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POPULATION INVERSION [2 records]
Record 1 - internal organization data 2012-04-17
Record 1, English
Record 1, Subject field(s)
- Lasers and Masers
Record 1, Main entry term, English
- population inversion
1, record 1, English, population%20inversion
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
When more molecules (atoms, ions) in a laser are in a metastable state than in the ground state (a situation needed for sustaining a high rate of stimulated emissions), a "population inversion" is said to exist. Without a population inversion, there can be no lasing action. 2, record 1, English, - population%20inversion
Record 1, French
Record 1, Domaine(s)
- Masers et lasers
Record 1, Main entry term, French
- inversion de population
1, record 1, French, inversion%20de%20population
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Inversion des conditions d'équilibre thermique due à un changement de l'état énergétique du semi-conducteur; la probabilité d'occupation de la bande de conduction est supérieure à celle de la bande de valence. 2, record 1, French, - inversion%20de%20population
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1979-01-24
Record 2, English
Record 2, Subject field(s)
- Electromagnetic Radiation
- Atomic Physics
- Optics
Record 2, Main entry term, English
- population inversion
1, record 2, English, population%20inversion
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A nonequilibrium condition that exists when there are more atoms in the excited state than in the ground state. 1, record 2, English, - population%20inversion
Record 2, French
Record 2, Domaine(s)
- Rayonnements électromagnétiques
- Physique atomique
- Optique
Record 2, Main entry term, French
- inversion des populations
1, record 2, French, inversion%20des%20populations
correct
Record 2, Abbreviations, French
Record 2, Synonyms, French
- inversion de populations 2, record 2, French, inversion%20de%20populations
correct
- inversion de population 3, record 2, French, inversion%20de%20population
correct
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Pour observer véritablement une amplification de l'onde incidente (...) il faut produire une inversion des populations, c'est-à-dire réaliser des conditions spéciales où les atomes à l'état d'énergie supérieure sont plus nombreux que les atomes à l'état inférieur (...) 1, record 2, French, - inversion%20des%20populations
Record 2, Spanish
Record 2, Textual support, Spanish
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