Population density modulation in a positive column He-Se+laser discharge

Autor:	P. K. Telbizov, G R Todorov, P. R. Karavassilev, N.V. Sabotinov
Rok vydání:	1994
Předmět:	Physics Oscillation Phase (waves) chemistry.chemical_element Condensed Matter Physics Laser Population density Atomic and Molecular Physics and Optics law.invention chemistry Modulation law Excited state Spontaneous emission Physics::Atomic Physics Atomic physics Helium
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 27:L83-L89
ISSN:	1361-6455 0953-4075
DOI:	10.1088/0953-4075/27/4/004
Popis:	Variation of the spontaneous emission from neutral He excited levels and upper Se+ laser levels with opposite phase has been observed as a result of 100% modulation of the oscillation of a positive column He-Se+ laser in a synchronous detection experimental setup. Qualitative explanation of this effect is proposed based on analysis of the modulation of the population density of the excited levels. Most likely the modulation phase of the lower Se+ laser levels population density is transferred to the excited helium atoms by intermediate modulation of the electron number density in the positive column.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d39ada0182ae374aff128d193d751270 https://doi.org/10.1088/0953-4075/27/4/004 Zobrazit plný text záznamu