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原子和分子束从固体表面的散射是一种用于研究气-固界面互作用动力学的重要技术。把表面散射与激光诱导荧光结合起来打开了测量表面散射分子的内部态分布和速度分布的可能性,这种测量具有高的灵敏度和优异的态分辨率。在本实验中,一束超声速的NO分子束被一个石墨表面或一个铂(111)表面所散射,这些表面或者是洁净的或者是为NO、C和O所复盖。在不同的表面温度T_8对具有两种不同动能的入射分子束,测量了散射分子的角分布。
Scattering of atoms and molecular beams from a solid surface is an important technique for studying the gas-solid interface interaction kinetics. The combination of surface scattering and laser-induced fluorescence opens the possibility of measuring the internal and velocity profiles of surface-scattered molecules with high sensitivity and excellent state resolution. In this experiment, a beam of supersonic NO molecular beams is scattered by a graphite surface or a platinum (111) surface, either clean or covered with NO, C and O. At different surface temperatures T8, the angular distribution of scattering molecules was measured for incident molecular beam with two different kinetic energies.