Near atomically smooth alkali antimonide photocathode thin films

Feng, Jun; Karkare, Siddharth; Nasiatka, James; Schubert, Susanne; Smedley, John; Padmore, Howard

doi:10.1063/1.4974363

Title: Near atomically smooth alkali antimonide photocathode thin films

Journal Article · 23 January 2017 · Journal of Applied Physics

DOI: https://doi.org/10.1063/1.4974363 · OSTI ID:1379694

^[1]; Karkare, Siddharth ^[1]; Nasiatka, James ^[1]; Schubert, Susanne ^[1]; Smedley, John ^[2]; Padmore, Howard ^[1]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Nano-roughness is one of the major factors degrading the emittance of electron beams that can be generated by high efficiency photocathodes, such as the thermally reacted alkali antimonide thin films. In this paper, we demonstrate a co-deposition based method for producing alkali antimonide cathodes that produce near atomic smoothness with high reproducibility. Here, we calculate the effect of the surface roughness on the emittance and show that such smooth cathode surfaces are essential for operation of alkali antimonide cathodes in high field, low emittance radio frequency electron guns and to obtain ultracold electrons for ultrafast electron diffraction applications.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: AC02-05CH11231; SC0005713

OSTI ID:: 1379694

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 4 Vol. 121; ISSN JAPIAU; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (22)

Specimen Handling, Preparation, and Treatments in Surface Characterization Czanderna, Alvin W.; Powell, Cedric J.; Madey, Theodore E. Methods of Surface Characterization https://doi.org/10.1007/b115644	book	January 1998
Results from the average power laser experiment photocathode injector test Dowell, D. H.; Bethel, S. Z.; Friddell, K. D. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 356, Issue 2-3 https://doi.org/10.1016/0168-9002(94)01327-6	journal	March 1995
High-precision calculation of quasistatic field near a photocathode surface microrelief Gorlov, Timofey Journal of Electrostatics, Vol. 65, Issue 12 https://doi.org/10.1016/j.elstat.2007.05.010	journal	November 2007
Inverse compton scattering gamma ray source Boucher, S.; Frigola, P.; Murokh, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 608, Issue 1, p. S54-S56 https://doi.org/10.1016/j.nima.2009.05.035	journal	September 2009
Latest bialkali photocathode with ultra high sensitivity Nakamura, Kimitsugu; Hamana, Yasumasa; Ishigami, Yoshihiro Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 623, Issue 1 https://doi.org/10.1016/j.nima.2010.02.220	journal	November 2010
First lasing and operation of an ångstrom-wavelength free-electron laser Emma, P.; Akre, R.; Arthur, J. Nature Photonics, Vol. 4, Issue 9 https://doi.org/10.1038/nphoton.2010.176	journal	August 2010
Energy recovery linacs as synchrotron radiation sources (invited) Gruner, Sol M.; Bilderback, Don; Bazarov, Ivan Review of Scientific Instruments, Vol. 73, Issue 3 https://doi.org/10.1063/1.1420754	journal	March 2002
A new Alkali Antimonide Photoemitter with high Sensitivity to Visible Light Sommer, A. H. Applied Physics Letters, Vol. 3, Issue 4 https://doi.org/10.1063/1.1753869	journal	August 1963
High quality single shot diffraction patterns using ultrashort megaelectron volt electron beams from a radio frequency photoinjector Musumeci, P.; Moody, J. T.; Scoby, C. M. Review of Scientific Instruments, Vol. 81, Issue 1 https://doi.org/10.1063/1.3292683	journal	January 2010
Effect of nanoscale surface roughness on transverse energy spread from GaAs photocathodes Karkare, Siddharth; Bazarov, Ivan Applied Physics Letters, Vol. 98, Issue 9 https://doi.org/10.1063/1.3559895	journal	February 2011
Thermal emittance measurements of a cesium potassium antimonide photocathode Bazarov, Ivan; Cultrera, Luca; Bartnik, Adam Applied Physics Letters, Vol. 98, Issue 22 https://doi.org/10.1063/1.3596450	journal	May 2011
A low emittance and high efficiency visible light photocathode for high brightness accelerator-based X-ray light sources Vecchione, T.; Ben-Zvi, I.; Dowell, D. H. Applied Physics Letters, Vol. 99, Issue 3 https://doi.org/10.1063/1.3612916	journal	July 2011
Record high-average current from a high-brightness photoinjector Dunham, Bruce; Barley, John; Bartnik, Adam Applied Physics Letters, Vol. 102, Issue 3 https://doi.org/10.1063/1.4789395	journal	January 2013
A stigmatic ultraviolet-visible monochromator for use with a high brightness laser driven plasma light source Feng, Jun; Nasiatka, J.; Wong, Jared Review of Scientific Instruments, Vol. 84, Issue 8 https://doi.org/10.1063/1.4817587	journal	August 2013
Bi-alkali antimonide photocathodes for high brightness accelerators Schubert, S.; Ruiz-Osés, M.; Ben-Zvi, I. APL Materials, Vol. 1, Issue 3 https://doi.org/10.1063/1.4821625	journal	September 2013
Direct observation of bi-alkali antimonide photocathodes growth via in operando x-ray diffraction studies Ruiz-Osés, M.; Schubert, S.; Attenkofer, K. APL Materials, Vol. 2, Issue 12 https://doi.org/10.1063/1.4902544	journal	December 2014
A novel system for measurement of the transverse electron momentum distribution from photocathodes Feng, J.; Nasiatka, J.; Wan, W. Review of Scientific Instruments, Vol. 86, Issue 1 https://doi.org/10.1063/1.4904930	journal	January 2015
Thermal limit to the intrinsic emittance from metal photocathodes Feng, Jun; Nasiatka, J.; Wan, Weishi Applied Physics Letters, Vol. 107, Issue 13 https://doi.org/10.1063/1.4931976	journal	September 2015
Bi-alkali antimonide photocathode growth: An X-ray diffraction study Schubert, Susanne; Wong, Jared; Feng, Jun Journal of Applied Physics, Vol. 120, Issue 3 https://doi.org/10.1063/1.4959218	journal	July 2016
The transverse energy of electrons emitted from GaAs photocathodes Bradley, D. J.; Allenson, M. B.; Holeman, B. R. Journal of Physics D: Applied Physics, Vol. 10, Issue 1 https://doi.org/10.1088/0022-3727/10/1/013	journal	January 1977
Effects of Surface Nonuniformities on the Mean Transverse Energy from Photocathodes Karkare, Siddharth; Bazarov, Ivan Physical Review Applied, Vol. 4, Issue 2 https://doi.org/10.1103/PhysRevApplied.4.024015	journal	August 2015
Cold electron beams from cryocooled, alkali antimonide photocathodes Cultrera, L.; Karkare, S.; Lee, H. Physical Review Special Topics - Accelerators and Beams, Vol. 18, Issue 11 https://doi.org/10.1103/PhysRevSTAB.18.113401	journal	November 2015

Cited By (8)

Electronic structure and core electron fingerprints of caesium-based multi-alkali antimonides for ultra-bright electron sources Cocchi, Caterina; Mistry, Sonal; Schmeißer, Martin Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-54419-0	journal	December 2019
Electronic Structure of Cesium-based Photocathode Materials from Density Functional Theory: Performance of PBE, SCAN, and HSE06 functionals Saßnick, Holger-Dietrich; Cocchi, Caterina arXiv https://doi.org/10.48550/arxiv.2101.04596	text	January 2021
Quantum Efficiency Enhancement of Bialkali Photocathodes by an Atomically Thin Layer on Substrates Yamaguchi, Hisato; Liu, Fangze; DeFazio, Jeffrey physica status solidi (a), Vol. 216, Issue 23 https://doi.org/10.1002/pssa.201900501	journal	October 2019
Quantum Efficiency Enhancement of Bialkali Photocathodes by an Atomically Thin Layer on Substrates Yamaguchi, Hisato; Liu, Fangze; DeFazio, Jeffrey physica status solidi (a), Vol. 216, Issue 23 https://doi.org/10.1002/pssa.201970076	journal	October 2019
Rb based alkali antimonide high quantum efficiency photocathodes for bright electron beam sources and photon detection applications Cultrera, L.; Gulliford, C.; Bartnik, A. Journal of Applied Physics, Vol. 121, Issue 5 https://doi.org/10.1063/1.4975469	journal	February 2017
A cryogenically cooled high voltage DC photoemission electron source Lee, Hyeri; Liu, Xianghong; Cultrera, Luca Review of Scientific Instruments, Vol. 89, Issue 8 https://doi.org/10.1063/1.5024954	journal	August 2018
Codeposition of ultrasmooth and high quantum efficiency cesium telluride photocathodes Gaowei, M.; Sinsheimer, J.; Strom, D. Physical Review Accelerators and Beams, Vol. 22, Issue 7 https://doi.org/10.1103/physrevaccelbeams.22.073401	journal	July 2019
Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States Moody, Nathan A.; Jensen, Kevin L.; Shabaev, Andrew Physical Review Applied, Vol. 10, Issue 4 https://doi.org/10.1103/physrevapplied.10.047002	journal	October 2018

Similar Records

Bi-alkali antimonide photocathode growth: An X-ray diffraction study

Journal Article · 2016 · Journal of Applied Physics · OSTI ID:1340402

Schubert, Susanne; Wong, Jared; Feng, Jun; +11 more

Bi-alkali antimonide photocathode growth: An X-ray diffraction study

Journal Article · 2016 · Journal of Applied Physics · OSTI ID:1345975

Schubert, Susanne; Wong, Jared; Feng, Jun; +11 more

Bi-alkali antimonide photocathode growth: An X-ray diffraction study

Journal Article · 2016 · Journal of Applied Physics · OSTI ID:22597769

Schubert, Susanne; Wong, Jared; Feng, Jun; +11 more

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY

Title: Near atomically smooth alkali antimonide photocathode thin films

Citation Formats

References (22)

Cited By (8)

Similar Records

Related Subjects