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|Title:||Excited state absorption in cubane-like transition metal clusters|
|Authors:||Ji, W. |
|Source:||Ji, W.,Du, H.J.,Shi, S. (1995). Excited state absorption in cubane-like transition metal clusters. Materials Research Society Symposium - Proceedings 374 : 131-136. ScholarBank@NUS Repository.|
|Abstract:||We report an investigation of excited-state absorption in cubane-like transition metal clusters. The fluence-dependent transmittances of the clusters have been measured with using 8-ns laser pulses. Time-resolved transmission measurements show that the triplet-triplet absorption occurs within a few nanoseconds. We have also developed a five-level (two singlet states, two triplet states, and one ionized state) model to simulate the excited-state absorption in these cluster compounds. The comparison between the model and the experimental measurements indicates that the population of the triplet states is created mainly by an ionization-recombination process and the triplet-triplet transitions are responsible for the observed nonlinear absorption.|
|Source Title:||Materials Research Society Symposium - Proceedings|
|Appears in Collections:||Staff Publications|
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