Effect of Refraction ofp-Polarized Light on Angle-Resolved Photoemission from Surface States on Metals

Abstract
It is suggested that the suppression of normal photoemission from surface states on a W(100) surface near the plasma frequency is due to refraction effects. Two model calculations are presented which are expected to bracket the real situation, and they both exhibit this property. Possible additional effects of refraction on the photoemission cross section are discussed.