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20202026
most citedUltracold electrons via Near-Threshold Photoemission from Single-Crystal Cu(100)

60 citations · 62 across the 5 of their papers we have counts for

collaborators

5 papers

cond-mat.mtrl-sci2026

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…

cond-mat.mtrl-sci2025

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…

physics.acc-ph2025

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…

cond-mat.mtrl-sci2024★ 2 cited

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…

physics.acc-ph2020★ 60 cited

Ultracold electrons via Near-Threshold Photoemission from Single-Crystal Cu(100)

Siddharth Karkare, Gowri Adhikari, W. Andreas Schroeder +4

Achieving a low mean transverse energy or temperature of electrons emitted from the photocathode-based electron sources is critical to the development of next-generation and compac…