Abstract
Relative formation efficiencies of the ground state Fe atoms from two-photon dissociation of Fe(CO) 5 have been studied using an unfocused weak laser pulse at 386.0, 368.0, 319.3 and 298.4 nm. The laser wavelengths correspond to a 5D 4 → z 5D 4, a 5D 4 → z 5F 4, a 5D 4 → z 3F 4 and a 5D 4 → y 5D 3 transition frequencies of an Fe atom. The relative amounts of Fe atoms generated by two-photon dissociation of Fe(CO) 5 were obtained by comparing the emission intensities from the excited state of Fe atoms with and without a pulsed dc discharge. The relative formation efficiencies are 100:21:0.2:0.08 as the photon energy decreased.
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