A. Burger et al., ULTRAFAST VIBRATIONAL-RELAXATION OF OPTICALLY-EXCITED O2-CENTERS IN KCL AND NACL, Journal of luminescence, 58(1-6), 1994, pp. 287-289
The vibrational relaxation of optically excited O2- centers in KCl and
NaCl has been investigated by studying the optical gain following pic
osecond pulse excitation using a pump-probe technique. The rates for n
onradiative transitions between vibrational levels were estimated to b
e of the order of 3 x 10(11) s-1.