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Title: Novel Plasmonic Photocathodes for Electron-Ion Colliders

Abstract

Our aim was to explore new photocathode materials and schemes to develop strategies and technologies for next generation nuclear physics accelerator capabilities, particularly for Electron Ion Colliders (EIC). We successfully implemented an experimental setup for light incidence at an acute angle onto metallic photocathodes in UHV, in order to excite surface Plasmon resonance, hence increasing light absorption by the metallic surface and tested the photoemitted current. We successfully tested the setup with a hot cathode as well as Plasmonic silver-MgO samples and obtained excellent results. We extended our studies to shorter wavelengths to help defeat the work function of the metal. We also used oblique incidence thin film deposition onto gratings to achieve optimized Plasmonic excitation leading to stronger EM field and also lower emittance. We tested and used adequate software to model our samples and simulate our experimental results. We incorporated the concept of Fano resonances applied to gratings to better interpret our experimental results.

Authors:
 [1]
  1. College of William and Mary, Williamsburg, VA (United States)
Publication Date:
Research Org.:
College of William and Mary, Williamsburg, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1364407
Report Number(s):
DOE-CWM-SC-0012182
DOE Contract Number:  
SC0012182
Resource Type:
Technical Report
Resource Relation:
Related Information: Tailored Fano resonance and localized electromagnetic field enhancement in Ag gratings, by Zhaozhu Li, J. Michael Klopf, Lei Wang, Kaida Yang & Rosa A. Lukaszew, Scientific Reports 7, Article number: 44335 (2017)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; metallic photocathodes; plasmonics; Fano resonance

Citation Formats

Lukaszew, Rosa Alejandra. Novel Plasmonic Photocathodes for Electron-Ion Colliders. United States: N. p., 2017. Web. doi:10.2172/1364407.
Lukaszew, Rosa Alejandra. Novel Plasmonic Photocathodes for Electron-Ion Colliders. United States. doi:10.2172/1364407.
Lukaszew, Rosa Alejandra. Tue . "Novel Plasmonic Photocathodes for Electron-Ion Colliders". United States. doi:10.2172/1364407. https://www.osti.gov/servlets/purl/1364407.
@article{osti_1364407,
title = {Novel Plasmonic Photocathodes for Electron-Ion Colliders},
author = {Lukaszew, Rosa Alejandra},
abstractNote = {Our aim was to explore new photocathode materials and schemes to develop strategies and technologies for next generation nuclear physics accelerator capabilities, particularly for Electron Ion Colliders (EIC). We successfully implemented an experimental setup for light incidence at an acute angle onto metallic photocathodes in UHV, in order to excite surface Plasmon resonance, hence increasing light absorption by the metallic surface and tested the photoemitted current. We successfully tested the setup with a hot cathode as well as Plasmonic silver-MgO samples and obtained excellent results. We extended our studies to shorter wavelengths to help defeat the work function of the metal. We also used oblique incidence thin film deposition onto gratings to achieve optimized Plasmonic excitation leading to stronger EM field and also lower emittance. We tested and used adequate software to model our samples and simulate our experimental results. We incorporated the concept of Fano resonances applied to gratings to better interpret our experimental results.},
doi = {10.2172/1364407},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 20 00:00:00 EDT 2017},
month = {Tue Jun 20 00:00:00 EDT 2017}
}

Technical Report:

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