Spectral and Time-Resolved Studies of Green Cs2 Fluorescence |
| B. Bieniak, M. Głódź, W. Jastrzębski and J. Szonert Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland |
| Received: December 29, 1992; revised version: April 30, 1993 |
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| The origin and dynamic properties of the green fluorescence of Cs2 excited by laser lines in the 457-488 nm range are studied. Emphasis is placed on the analysis of the 501-527 nrn range. The identified fluorescence line progressions are attributed to the E'(3)1Пu → X1∑+g transition. An extension of the attractive branch of the E'(3)1Пu potential towards longer inter-nuclear distances is reconstructed by the semi-classical method. A narrow feature at 522 nm is found to be connected with a minimum of the difference potentiał. The lifetime values are measured. The multicomponent fluorescence decays are interpreted as evidence of perturbations of the E'(3)1Пu state by a number of bound and repulsive states of dicherent symmetry. The predissociation rates are estimated. |
| DOI: 10.12693/APhysPolA.84.229 PACS numbers: 33.20.Kf, 34.50.Gb |