Radiative lifetimes of neutral and singly ionized atoms of refractory elements

Autor:	Wolfgang Schade, G. Langhans, V. Helbig
Rok vydání:	1995
Předmět:	Dye laser Materials science law Picosecond Radiative transfer Radiation trapping Pulse duration Atomic physics Laser Atomic and Molecular Physics and Optics Fluorescence spectroscopy Photon counting law.invention
Zdroj:	Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 34:151-155
ISSN:	1434-6079 0178-7683
DOI:	10.1007/bf01437683
Popis:	Picosecond laser-induced fluorescence spectroscopy and a pulsed hollow cathode discharge are applied to measure 66 radiative lifetimes of Ta II, Ti II, Ce II, Zr II, Zr I, and Fe I levels. In the present investigation systematic influences like polarization and magnetic field effects, radiation trapping, quenching and the duration of the exciting laser pulse are considered in the data analysis. The selective laser excitation of the levels under investigation is performed by a frequency-stabilized distributed feedback dye laser system and the fluorescence is recorded by photon counting technique to ensure best sensitivity and time-resolution. The typical pulse duration is 100 ps and the spectral bandwidth 0.006 nm. The absolute accuracy of the data is 3 to 6%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b1eba30cff4191c18a2cd0f4eb72014 https://doi.org/10.1007/bf01437683 Zobrazit plný text záznamu Full text from SpringerLink