Abstract
Polarized ultraviolet light from an excimer laser (193 nm) was used to photodesorb and photodissociate N2O adsorbed on a cold Pt(111) surface. The desorbed species and their time-of-flight (TOF) were monitored by resonantly enhanced Multi Photon Ionization (MPI) spectroscopy of N2 and atomic oxygen. We have identified three major channels: thermal desorption of molecular N2, photodesorption of ground electronic state N2O, and ejection of ballistic oxygen atoms.
© 1995 Optical Society of America
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