4 papers
Evidence for Umklapp electron scattering emission from metal photocathodes
I-J. Shan, L. A. Angeloni, W. Andreas Schroeder
Comparison of the measured spectral emission properties of single-crystal Cu(001) and W(111) photocathodes to established photoemission theories reveal evidence for an additional o…
Intrinsic emittance properties of an Fe-doped Beta-Ga2O3(010) photocathode: Ultracold electron emission at 300K and the polaron self-energy
Louis A. Angeloni, Ir-Jene Shan, J. H. Leach +1
Measurements of the spectral emission properties of an iron-doped a beta-Ga2O3(010) photocathode at 300 K reveal the presence of an ultracold contribution to the total electron bea…
Emission Properties of a Hybrid Metallized Diamond(001) Photocathode
Louis A. Angeloni, Ir-Jene Shan, W. Andreas Schroeder
The spectral emission characteristics of a proof-of-concept hybrid metallized diamond(001) photocathode are presented. The quantum efficiency (QE) is shown to be determined by the…
Franck-Condon electron emission from polar semiconductor photocathodes
W. Andreas Schroeder, L. A. Angeloni, I-J. Shan +1
A presented analytical formulation of (optical)phonon-mediated and momentum-resonant Franck-Condon emission of photoexcited electrons from polar semiconductors is shown to be very…