Name: Photocathode Physics for Photoinjectors 2018
Start: 2018-10-15T08:00:00-06:00
End: 2018-10-17T22:25:00-06:00
Location: Hilton-Buffalo Thunder

Photocathode Physics for Photoinjectors 2018

from Monday 15 October 2018 (08:00) to Wednesday 17 October 2018 (22:25)

Monday 15 October 2018 ¶

08:00 Registration and Coffee
Registration and Coffee
08:00 - 08:30
Room: Pueblo Conference Room A
08:30 Welcome and Overview
Welcome and Overview
08:30 - 09:30
Room: Pueblo Conference Room A
Contributions

08:30 Welcome and Overview - Nathan Moody (Los Alamos National Laboratory)

08:40 Overview of Photocathode Physics - Ivan Bazarov (Cornell University)
09:30 Break
Break
09:30 - 09:45
Room: Pueblo Conference Room A
09:45 Application Oriented Research: Low Average Current
Application Oriented Research: Low Average Current
09:45 - 12:00
Room: Pueblo Conference Room A
Contributions

09:45 Review of requirements and challenges for UED/UEM - Renkai Li (SLAC National Accelerator Laboratory)

10:05 Spatio-temporal quantum limits for UED/UEM from MTE - Jared Maxson (Cornell University)

10:25 < 10 meV MTE from Cu - Siddharth Karkare (Arizona State University)

10:45 Brightness of nonequilibrium femtosecond photoemission in metallic photocathodes near threshold - Jai Kwan Bae (Cornell)

11:00 Engineered Nanodiamond Photocathodes - Sergey Baryshev (ECE / Michigan State University)

11:15 Computational Screening for New Photocathode Materials - Joshua Paul (University of Florida)

11:30 Laser-triggered nano-emitters for femtosecond pulse generation from flat surfaces - Daniele Filippetto (Lawrence Berkeley Natonal Laboratory)

11:50 Workshop Discussion
12:00 Working lunch: discussion session (lunch provided)
Working lunch: discussion session (lunch provided)
12:00 - 13:30
Room: Pueblo Conference Room A
13:30 Application Oriented Research: FEL
Application Oriented Research: FEL
13:30 - 15:30
Room: Pueblo Conference Room A
Contributions

13:30 Requirements and Challenges of Photocathodes for Free Electron Laser Applications - Bruce Dunham (Stanford Linear Accelerator)

13:50 Photocathode research at the UCLA Pegasus Laboratory - Pietro Musumeci (University of California - Los Angeles) Pietro Musumeci

14:10 In Pursuit of the Narrow Cone; Prospects for 2-photon and n-type Photoemission from Al(x)Ga(1-x)N - Christopher Pierce (Cornell University)

14:25 Ultra-thin two-dimensional crystalline nanoporous coatings as cathode protection layers - J Anibal Boscoboinik (Brookhaven National Laboratory)

14:40 Effects of Chemical and Physical Roughness on MTE - Gevork Gevorkian (CBB-Arizona State University)

14:55 Increase of intrinsic emittance induced by multiphoton photoemission from copper cathodes illuminated by femtosecond laser pulses - Rui Zhu (Peking University)

15:10 Workshop Discussion
15:30 Break
Break
15:30 - 15:45
Room: Pueblo Conference Room A
15:45 Application Oriented Research: Spin Polarized Sources
Application Oriented Research: Spin Polarized Sources
15:45 - 18:15
Room: Pueblo Conference Room A
Contributions

15:45 Next generation robust polarization photocathodes - Luca Cultrera (Cornell University)

16:05 Recent R&D Endeavor on Polarized Photocathodes at JLab - Shukui Zhang (Jefferson Laboratory)

16:25 Operation of Jefferson Lab Polarized Electron Sources - Riad Suleiman (Jefferson Laboratory)

16:45 Experimental evaluation and Monte Carlo simulation of the thin GaAs photocathodes - Wei Liu (Brookhaven National Laboratory)

17:05 Semiconductor photocathode in a transmission electron microscope - Makoto Kuwahara (Nagoya University)

17:25 Spin polarized low energy electron microscopy: 3D vector-magnetometry and workfunction mapping - Andreas Schmid (Lawrence Berkeley National Lab)

17:45 Spin filters based photocathode - John Smedley (Brookhaven National Laboratory)

18:05 Workshop Discussion
18:15 Break - Transition to Vista Rooms A and B for Poster Session and Networking Reception
Break - Transition to Vista Rooms A and B for Poster Session and Networking Reception
18:15 - 18:20
Room: Pueblo Conference Room A
18:20
18:20 - 20:50
Room: Pueblo Conference Room A
Contributions

18:20 Free‐standing bialkali photocathodes using atomically thin substrates - Hisato Yamaguchi

18:30 One-step photoemission simulation: Exact triangular barrier solution with bulk and vacuum electronic states - Gowri Adhikari (UIC)

18:40 First-principles many-body study of the electronic and optical properties of CsK2Sb, a semiconducting material for ultra-bright electron sources - Julius Kuehn (Helmholtz-Zentrum Berlin)

18:50 Eliminating the space charge limit with meta-materials - Dave Dowell (Self)

19:00 Holistic Cathode Design - Dave Dowell (Self)

19:10 Validity of DFT approaches for the prediction of photocathode performance - Evan Ronald Antoniuk (Stanford)

19:20 Characterization, modeling and simulation of photoemission-based electron sources - Ye Chen (DESY)

19:30 Study of Mean Transverse Energy (MTE) of (N)UNCD with Tunable Laser Source - Gongxiaohui Chen

19:40 Synthesis and characterization of Plasmonic and multilayer structures for uses in Photocathode technologies - Zhengrong Lee (illinois institute of technology)

19:50 Diamond-tip Cathodes - Alexander Tafel (University Erlangen-Nuremberg (FAU))

20:00 Status of DLA experiments and ACHIP - Alexander Tafel (University Erlangen-Nuremberg (FAU))

20:10 The possible utility of nanoscale science and related structural mechanisms in optimizing photoemission emittance and quantum efficiency - Prabhakar Bandaru (University of California - San Diego)

20:20 High Brightness Beam Generation by Ultrafast Field Emission Gating - Sergey Kuzikov (Euclid Technology Labs)

20:30 Alkali-based Photocathode Degradation - Enrique Batista (LANL)
Tuesday 16 October 2018 ¶

08:00 Coffee
Coffee
08:00 - 08:25
Room: Pueblo Conference Room A

08:25 Welcome and Announcements
Welcome and Announcements
08:25 - 08:30
Room: Pueblo Conference Room A
08:30 Application Oriented Research: High Average Current
Application Oriented Research: High Average Current
08:30 - 10:15
Room: Pueblo Conference Room A
Contributions

08:30 Review of requirements and challenges - Carlos Hernandez-Garcia (Jefferson National Laboratory)

08:45 Synthesis and x-ray characterization of Cesium Telluride photocathodes - Mengjia Gaowei (Brookhaven National Laboratory)

09:10 Cathode thermal decomposition - Howard Padmore (Lawrence Berkeley National Laboratory) John Smedley (Brookhaven National Laboratory)

09:35 Manufacturing and Packaging of Reliable Bialkali Photocathodes via Sputtering - Harish Bhandari

09:50 Workshop Discussion
10:15 Break
Break
10:15 - 10:30
Room: Pueblo Conference Room A
10:30 Application Oriented Research: Cathode Design
Application Oriented Research: Cathode Design
10:30 - 12:30
Room: Pueblo Conference Room A
Contributions

10:30 Review of requirements and challenges for holistic cathode design - Dave Dowell (Self)

10:35 Towards adaptive, automated growth of photocathodes - Vitaly Pavlenko (Los Alamos National Laboratory)

10:55 Ultra thin-film coatings and Novel approaches toward Superconducting Photocathodes - Linda Spentzouris (Illinois Institute of Technology)

11:15 Interference Photocathodes for Enhanced Quantum Efficiency - Anna Alexander (Universitiy of California - San Diego) Fangze Liu John Smedley (Brookhaven National Laboratory) Nathan Moody (Los Alamos National Laboratory) Prabhakar Bandaru (University of California - San Diego) Vitaly Pavlenko (Los Alamos National Laboratory)

11:35 Towards photocathodes with elongated lifetimes and high quantum efficiency by passivating with two dimensional materials - Enrique Batista (Los Alamos National Laboratory)

11:55 Measurements of physical and chemical roughness of alkali-antimonides - William DeBenedetti (Cornell University)

12:15 Workshop Discussion
12:30 Lunch (on own)
Lunch (on own)
12:30 - 14:00
Room: Pueblo Conference Room A
14:00 Operations and Demonstrations: Normal conducting structures
Operations and Demonstrations: Normal conducting structures
14:00 - 15:30
Room: Pueblo Conference Room A
Contributions

14:00 Space-charge dominated photoemission in the photocathode RF gun at PITZ - Ye Chen (DESY)

14:15 A new photocathode R&D program at the Argonne Wakefield Accelerator facility: photocathode fabrication chamber and higher-power testing with a 1.3 GHz NCRF injector test stand - Eric Wisniewski (Argonne National Laboratory)

14:30 The LBNL setup for high brightness electron beams characterization and photocathode testing - Daniele Filippetto (Lawrence Berkeley Natonal Laboratory)

14:45 Photocathodes for Swiss FEL - Romain Ganter (PSI)

15:00 XFEL Facilities at Shanghi - Weishi Wan (ShanghiTech)

15:15 The photocathode studies for normal conducting RF gun in Tsinghua University - Jiahang Shao (Tsinghua University and Argonne National Laboratory)
15:30 Break
Break
15:30 - 15:45
Room: Pueblo Conference Room A
15:45 Operations and Demonstrations - Superconducting & DC
Operations and Demonstrations - Superconducting & DC
15:45 - 17:45
Room: Pueblo Conference Room A
Contributions

15:45 Bialkali Photocathode performance for electron cooling application operated in DC and SRF guns - Erdong Wang (Brookhaven National Laboratory)

16:05 Cornell DC cryogun - William Li (Cornell University)

16:25 Overcoming challenges related to the operation of photocathodes in SRF photoinjectors - Julius Kuehn (Helmholtz-Zentrum Berlin)

16:45 Jlab magnetized gun - Md Abdullah Mamun (Jefferson National Laboratory)

17:05 The photocathode research for DC-SRF Photoinjector at Peking University - Huamu Xie (PKU)

17:25 Robust Cs2Te and Mg photocathodes in SRF gun at ELBE center successful for CW IR FEL and THz radiation - rong xiang (Helmholtz-Zentrum Dresden-Rossendorf)
17:45 Break
Break
17:45 - 18:30
Room: Pueblo Conference Room A

18:30 Catered Dinner and Evening Presentation, "75 Years in 75 Minutes ... or thereabouts", Dr. Alan Carr, Vista A and B Rooms
Catered Dinner and Evening Presentation, "75 Years in 75 Minutes ... or thereabouts", Dr. Alan Carr, Vista A and B Rooms
18:30 - 21:00
Room: Pueblo Conference Room A
Wednesday 17 October 2018 ¶

08:00 Coffee
Coffee
08:00 - 08:25
Room: Pueblo Conference Room A

08:25 Welcome and Announcements
Welcome and Announcements
08:25 - 08:30
Room: Pueblo Conference Room A
08:30 Theory and Computation
Theory and Computation
08:30 - 10:00
Room: Pueblo Conference Room A
Contributions

08:30 Review of requirements and challenges

08:40 Timing of photoemission and the dielectric response of metallic surfaces - Luca Castiglioni (University of Zürich)

09:00 Perspectives on Alkali Antimonide Semiconductors from Density-Functional Theory - Dan Finkenstadt (U.S. Naval Academy)

09:20 Band Structure Interpretation of Mo(100) and W(100) Spectral Emission Properties - Andreas Schroeder (University of Illinois at Chicago)

09:40 Emission models and beam dynamics for diamond emitters in a compact source of high brightness beams - Chengkun Huang (Los Alamos National Laboratory)
10:00 Break
Break
10:00 - 10:15
Room: Pueblo Conference Room A
10:15 Theory and Computation - continued
Theory and Computation - continued
10:15 - 12:15
Room: Pueblo Conference Room A
Contributions

10:15 Ab initio many-body calculations of the mean transverse energy for proposed high-brightness photocathode materials - Kevin Nangoi (Cornell University)

10:35 Simulating Quantum Efficiency of Polarized Photocathodes - Andrei Afanasev Eric Montgomery (Euclid Techlabs )

10:55 Recent development on the modeling of laser induced electron emission - Peng Zhang (Michigan State University)

11:15 Modeling quantum yield, emittance and surface roughness effects from metallic photocathodes - Dimitre Dimitrov (Tech-X Corp.)

11:35 The Modeling of Delayed Photo-Emission Processes in PIC Codes - John Petillo

11:55 Predictive QE Models for PIC Codes Using DFT, TMA, Delay Models, and Optical Models - Kevin Jensen (Naval Research Laboratory)
12:15 Working lunch: discussion session (lunch provided)
Working lunch: discussion session (lunch provided)
12:15 - 13:45
Room: Pueblo Conference Room A
13:45 Novel Research and Applications
Novel Research and Applications
13:45 - 15:15
Room: Pueblo Conference Room A
Contributions

13:45 The accelerator on a chip with a special focus on source requirements - Alexander Tafel (University Erlangen-Nuremberg (FAU))

14:05 Generation of attosecond electron pulses by inelastic ponderomotive scattering at an optical traveling wave - Martin Kozak (Charles University) Norbert Schönenberger (Friedrich-Alexander-Universität Erlangen-Nürnberg) Peter Hommelhoff (Friedrich-Alexander-Universität Erlangen-Nürnberg) Timo Eckstein (Friedrich-Alexander-Universität Erlangen-Nürnberg)

14:25 Mapping optical properties of semiconductor heterostructures on the nanometer scale - Shaul Aloni (Lawrence Berkeley National Laboratory)

14:45 Workshop Discussion
15:15 Break
Break
15:15 - 15:30
Room: Pueblo Conference Room A
15:30 Session 12: Novel Research and Applications (and concluding discussion)
Session 12: Novel Research and Applications (and concluding discussion)
15:30 - 17:00
Room: Pueblo Conference Room A
Contributions

15:30 Observations of the femtosecond laser-induced emission from the diamond field emitter tips - Dongsung Kim (LANL) Dylan Black (Stanford University) Evgenya Simakov (Los Alamos National Laboratory) Heather Andrews (LANL) Kenneth Leedle (Stanford University) Vitaly Pavlenko (Los Alamos National Laboratory)

15:50 Femtosecond electron beam emission from ultra-high field laser illumination of nano-blade structures - James Rosenzweig (Unviersity of California - Los Angeles)

16:10 Closing the loop between photocathode growth, characterization and emittance measurements: a cryogenic transverse energy meter - Alice Galdi (Cornell University)

16:30 Workshop Discussion
17:00 Closeout Discussion: General view of workshop, Next P3, comments and future plans
Closeout Discussion: General view of workshop, Next P3, comments and future plans
17:00 - 17:15
Room: Pueblo Conference Room A

17:15 Adjourn 2018 P3 Workshop
Adjourn 2018 P3 Workshop
17:15 - 17:20
Room: Pueblo Conference Room A

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