TEMPERATURE EFFECT UP TO 1100 K ON THE XE-2(ASTERISK) EXCIMER LUMINESCENCE USING 2-PHOTON EXCITATION

The temperature effect on the Xe-2 excimer emission near 172 nm was s tudied up to 1100 K. As the temperature is increased, the line shape b ecomes asymmetric, its width increases and its maximum shifts to the b lue. The results were simulated using Franck-Condon calculations, Good agreement between the experimental data and the derived profiles was obtained using a Morse potential for the excited state. The deduced pa rameters for this potential are D-e = 0.51 +/- 0.01 eV, r(e) = 3.06 +/ - 0.05 Angstrom, and beta = 0.85 +/- 0.05a(0)(-1). Comparisons were ma de with available data, (C) 1998 American Institute of Physics.