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Title: Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States

Abstract

Here, the development of photoemission electron sources to specifically address the competing andnincreasingly stringent requirements of advanced light sources such as X-ray Free Electron Lasers (XFELs) motivates a comprehensive material-centric approach that integrates predictive compu- tational physics models, advanced nano-synthesis methods, and sophisticated surface science char- acterization with in situ correlated study of photoemission performance and properties. Related efforts in material science are adopting various forms of nanostructure (such as compositionally graded stoichiometry in heterostructured architectures, and quantum features) allowing for tailored electronic structure to control and enhance opto-electronic properties. These methods influence the mechanisms of photoemission (absorption, transport, and emission) but have not, as yet, been systematically considered for use in photocathode applications. Recent results and near-term op- portunities are described to exploit controlled functionality of nanomaterials for photoemission. An overview of the requirements and status is provided.

Authors:
 [1];  [2];  [2];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Naval Research Lab., Washington, D.C. (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. United States Naval Academy, Annapolis, MD (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1487258
Report Number(s):
BNL-209758-2018-JAAM
Journal ID: ISSN 2331-7019; PRAHB2
Grant/Contract Number:  
SC0012704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Applied
Additional Journal Information:
Journal Volume: 10; Journal Issue: 4; Journal ID: ISSN 2331-7019
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Photoemissions; Graphene; Quantum Dots; Tunneling

Citation Formats

Moody, Nathan A., Jensen, Kevin L., Shabaev, Andrew, Lambrakos, Samuel G., Smedley, John, Finkenstadt, Daniel, Pietryga, Jeffrey M., Anisimov, Petr M., Pavlenko, Vitaly, Batista, Enrique R., Lewellen, John W., Liu, Fangze, Gupta, Gautam, Mohite, Aditya, Yamaguchi, Hisato, Hoffbauer, Mark A., and Robel, István. Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States. United States: N. p., 2018. Web. doi:10.1103/PhysRevApplied.10.047002.
Moody, Nathan A., Jensen, Kevin L., Shabaev, Andrew, Lambrakos, Samuel G., Smedley, John, Finkenstadt, Daniel, Pietryga, Jeffrey M., Anisimov, Petr M., Pavlenko, Vitaly, Batista, Enrique R., Lewellen, John W., Liu, Fangze, Gupta, Gautam, Mohite, Aditya, Yamaguchi, Hisato, Hoffbauer, Mark A., & Robel, István. Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States. United States. doi:10.1103/PhysRevApplied.10.047002.
Moody, Nathan A., Jensen, Kevin L., Shabaev, Andrew, Lambrakos, Samuel G., Smedley, John, Finkenstadt, Daniel, Pietryga, Jeffrey M., Anisimov, Petr M., Pavlenko, Vitaly, Batista, Enrique R., Lewellen, John W., Liu, Fangze, Gupta, Gautam, Mohite, Aditya, Yamaguchi, Hisato, Hoffbauer, Mark A., and Robel, István. Wed . "Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States". United States. doi:10.1103/PhysRevApplied.10.047002.
@article{osti_1487258,
title = {Perspectives on Designer Photocathodes for X-ray Free-Electron Lasers: Influencing Emission Properties with Heterostructures and Nanoengineered Electronic States},
author = {Moody, Nathan A. and Jensen, Kevin L. and Shabaev, Andrew and Lambrakos, Samuel G. and Smedley, John and Finkenstadt, Daniel and Pietryga, Jeffrey M. and Anisimov, Petr M. and Pavlenko, Vitaly and Batista, Enrique R. and Lewellen, John W. and Liu, Fangze and Gupta, Gautam and Mohite, Aditya and Yamaguchi, Hisato and Hoffbauer, Mark A. and Robel, István},
abstractNote = {Here, the development of photoemission electron sources to specifically address the competing andnincreasingly stringent requirements of advanced light sources such as X-ray Free Electron Lasers (XFELs) motivates a comprehensive material-centric approach that integrates predictive compu- tational physics models, advanced nano-synthesis methods, and sophisticated surface science char- acterization with in situ correlated study of photoemission performance and properties. Related efforts in material science are adopting various forms of nanostructure (such as compositionally graded stoichiometry in heterostructured architectures, and quantum features) allowing for tailored electronic structure to control and enhance opto-electronic properties. These methods influence the mechanisms of photoemission (absorption, transport, and emission) but have not, as yet, been systematically considered for use in photocathode applications. Recent results and near-term op- portunities are described to exploit controlled functionality of nanomaterials for photoemission. An overview of the requirements and status is provided.},
doi = {10.1103/PhysRevApplied.10.047002},
journal = {Physical Review Applied},
number = 4,
volume = 10,
place = {United States},
year = {Wed Oct 17 00:00:00 EDT 2018},
month = {Wed Oct 17 00:00:00 EDT 2018}
}

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