Photocathode Physics for Photoinjectors (P3) 2016

Oct 17, 2016, 8:00 AM → Oct 19, 2016, 6:10 PM US/Eastern

F113 Cebaf Center (Jefferson Lab)

Monday, October 17

8:00 AM → 8:30 AM Coffee/Registration

8:30 AM → 10:00 AM Welcome & Overview

Conveners: Fay Hannon, Ivan Bazarov

slides P3_Info_Slides.pptx

8:30 AM Welcome

Speaker: Fay Hannon (JLab)

Slides WELCOME_To_JEFFERSON_Lab.pptx

8:40 AM Overview of Photocathode Physics

Speaker: John Smedley (BNL)

Slides P3.pptx

Video Smedley1.mp4

9:20 AM Motivation for photocathode source delvelopment

Speaker: John Lewellen

Slides Lewellen_talk_v2.pptx

Video Lewellen.mp4

10:00 AM → 10:15 AM Refreshment Break

10:15 AM → 12:15 PM Semiconductor Manufacture & Measurement

Conveners: John Smedley, Luca Cultrera

10:15 AM Update of Cornell recent photocathode studies growth and operations

Speaker: Luca Cultrera

Slides P3-2016-Cultrera.pptx

Video Cultrera1.mp4

10:40 AM Study of bialkali antimonide photocathode on niobium substrate at JLab

Speaker: Md. Abdhulla Mamun

Slides P3_Mamun-JLab-2016.pptx

Video Mamun1.mp4

10:55 AM BNL sputter growth technique

Speaker: Zihao Ding

Slides Zihao_Ding.pptx

Video Ding.mp4

11:10 AM BNL CHESS Activities

Speaker: Mengjia Goawei

Slides P3_presentation_Mengjia_Gaowei_upload.pdf

Video Goawei.mp4

11:25 AM CERN Alkali antimonide experience

Speaker: Chris Hessler

Slides hessler-2016-10-17-P3-JLAB-v5.pptx

Video Hessler.mp4

11:50 AM DISCUSSION

12:15 PM → 1:45 PM Lunch (on your own)

1:45 PM → 3:15 PM Semiconductor Manufacture & Measurement

Conveners: Matt Poelker, Siddharth Karkare

1:45 PM Simultaneous element evaporation and deposition of multialkali cathodes

Speaker: Jun Feng

Slides Jun_talk_P3_2016.pptx

Video Feng.mp4

2:00 PM A Brief Overview of R&D Efforts towards High Quantum Efficiency and High Polarization Superlattice Photocathodes

Speaker: Shukui Zhang

Slides P3_talk_S_Zhang.pdf

Video SZhang.mp4

2:15 PM Ion implantation studies of bulk GaAs with different surface cleave plane orientations

Speaker: Wei Liu

Slides P3_2016_Wei_Liu_ion_implantation.pptx

Video WLiu.mp4

2:30 PM DISCUSSION

3:15 PM → 3:30 PM Refreshment Break

3:30 PM → 5:45 PM Metals and surface coatings

Conveners: Fay Hannon, Wayne Hess

3:30 PM Intrinsic emittance reduction of copper cathodes

Speaker: Eduard Prat

Slides P3pratv2.pptx

Video Prat.mp4

3:55 PM Photocathode Endeavours at SLAC

Speaker: Theo Vecchione

Slides Photocathode_Endeavors_at_SLAC.pdf

Video veccione.mp4

4:20 PM Emittance growth caused by surface roughness

Speaker: Zhe Zhang

Slides Emittance_Growth_Caused_by_Surface_Roughness_Zhe_Zhang.pdf

Video ZZhang.mp4

4:35 PM Surface analysis and n-machining of a copper photocathode at SPARC_LAB

Speaker: Jessica Scifo

Slides Jlab_workshop_jessica_scifo_2.pptx

Video scifo.mp4

4:50 PM Pb photocathodes in SRF Guns

Speaker: Jacek Sekutowicz

Slides Pb-Cathodes-NN-P3-2016-10-17.pptx

Video Sekutovicz.mp4

5:05 PM DISCUSSION

5:45 PM → 8:00 PM Poster and Networking Reception

Reception and poster session

Tuesday, October 18

8:00 AM → 8:30 AM Coffee

8:30 AM → 9:30 AM Metals and surface coatings

Conveners: Fay Hannon, Wayne Hess

8:30 AM Effects Associated with Ultrashort Pulse Illumination

Speaker: Jared Maxson

Slides P3_2016_maxson_final.pptx

Video Maxon.mp4

8:45 AM Progress in photocathode R&D and preparation for the CLARA accelerator at Daresbury Laboratory

Speaker: Tim Noakes

Slides P3_DL.ppt

Video Noakes.mp4

9:10 AM Plasmonic cathode from industry

Speaker: Hoson To

Slides Hoson_To_-_Plasmonic_Cathodes_for_Industry.pptx

Video To.mp4

9:20 AM DISCUSSION

9:30 AM → 9:55 AM Theory

Conveners: Dimitre Dimitrov, Kevin Jensen

9:30 AM One step photoemission from Ag(111) surface

Speaker: Siddharth Karkare

Slides P3_Ag(111)_1.pptx

Video karkare1.mp4

9:55 AM → 10:15 AM Refreshment Break

10:15 AM → 12:15 PM Theory

10:15 AM Photoemission of electrons from sharp needle tips driven by femtosecond laser pulses: a tutorial

Speaker: Martin Kozak

Slides Photoemission_physics_nanotips_Kozak.pptx

Video Kozak.mp4

10:40 AM DFT-Calculated Properties of Graphene Shield Enhanced Photocathodes

Speaker: Daniel Finkenstadt

Slides P3_Finkenstadt.pdf

Video Finkenstadt.mp4

10:55 AM Quantum Dots Tutorial

Speaker: Andrew Shabaev

Video Shabaev.mp4 Shabaev.mp4

11:20 AM DFT and Graded Composition, Heterostructures and Graphene

Speaker: Andrew Shabaev

11:45 AM DISCUSSION

12:15 PM → 1:45 PM Lunch (on own)

1:45 PM → 3:20 PM Theory

1:45 PM Transfer Matrix Methods

Speaker: Kevin Jensen

Slides P3pres0916.pdf

Video jensen.mp4

2:05 PM Multi-Alkali Cathodes

Speaker: Erdong Wang

Slides From_Erdong_Wang.pptx

Video Wang.mp4

2:20 PM PbTe(111): DFT analysis and experimental results

Speakers: Andreas Schroeder, B.L. Rickman, T Li

Slides P3(2016)PbTe111_Schroeder.ppt

Video Schroeder2.mp4

2:35 PM DISCUSSION

3:20 PM → 3:35 PM Refreshment Break

3:35 PM → 5:00 PM Theory

Convener: Siddharth Karkare

3:35 PM Modeling Electron Emission from Controlled Rough Surfaces

Speaker: Dimitre Dimitrov

Slides dimitrovP3JLabOct16.pdf

Video Dimitrov.mp4

4:00 PM Delayed, Multiply Scattered Emission Effects

Speaker: John Petillo

Slides P3Petillo.pdf

Video Petillo.mp4

4:25 PM Monte Carlo Simulation of Electron Photoemission from Alkali Antimonide Semiconductors

Speaker: Pranav Gupta

Slides P3Draft4Pranav.pptx

Video Gupta.mp4

4:40 PM DISCUSSION

5:00 PM → 5:30 PM The Search for the Elusive Ideal Antimonide Photocathode

Convener: Bob Springer (LANL (former))

slides Abstract.pdf Photocathode_History_Final.pdf

Wednesday, October 19

8:00 AM → 8:30 AM Coffee

8:30 AM → 10:00 AM Ultra-cold sources

Conveners: Ivan Bazarov, Luca Cultrera

8:30 AM Ultra-cold and ultra-fast electron sources

Speaker: Jom Luiten

Slides P3-workshop-JLab-Luiten-19102016.pptx

Video Luiten.mp4

8:55 AM Cryocooling of alkali antimonide

Speaker: Hyeri Lee

Slides Cryogenically_cooled_photocathode_p3_2016_Lee.pptx

Video Lee.mp4

9:20 AM Plasma based sources of cold electrons

Speaker: Klaus Muller-Dethlefs

Slides JLab19Oct16.pptx

Video Dethlefs.mp4

9:45 AM Focused tips arrays for production of cold electron beams

Speaker: Soichiro Tsujino

Slides 2016-10-18_P3_STsujino.pdf

Video tsujino.mp4

10:00 AM → 10:15 AM Refreshment Break

10:15 AM → 11:45 AM Ultra-cold sources

10:15 AM Materials engineering for production of cold electrons

Speaker: Richard Hennig

Slides Materials_Discovery.pdf

Video Hennig.mp4

10:30 AM Limitations on emittance from solid photocathodes from chemical and physical roughness

Speaker: Siddharth Karkare

Slides P3_Surface_nonuniformities.pptx

Video karkare2.mp4

10:55 AM DISCUSSION

11:45 AM → 12:15 PM Applications, funding and future.

Conveners: Carlos Hernandez, Dave Dowell

11:45 AM Cathode Challenges and update for cathode in CW Operation

Speaker: Adam Bartnik

Slides Bartnik-P3.pptx

Video bartnik.mp4

12:00 PM Operation/characterization of alkali antimonide in SRF gun

Speaker: Erdong Wang

Slides Photocathode_preformance_in_SRF_gun.pptx

Video WangE.mp4

12:15 PM → 1:45 PM Lunch (on own)

1:45 PM → 3:30 PM Applications, funding and future.

1:45 PM Semiconductor cathodes in SRF guns/ Cathode challenges and update for cathode operation in SRF guns

Speaker: Jochen Teichert

Slides P3Workshop_teichert.pdf

Video teichert.mp4

2:00 PM LANL Updates and Quantum Dots: photoemission from quantized energy states

Speaker: Nathan Moody

Slides P3_LANL_display_talk.pptx

Video moody2.mp4 Moody.mp4

2:20 PM DISCUSSION

Video novel_discussion.mp4

2:40 PM Electron source requirements for laser-driven dielectric accelerators

Speaker: Joel England

Slides P3_Jlab_England_DLA_v1_NB.pdf

Video england.mp4

3:05 PM DISCUSSION- Future funding

Slides Cornell_CBB.pdf

3:30 PM → 3:45 PM Refreshment Break

3:45 PM → 5:00 PM Applications, funding and future.

3:45 PM Nanotip electron sources for dielectric laser acceleration

Speaker: Martin Kozak

Slides DLA_source_talk_Kozak.pptx

Video Kozak2.mp4

4:10 PM Cathodes for ultrafast electron diffraction and microscopy (UED-UEM) applications

Speaker: Renkai Li

Slides LRK_P3_JLab_cathodes_for_UES.PPTX

Video Li.mp4

4:25 PM Tailoring the emissive properties of photocathodes through materials engineering: Ultra-thin multilayers

Speaker: Daniel Velazquez

Slides P3_JLAB_DVelazquez.pptx

Video velazquez.mp4

4:40 PM DISCUSSION

5:00 PM → 5:10 PM Close

5:10 PM → 6:10 PM Poster Files

5:10 PM Hoffbauer

Poster P3_poster_Hoffbauer.png

5:10 PM Lewellen

Poster P3_poster_Lewellen.png

5:10 PM Mistry

Poster P3Workshop_Preparation_of_Cu_Cathodes_version4.pdf

5:10 PM Moody_3

Poster P3_Poster_Moody.png

5:10 PM Pavlenko

Poster P3_poster_Pavlenko.png

5:10 PM Schroeder

Poster P3-SurfaceRoughness_final.pdf

5:10 PM Suleiman

Poster JLab_P3_October2016_MagBeam_poster.pdf