Title :
Superfluorescence dynamics in 130Te2
Author :
Boursey, E. ; Meziane, J. ; Topouzkhanian, A.
Author_Institution :
CNRS, Univ. Claude Bernard, Villeurbanne, France
fDate :
4/1/1993 12:00:00 AM
Abstract :
High-resolution analysis results are presented for Te2 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 Te2 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
Keywords :
Fourier transform spectra; Franck-Condon factors; molecular fluorescence; optical pumping; superradiance; tellurium; time resolved spectra; 130Te2; Fourier transform spectroscopy; YAG pumped dye laser pulses; YAl5O12; calculated Franck-Condon factors; continuous wave laser induced fluorescence; cooperative emission; high resolution analysis; spontaneous emission; superfluorescence dynamics; time resolved spectroscopy; Fourier transforms; Laser beams; Laser excitation; Laser mode locking; Laser transitions; Optical pulses; Pump lasers; Spectroscopy; Tellurium; Temperature;
Journal_Title :
Quantum Electronics, IEEE Journal of
