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, October 15, 2018 (8:00 AM) to Wednesday, October 17, 2018 (10:25 PM)

Monday, October 15, 2018

8:00 AM Registration and Coffee
Registration and Coffee
8:00 AM - 8:30 AM
Room: Pueblo Conference Room A
8:30 AM Welcome and Overview
Welcome and Overview
8:30 AM - 9:30 AM
Room: Pueblo Conference Room A
Contributions

8:30 AM Welcome and Overview - Nathan Moody (Los Alamos National Laboratory)

8:40 AM Overview of Photocathode Physics - Ivan Bazarov (Cornell University)
9:30 AM Break
Break
9:30 AM - 9:45 AM
Room: Pueblo Conference Room A
9:45 AM Application Oriented Research: Low Average Current
Application Oriented Research: Low Average Current
9:45 AM - 12:00 PM
Room: Pueblo Conference Room A
Contributions

9:45 AM Review of requirements and challenges for UED/UEM - Renkai Li (SLAC National Accelerator Laboratory)

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

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

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

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

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

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

11:50 AM Workshop Discussion
12:00 PM Working lunch: discussion session (lunch provided)
Working lunch: discussion session (lunch provided)
12:00 PM - 1:30 PM
Room: Pueblo Conference Room A
1:30 PM Application Oriented Research: FEL
Application Oriented Research: FEL
1:30 PM - 3:30 PM
Room: Pueblo Conference Room A
Contributions

1:30 PM Requirements and Challenges of Photocathodes for Free Electron Laser Applications - Bruce Dunham (Stanford Linear Accelerator)

1:50 PM Photocathode research at the UCLA Pegasus Laboratory - Pietro Musumeci (University of California - Los Angeles) Pietro Musumeci

2:10 PM 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)

2:25 PM Ultra-thin two-dimensional crystalline nanoporous coatings as cathode protection layers - J Anibal Boscoboinik (Brookhaven National Laboratory)

2:40 PM Effects of Chemical and Physical Roughness on MTE - Gevork Gevorkian (CBB-Arizona State University)

2:55 PM Increase of intrinsic emittance induced by multiphoton photoemission from copper cathodes illuminated by femtosecond laser pulses - Rui Zhu (Peking University)

3:10 PM Workshop Discussion
3:30 PM Break
Break
3:30 PM - 3:45 PM
Room: Pueblo Conference Room A
3:45 PM Application Oriented Research: Spin Polarized Sources
Application Oriented Research: Spin Polarized Sources
3:45 PM - 6:15 PM
Room: Pueblo Conference Room A
Contributions

3:45 PM Next generation robust polarization photocathodes - Luca Cultrera (Cornell University)

4:05 PM Recent R&D Endeavor on Polarized Photocathodes at JLab - Shukui Zhang (Jefferson Laboratory)

4:25 PM Operation of Jefferson Lab Polarized Electron Sources - Riad Suleiman (Jefferson Laboratory)

4:45 PM Experimental evaluation and Monte Carlo simulation of the thin GaAs photocathodes - Wei Liu (Brookhaven National Laboratory)

5:05 PM Semiconductor photocathode in a transmission electron microscope - Makoto Kuwahara (Nagoya University)

5:25 PM Spin polarized low energy electron microscopy: 3D vector-magnetometry and workfunction mapping - Andreas Schmid (Lawrence Berkeley National Lab)

5:45 PM Spin filters based photocathode - John Smedley (Brookhaven National Laboratory)

6:05 PM Workshop Discussion
6:15 PM 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
6:15 PM - 6:20 PM
Room: Pueblo Conference Room A
6:20 PM
6:20 PM - 8:50 PM
Room: Pueblo Conference Room A
Contributions

6:20 PM Free‐standing bialkali photocathodes using atomically thin substrates - Hisato Yamaguchi

6:30 PM One-step photoemission simulation: Exact triangular barrier solution with bulk and vacuum electronic states - Gowri Adhikari (UIC)

6:40 PM 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)

6:50 PM Eliminating the space charge limit with meta-materials - Dave Dowell (Self)

7:00 PM Holistic Cathode Design - Dave Dowell (Self)

7:10 PM Validity of DFT approaches for the prediction of photocathode performance - Evan Ronald Antoniuk (Stanford)

7:20 PM Characterization, modeling and simulation of photoemission-based electron sources - Ye Chen (DESY)

7:30 PM Study of Mean Transverse Energy (MTE) of (N)UNCD with Tunable Laser Source - Gongxiaohui Chen

7:40 PM Synthesis and characterization of Plasmonic and multilayer structures for uses in Photocathode technologies - Zhengrong Lee (illinois institute of technology)

7:50 PM Diamond-tip Cathodes - Alexander Tafel (University Erlangen-Nuremberg (FAU))

8:00 PM Status of DLA experiments and ACHIP - Alexander Tafel (University Erlangen-Nuremberg (FAU))

8:10 PM The possible utility of nanoscale science and related structural mechanisms in optimizing photoemission emittance and quantum efficiency - Prabhakar Bandaru (University of California - San Diego)

8:20 PM High Brightness Beam Generation by Ultrafast Field Emission Gating - Sergey Kuzikov (Euclid Technology Labs)

8:30 PM Alkali-based Photocathode Degradation - Enrique Batista (LANL)
Tuesday, October 16, 2018

8:00 AM Coffee
Coffee
8:00 AM - 8:25 AM
Room: Pueblo Conference Room A

8:25 AM Welcome and Announcements
Welcome and Announcements
8:25 AM - 8:30 AM
Room: Pueblo Conference Room A
8:30 AM Application Oriented Research: High Average Current
Application Oriented Research: High Average Current
8:30 AM - 10:15 AM
Room: Pueblo Conference Room A
Contributions

8:30 AM Review of requirements and challenges - Carlos Hernandez-Garcia (Jefferson National Laboratory)

8:45 AM Synthesis and x-ray characterization of Cesium Telluride photocathodes - Mengjia Gaowei (Brookhaven National Laboratory)

9:10 AM Cathode thermal decomposition - Howard Padmore (Lawrence Berkeley National Laboratory) John Smedley (Brookhaven National Laboratory)

9:35 AM Manufacturing and Packaging of Reliable Bialkali Photocathodes via Sputtering - Harish Bhandari

9:50 AM Workshop Discussion
10:15 AM Break
Break
10:15 AM - 10:30 AM
Room: Pueblo Conference Room A
10:30 AM Application Oriented Research: Cathode Design
Application Oriented Research: Cathode Design
10:30 AM - 12:30 PM
Room: Pueblo Conference Room A
Contributions

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

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

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

11:15 AM 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 AM Towards photocathodes with elongated lifetimes and high quantum efficiency by passivating with two dimensional materials - Enrique Batista (Los Alamos National Laboratory)

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

12:15 PM Workshop Discussion
12:30 PM Lunch (on own)
Lunch (on own)
12:30 PM - 2:00 PM
Room: Pueblo Conference Room A
2:00 PM Operations and Demonstrations: Normal conducting structures
Operations and Demonstrations: Normal conducting structures
2:00 PM - 3:30 PM
Room: Pueblo Conference Room A
Contributions

2:00 PM Space-charge dominated photoemission in the photocathode RF gun at PITZ - Ye Chen (DESY)

2:15 PM 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)

2:30 PM The LBNL setup for high brightness electron beams characterization and photocathode testing - Daniele Filippetto (Lawrence Berkeley Natonal Laboratory)

2:45 PM Photocathodes for Swiss FEL - Romain Ganter (PSI)

3:00 PM XFEL Facilities at Shanghi - Weishi Wan (ShanghiTech)

3:15 PM The photocathode studies for normal conducting RF gun in Tsinghua University - Jiahang Shao (Tsinghua University and Argonne National Laboratory)
3:30 PM Break
Break
3:30 PM - 3:45 PM
Room: Pueblo Conference Room A
3:45 PM Operations and Demonstrations - Superconducting & DC
Operations and Demonstrations - Superconducting & DC
3:45 PM - 5:45 PM
Room: Pueblo Conference Room A
Contributions

3:45 PM Bialkali Photocathode performance for electron cooling application operated in DC and SRF guns - Erdong Wang (Brookhaven National Laboratory)

4:05 PM Cornell DC cryogun - William Li (Cornell University)

4:25 PM Overcoming challenges related to the operation of photocathodes in SRF photoinjectors - Julius Kuehn (Helmholtz-Zentrum Berlin)

4:45 PM Jlab magnetized gun - Md Abdullah Mamun (Jefferson National Laboratory)

5:05 PM The photocathode research for DC-SRF Photoinjector at Peking University - Huamu Xie (PKU)

5:25 PM 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)
5:45 PM Break
Break
5:45 PM - 6:30 PM
Room: Pueblo Conference Room A

6:30 PM 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
6:30 PM - 9:00 PM
Room: Pueblo Conference Room A
Wednesday, October 17, 2018

8:00 AM Coffee
Coffee
8:00 AM - 8:25 AM
Room: Pueblo Conference Room A

8:25 AM Welcome and Announcements
Welcome and Announcements
8:25 AM - 8:30 AM
Room: Pueblo Conference Room A
8:30 AM Theory and Computation
Theory and Computation
8:30 AM - 10:00 AM
Room: Pueblo Conference Room A
Contributions

8:30 AM Review of requirements and challenges

8:40 AM Timing of photoemission and the dielectric response of metallic surfaces - Luca Castiglioni (University of Zürich)

9:00 AM Perspectives on Alkali Antimonide Semiconductors from Density-Functional Theory - Dan Finkenstadt (U.S. Naval Academy)

9:20 AM Band Structure Interpretation of Mo(100) and W(100) Spectral Emission Properties - Andreas Schroeder (University of Illinois at Chicago)

9:40 AM Emission models and beam dynamics for diamond emitters in a compact source of high brightness beams - Chengkun Huang (Los Alamos National Laboratory)
10:00 AM Break
Break
10:00 AM - 10:15 AM
Room: Pueblo Conference Room A
10:15 AM Theory and Computation - continued
Theory and Computation - continued
10:15 AM - 12:15 PM
Room: Pueblo Conference Room A
Contributions

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

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

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

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

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

11:55 AM Predictive QE Models for PIC Codes Using DFT, TMA, Delay Models, and Optical Models - Kevin Jensen (Naval Research Laboratory)
12:15 PM Working lunch: discussion session (lunch provided)
Working lunch: discussion session (lunch provided)
12:15 PM - 1:45 PM
Room: Pueblo Conference Room A
1:45 PM Novel Research and Applications
Novel Research and Applications
1:45 PM - 3:15 PM
Room: Pueblo Conference Room A
Contributions

1:45 PM The accelerator on a chip with a special focus on source requirements - Alexander Tafel (University Erlangen-Nuremberg (FAU))

2:05 PM 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)

2:25 PM Mapping optical properties of semiconductor heterostructures on the nanometer scale - Shaul Aloni (Lawrence Berkeley National Laboratory)

2:45 PM Workshop Discussion
3:15 PM Break
Break
3:15 PM - 3:30 PM
Room: Pueblo Conference Room A
3:30 PM Session 12: Novel Research and Applications (and concluding discussion)
Session 12: Novel Research and Applications (and concluding discussion)
3:30 PM - 5:00 PM
Room: Pueblo Conference Room A
Contributions

3:30 PM 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)

3:50 PM Femtosecond electron beam emission from ultra-high field laser illumination of nano-blade structures - James Rosenzweig (Unviersity of California - Los Angeles)

4:10 PM Closing the loop between photocathode growth, characterization and emittance measurements: a cryogenic transverse energy meter - Alice Galdi (Cornell University)

4:30 PM Workshop Discussion
5:00 PM Closeout Discussion: General view of workshop, Next P3, comments and future plans
Closeout Discussion: General view of workshop, Next P3, comments and future plans
5:00 PM - 5:15 PM
Room: Pueblo Conference Room A

5:15 PM Adjourn 2018 P3 Workshop
Adjourn 2018 P3 Workshop
5:15 PM - 5:20 PM
Room: Pueblo Conference Room A

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