Superfluorescence dynamics in /sup 130/Te/sub 2/
Etienne Boursey, Jaafar Meziane, Ari S. Topouzkhanian
High-resolution analysis results are presented for Te/sub 2/ superfluorescence induced by short pulses from a YAG-pumped dye laser pulses, and a comparison is made with CW-laser-induced fluorescence observed by Fourier transform spectroscopy. A complete identification of the transitions involved, based on intensity measurements and supported by calculated Franck-Condon factors, has been achieved. The cooperative emission in Te/sub 2/ has been studied by time resolved spectroscopy as a function of density. With increasing density or temperature of the sample, the emission changes continuously from characteristic spontaneous emission to superfluorescence. The evolution of the time characteristics of the signal with the number of partners are presented and compared with the predictions of current theories.>
IEEE Journal of Quantum Electronics•Apr 1, 1993•7 citations