/4698

Herunterladen des Begriffs im SKOS-Format:

RDF/XML TURTLE JSON-LD Erstellt 08.09.04, Geändert am 08.09.04

ACDH-CH
Austrian Centre for Digital Humanities
and Cultural Heritage
Austrian Academy of Sciences

Bäckerstraße 13,
1010 Vienna

T: +43 1 51581-2200
E: acdh-ch@oeaw.ac.at