Measurement of the stimulated emission from a cell containing CS2 mole
cules irradiated by two laser pulses is discussed. Both an approximate
adiabatic solution and an exact numerical solution have been used to
explain the results. It has been proved that, to obtain maximal signal
, the pulses must come to the cell in a counterintuitive order, that i
s, the stimulating pulse arrives prior to the pump pulse. The connecti
on with the phenomenon of efficient population transfer has been point
ed out.