Spectroscopy of the gases interacting with intense femtosecond laser pulses

As a result of focusing ultrafast Ti: Sapphire laser pulses in a gas, a plasma column is created. The spectrum of the radiation from the excited species in the column might be used as a new spectroscopic source free of plasma continuum. Furthermore, from the photoemission spectra, valuable information on the mechanism of interaction of strong laser pulses with atoms and molecules could be obtained.