Impulsive Surface-Volkov approach for photoelectron emission from surfaces

M.N. FARAGGI; M.S. GRAVIELLE; V.M. SILKIN

Austria

Workshop; 16th. International Workshop on Inelastic Ion-Surface Collisions (IISC); 2006

International Committee of the 16th. IISC

Photoelectron emission from surfaces, induced by short laser pulses, can be employed as a tool to determine the characteristics of the pulse [1]. In a recent work [2] we proposed a distorted wave method -the Surface-Volkov (SV) approximation- to describe the electron emission produced by the interaction of an intense few-cycle laser pulse with a metal surface. In the model the surface is represented within the Band-Structure-Based (BSB) formalism [3], while the action of the electric field is described with the Volkov phase [4].  As an improvement in the previous theory, in this work we develop the Impulsive Surface-Volkov (ISV) approach, which incorporates the effect of the quiver amplitude in the Volkov phase.