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Photocathode Physics for Photoinjectors 2018

15–17 Oct 2018
Hilton-Buffalo Thunder
US/Mountain timezone

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Session

Session 9

Session 9
17 Oct 2018, 08:30
Pueblo Conference Room A (Hilton-Buffalo Thunder)

Pueblo Conference Room A

Hilton-Buffalo Thunder

20 Buffalo Thunder Trail Santa Fe, NM, USA 87506

Conveners

Session 9: Theory and Computation

  • Kevin Jensen (Naval Research Laboratory)

Presentation materials

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  1. 54. Review of requirements and challenges
    17/10/2018, 08:30
    Session 9: Theory and Computation
  2. 56. Timing of photoemission and the dielectric response of metallic surfaces
    Dr Luca Castiglioni (University of Zürich)
    17/10/2018, 08:40
    Session 9: Theory and Computation

    Progress in attosecond science in the past decade has enabled the study of ultrafast electronic
    processes with unprecedented temporal resolution [1]. We extended an interferometric two-photon
    technique named RABBITT [2] based on attosecond XUV pump pulses and a phase-matched IR probe
    field from gas phase to solid surfaces to study the dynamics of the photoelectric effect [3].
    Experiments on...

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  3. 57. Perspectives on Alkali Antimonide Semiconductors from Density-Functional Theory
    Dr Dan Finkenstadt (U.S. Naval Academy)
    17/10/2018, 09:00
    Session 9: Theory and Computation

    In calculating materials properties, a density-functional theory (DFT) has come to represent many functional theories, as well as many-body concepts that go beyond ground-state and density-dependent properties. The average practitioner should be aware of the complexion of DFT. We will outline the modern usage of DFT and its applicability to Alkali Antimonides; specifically, the density of...

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  4. 58. Band Structure Interpretation of Mo(100) and W(100) Spectral Emission Properties
    Dr Andreas Schroeder (University of Illinois at Chicago)
    17/10/2018, 09:20
    Session 9: Theory and Computation

    Measurements of the spectral dependence of the mean transverse energy (MTE) from single crystal Mo(100) and W(100) photocathodes display a non-uniform increase with excess photoemission energy. The observed behavior is attributed to the bulk electronic band structure of the emitting states in the Γ-H direction of these body-centered cubic (bcc) metal crystals; specifically, the influence of...

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  5. 59. Emission models and beam dynamics for diamond emitters in a compact source of high brightness beams
    Dr Chengkun Huang (Los Alamos National Laboratory)
    17/10/2018, 09:40
    Session 9: Theory and Computation

    Many applications, such as compact accelerators and electron microscopy, demand high
    brightness electron beams with small source size and ultra-low-emittance. Diamond emitters
    manufactured from the semiconductor process can be employed as such a compact beam source.
    The micron-scale pyramid structure of the emitter allows enhancement of the external field
    compared to that at the substrate,...

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