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FREQUENCE INVERSION [4 records]
Record 1 - internal organization data 2024-02-21
Record 1, English
Record 1, Subject field(s)
- Lasers and Masers
Record 1, Main entry term, English
- population inversion threshold
1, record 1, English, population%20inversion%20threshold
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Under thermodynamic equilibrium conditions, almost all atoms or molecules are in the ground state and so it requires more than half of this number to be excited out of the ground state to achieve laser action. This implies that a much larger pumping input would be required to exceed population inversion threshold. 1, record 1, English, - population%20inversion%20threshold
Record 1, French
Record 1, Domaine(s)
- Masers et lasers
Record 1, Main entry term, French
- seuil d’inversion de population
1, record 1, French, seuil%20d%26rsquo%3Binversion%20de%20population
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le seuil d’inversion de population est d’autant plus bas que la fréquence du rayonnement est faible. 2, record 1, French, - seuil%20d%26rsquo%3Binversion%20de%20population
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2024-01-27
Record 2, English
Record 2, Subject field(s)
- Lasers and Masers
- Optics
Record 2, Main entry term, English
- laser action
1, record 2, English, laser%20action
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- laser effect 2, record 2, English, laser%20effect
correct
- lasing 3, record 2, English, lasing
correct
- lasing action 4, record 2, English, lasing%20action
correct
- laser activity 5, record 2, English, laser%20activity
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Generation of visible or infrared light waves having very nearly a single frequency by pumping or exciting electrons into high-energy states in a laser. 6, record 2, English, - laser%20action
Record number: 2, Textual support number: 1 CONT
Lasing, as laser action has come to be called. 7, record 2, English, - laser%20action
Record 2, French
Record 2, Domaine(s)
- Masers et lasers
- Optique
Record 2, Main entry term, French
- effet laser
1, record 2, French, effet%20laser
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- action laser 2, record 2, French, action%20laser
correct, feminine noun
- fonctionnement laser 3, record 2, French, fonctionnement%20laser
correct, masculine noun
- activité du laser 4, record 2, French, activit%C3%A9%20du%20laser
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Production d’une onde électromagnétique par émission stimulée dans un milieu dans lequel a été réalisée une inversion de population. Cette production a lieu lorsque le milieu actif est traversé par une onde de fréquence appropriée. 5, record 2, French, - effet%20laser
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2001-07-09
Record 3, English
Record 3, Subject field(s)
- Telecommunications
- Radio Waves
- Radio Transmission and Reception
Record 3, Main entry term, English
- frequency inversion
1, record 3, English, frequency%20inversion
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Change of sign of the frequency difference between a pair of spectral components of a signal. 2, record 3, English, - frequency%20inversion
Record 3, French
Record 3, Domaine(s)
- Télécommunications
- Ondes radioélectriques
- Émission et réception radio
Record 3, Main entry term, French
- inversion de fréquence
1, record 3, French, inversion%20de%20fr%C3%A9quence
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Telecomunicaciones
- Ondas radioeléctricas
- Radiotransmisión y radiorrecepción
Record 3, Main entry term, Spanish
- inversión de frecuencia
1, record 3, Spanish, inversi%C3%B3n%20de%20frecuencia
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Cambio de signo de la diferencia de frecuencia entre un par de componentes espectrales de una señal. 1, record 3, Spanish, - inversi%C3%B3n%20de%20frecuencia
Record number: 3, Textual support number: 1 OBS
En la señal resultante, los componentes de frecuencia más alta representan a los componentes de frecuencia más baja de la señal original y a la inversa, los componentes de mayor frecuencia original son representados por los componentes finales de más baja frecuencia. 1, record 3, Spanish, - inversi%C3%B3n%20de%20frecuencia
Record 4 - internal organization data 1988-03-02
Record 4, English
Record 4, Subject field(s)
- Environmental Studies and Analyses
- Atmospheric Physics
- Air Pollution
Record 4, Main entry term, English
- inversion frequency
1, record 4, English, inversion%20frequency
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 OBS
Table 1 is the essential result of the study and it reveals a consistent seasonal cycle in inversion frequencies through Southern Canada. 1, record 4, English, - inversion%20frequency
Record 4, French
Record 4, Domaine(s)
- Études et analyses environnementales
- Physique de l'atmosphère
- Pollution de l'air
Record 4, Main entry term, French
- fréquence d'inversion
1, record 4, French, fr%C3%A9quence%20d%27inversion
feminine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record 4, Spanish
Record 4, Textual support, Spanish
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