Evaluation of photocathode emission properties in an electron gun: One-step photoemission from bulk-band to vacuum states

W Andreas Schroeder, Gowri Dulanjalee Adhikari
2019 New Journal of Physics  
A one-step photoemission analysis is developed, using the exact one-dimensional quantum solution for transmission over and through a triangular barrier presented by Forbes and Deane (2011 Proc. R. Soc. A 467 2927), to evaluate the emission properties of a photocathode in an electron gun. The analysis, which employs transverse momentum conservation in electron emission, includes the physical attributes (density of states and energy-momentum dispersion) of both the bulk band emission states and
more » ... e recipient vacuum states in its evaluation of the mean transverse energy and relative quantum efficiency of the emitted electrons.
doi:10.1088/1367-2630/ab0ce2 fatcat:pti7itlw55bfjdhwndopfducry