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ID number:133334
 
Evaluation:
Published: 10.06.2010.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Kas ir lāzers?
Lāzers ir elektroniski optiska ierīce, kura izstaro
koherentu starojumu. Termins Lāzers ir akronīms
no angļu valodas, t.i., Light Amplification by
Stimulated Emission of Radiation, kas latviski
nozīmē gaismas
pastiprināšana,
izmantojot inducēto
starojumu.
Tipisks lāzera izstarotais gaismas stars ir šaurs, ar mazu nobīdi un ar nemainīgu viļņa garumu (t.i., monohromatisks) izstarots gaismas kūlis.
Pretstats lāzeram ir gaismas avots, piemēram
kvēlspuldze, kura izstaro gaismu visos virzienos
un ar dažādiem viļņa garuma spektriem.

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