@article{5821, author = {D. J. Maas and D. I. Duncan and A. F. G. van der Meer and W. J. van der Zande and L. D. Noordam}, title = {Vibrational ladder climbing in NO by ultrashort infrared laser pulses}, 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 lambda = 5.3 mu m with a bandwidth of Delta lambda = 0.3 mu m, 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 upsilon '' = 5, the highest level within reach of the IR bandwidth. The average transfer per step of the ladder is found to be 17%. (C) 1997 Elsevier Science B.V.}, year = {1997}, journal = {Chemical Physics Letters}, volume = {270}, number = {1-2}, pages = {45-49}, month = {May 16}, isbn = {0009-2614}, doi = {10.1016/s0009-2614(97)00323-0}, language = {eng}, }