Author/Authors :
Maas ، نويسنده , , D.J and Duncan، نويسنده , , D.I. and van der Meer، نويسنده , , A.F.G. and van der Zande، نويسنده , , W.J and Noordam، نويسنده , , L.D.، نويسنده ,
Abstract :
The anharmonic vibrational ladder of nitric oxide (NO) is climbed by irradiating the molecule with femtosecond infrared (IR) pulses. The free-electron laser FELIX is tuned to λ = 5.3 μm with a bandwidth of Δλ = 0.3 μm, corresponding to a pulse duration of 150 femtoseconds. Transfer to the excited states of NO is monitored by 1 + 1 REMPI. Population is found up to ν″ = 5, the highest level within reach of the IR bandwidth. The average transfer per step of the ladder is found to be 17%.
