Study of Gas-Surface Interactions by Laser-Induced Fluorescence Detection.
Abstract
The scattering of nitric oxide (NO) from a clean single-crystal of silver THE (111) FACE has been studied. The rotational and fine structure distributions of NOXsq pi have been determined as a function of surface temperature and of incident kinetic energy normal to the surface plane. The analysis technique is that of laser-induced fluorescence using a Nd:YAG pumped dye laser which is both frequency doubled and Raman shifted to overlap the NO(gamma) band system in the UV. It is found that the energy transferred into the NO rotational degree of freedom in a single gas-surface encounter is expressed by where E sub r is the mean rotational energy, E sub n the normal component of the NO kinetic energy, E sub s the surface temperature, E wub w a parameter characterizing the NO/Ag(111) well depth, and a and b are coefficients that express the fraction of kinetic and surface energy appearing as rotational excitation.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1984
- Accession Number
- ADA141559
Entities
People
- R. N. Zare
Organizations
- Stanford University