I review some of the general aspects of using optical diffractions from laser-induced surface density gratings to probe diffusion of adsorbates. Among examples, the recent progress in the study of quantum tunneling diffusions is emphasized.
Xiangdong Zhu, Xiangdong Zhu,
"Optical diffractions as probes to surface diffusion of adsorbates", Proc. SPIE 1857, Lasers and Optics for Surface Analysis, (2 July 1993); doi: 10.1117/12.148519; https://doi.org/10.1117/12.148519