ISSN:
1432-0649
Keywords:
PACS: 32.80.Wr; 34.80.Dp; 46.65.Ky
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
1/2 ) atoms in a dense sodium vapour irradiated by nanosecond laser pulses tuned near the 3S→4P transition was investigated. It was observed that the population of Na(4P) atoms remained high only within the laser pulse, in spite of the relatively long lifetime of the 4P level (110.ns)The 3P1/2 level, which is populated as a result of cascade transitions from the higher levels, reached the highest population several nanoseconds after the laser shot. The fast population changes are explained by cascade-stimulated transitions between the excited atomic levels.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s003400050419
Permalink