Cold electron beams from cryocooled, alkali antimonide photocathodes
Abstract
In this study we report on the generation of cold electron beams using a Cs3Sb photocathode grown by codeposition of Sb and Cs. By cooling the photocathode to 90 K we demonstrate a significant reduction in the mean transverse energy validating the long-standing speculation that the lattice temperature contributes to limiting the mean transverse energy or intrinsic emittance near the photoemission threshold, opening new frontiers in generating ultrabright beams. At 90 K, we achieve a record low intrinsic emittance of 0.2 μm (rms) per mm of laser spot diameter from an ultrafast (subpicosecond) photocathode with quantum efficiency greater than 7 × 10-5 using a visible laser wavelength of 690 nm.
- Authors:
- Publication Date:
- Research Org.:
- Cornell Univ., Ithaca, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1227526
- Alternate Identifier(s):
- OSTI ID: 1240854
- Grant/Contract Number:
- SC0014338
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Special Topics. Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Special Topics. Accelerators and Beams Journal Volume: 18 Journal Issue: 11; Journal ID: ISSN 1098-4402
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Cultrera, L., Karkare, S., Lee, H., Liu, X., Bazarov, I., and Dunham, B. Cold electron beams from cryocooled, alkali antimonide photocathodes. United States: N. p., 2015.
Web. doi:10.1103/PhysRevSTAB.18.113401.
Cultrera, L., Karkare, S., Lee, H., Liu, X., Bazarov, I., & Dunham, B. Cold electron beams from cryocooled, alkali antimonide photocathodes. United States. https://doi.org/10.1103/PhysRevSTAB.18.113401
Cultrera, L., Karkare, S., Lee, H., Liu, X., Bazarov, I., and Dunham, B. Mon .
"Cold electron beams from cryocooled, alkali antimonide photocathodes". United States. https://doi.org/10.1103/PhysRevSTAB.18.113401.
@article{osti_1227526,
title = {Cold electron beams from cryocooled, alkali antimonide photocathodes},
author = {Cultrera, L. and Karkare, S. and Lee, H. and Liu, X. and Bazarov, I. and Dunham, B.},
abstractNote = {In this study we report on the generation of cold electron beams using a Cs3Sb photocathode grown by codeposition of Sb and Cs. By cooling the photocathode to 90 K we demonstrate a significant reduction in the mean transverse energy validating the long-standing speculation that the lattice temperature contributes to limiting the mean transverse energy or intrinsic emittance near the photoemission threshold, opening new frontiers in generating ultrabright beams. At 90 K, we achieve a record low intrinsic emittance of 0.2 μm (rms) per mm of laser spot diameter from an ultrafast (subpicosecond) photocathode with quantum efficiency greater than 7 × 10-5 using a visible laser wavelength of 690 nm.},
doi = {10.1103/PhysRevSTAB.18.113401},
journal = {Physical Review Special Topics. Accelerators and Beams},
number = 11,
volume = 18,
place = {United States},
year = {Mon Nov 30 00:00:00 EST 2015},
month = {Mon Nov 30 00:00:00 EST 2015}
}
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevSTAB.18.113401
https://doi.org/10.1103/PhysRevSTAB.18.113401
Other availability
Cited by: 40 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Measurement of the tradeoff between intrinsic emittance and quantum efficiency from a NaKSb photocathode near threshold
journal, June 2015
- Maxson, Jared; Cultrera, Luca; Gulliford, Colwyn
- Applied Physics Letters, Vol. 106, Issue 23
Experimental investigation of thermal emittance components of copper photocathode
journal, April 2012
- Qian, H. J.; Li, C.; Du, Y. C.
- Physical Review Special Topics - Accelerators and Beams, Vol. 15, Issue 4
Energy recovery linacs as synchrotron radiation sources (invited)
journal, March 2002
- Gruner, Sol M.; Bilderback, Don; Bazarov, Ivan
- Review of Scientific Instruments, Vol. 73, Issue 3
Bi-alkali antimonide photocathodes for high brightness accelerators
journal, September 2013
- Schubert, S.; Ruiz-Osés, M.; Ben-Zvi, I.
- APL Materials, Vol. 1, Issue 3
Operation of a free-electron laser from the extreme ultraviolet to the water window
journal, June 2007
- Ackermann, W.; Asova, G.; Ayvazyan, V.
- Nature Photonics, Vol. 1, Issue 6
R&D towards cooling of the RHIC Collider
journal, October 2004
- Ben-Zvi, Ilan; Brennan, Joseph; Burrill, Andrew
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 532, Issue 1-2
Thermal emittance measurements of a cesium potassium antimonide photocathode
journal, May 2011
- Bazarov, Ivan; Cultrera, Luca; Bartnik, Adam
- Applied Physics Letters, Vol. 98, Issue 22
High-brightness electron beam evolution following laser-based cleaning of a photocathode
journal, September 2012
- Zhou, F.; Brachmann, A.; Decker, F-J.
- Physical Review Special Topics - Accelerators and Beams, Vol. 15, Issue 9
Ultra-cold electron source with a GaAs-photocathode
journal, October 2004
- Orlov, D. A.; Weigel, U.; Schwalm, D.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 532, Issue 1-2
High-coherence electron bunches produced by femtosecond photoionization
journal, April 2013
- Engelen, W. J.; van der Heijden, M. A.; Bakker, D. J.
- Nature Communications, Vol. 4, Issue 1
Record high-average current from a high-brightness photoinjector
journal, January 2013
- Dunham, Bruce; Barley, John; Bartnik, Adam
- Applied Physics Letters, Vol. 102, Issue 3
Photoemissive, Photoconductive, and Optical Absorption Studies of Alkali-Antimony Compounds
journal, October 1958
- Spicer, W. E.
- Physical Review, Vol. 112, Issue 1
Review and demonstration of ultra-low-emittance photocathode measurements
journal, July 2015
- Lee, Hyeri; Karkare, Siddharth; Cultrera, Luca
- Review of Scientific Instruments, Vol. 86, Issue 7
Cathode R&D for future light sources
journal, October 2010
- Dowell, D. H.; Bazarov, I.; Dunham, B.
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 622, Issue 3
Inverse compton scattering gamma ray source
journal, September 2009
- 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
Maximum Achievable Beam Brightness from Photoinjectors
journal, March 2009
- Bazarov, Ivan V.; Dunham, Bruce M.; Sinclair, Charles K.
- Physical Review Letters, Vol. 102, Issue 10
Electron source concept for single-shot sub-100 fs electron diffraction in the 100 keV range
journal, November 2007
- van Oudheusden, T.; de Jong, E. F.; van der Geer, S. B.
- Journal of Applied Physics, Vol. 102, Issue 9
Energy distributions of electrons emitted from GaAs(Cs, O)
journal, April 2001
- Orlov, D. A.; Hoppe, M.; Weigel, U.
- Applied Physics Letters, Vol. 78, Issue 18
Demonstration of cathode emittance dominated high bunch charge beams in a DC gun-based photoinjector
journal, March 2015
- Gulliford, Colwyn; Bartnik, Adam; Bazarov, Ivan
- Applied Physics Letters, Vol. 106, Issue 9
Thermal emittance and response time measurements of negative electron affinity photocathodes
journal, March 2008
- Bazarov, Ivan V.; Dunham, Bruce M.; Li, Yulin
- Journal of Applied Physics, Vol. 103, Issue 5
Effect of nanoscale surface roughness on transverse energy spread from GaAs photocathodes
journal, February 2011
- Karkare, Siddharth; Bazarov, Ivan
- Applied Physics Letters, Vol. 98, Issue 9
Fundamental photoemission brightness limit from disorder induced heating
journal, October 2013
- Maxson, J. M.; Bazarov, I. V.; Wan, W.
- New Journal of Physics, Vol. 15, Issue 10
A novel system for measurement of the transverse electron momentum distribution from photocathodes
journal, January 2015
- Feng, J.; Nasiatka, J.; Wan, W.
- Review of Scientific Instruments, Vol. 86, Issue 1
Quantum efficiency and thermal emittance of metal photocathodes
journal, July 2009
- Dowell, David H.; Schmerge, John F.
- Physical Review Special Topics - Accelerators and Beams, Vol. 12, Issue 7