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Title: Smith-Purcell radiation emission in aligned nanoparticles

Abstract

Smith-Purcell (SP) radiation produced by interaction of fast electron beams running parallel to strings of nanoparticles is investigated. Results for the radiation emission probability and electron energy loss spectra using finite and infinite strings of Al and silica spheres are presented. Both of these quantities are obtained by solving Maxwell's equations exactly using a multipole expansion approach. The response of the spheres is described in terms of their local frequency-dependent dielectric functions. In silica, the emission probability is seen to coincide with the energy loss probability within the gap region, where the solid cannot absorb any energy. Large emission rates are predicted for Al, suggesting its possible application in tunable soft uv light generation. The dependence of the emission on the size of the spheres, the string period, and the electron energy is discussed in detail. Finite size effects are also studied for strings of 1-15 Al spheres. (c) 2000 The American Physical Society.

Authors:
 [1]
  1. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
Publication Date:
OSTI Identifier:
20216395
Resource Type:
Journal Article
Journal Name:
Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 5; Other Information: PBD: May 2000; Journal ID: ISSN 1063-651X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRON BEAMS; PHOTON EMISSION; ENERGY LOSSES; ALUMINIUM; SILICA; MAXWELL EQUATIONS; THEORETICAL DATA

Citation Formats

Garcia de Abajo, F. J. Smith-Purcell radiation emission in aligned nanoparticles. United States: N. p., 2000. Web. doi:10.1103/PhysRevE.61.5743.
Garcia de Abajo, F. J. Smith-Purcell radiation emission in aligned nanoparticles. United States. doi:10.1103/PhysRevE.61.5743.
Garcia de Abajo, F. J. Mon . "Smith-Purcell radiation emission in aligned nanoparticles". United States. doi:10.1103/PhysRevE.61.5743.
@article{osti_20216395,
title = {Smith-Purcell radiation emission in aligned nanoparticles},
author = {Garcia de Abajo, F. J.},
abstractNote = {Smith-Purcell (SP) radiation produced by interaction of fast electron beams running parallel to strings of nanoparticles is investigated. Results for the radiation emission probability and electron energy loss spectra using finite and infinite strings of Al and silica spheres are presented. Both of these quantities are obtained by solving Maxwell's equations exactly using a multipole expansion approach. The response of the spheres is described in terms of their local frequency-dependent dielectric functions. In silica, the emission probability is seen to coincide with the energy loss probability within the gap region, where the solid cannot absorb any energy. Large emission rates are predicted for Al, suggesting its possible application in tunable soft uv light generation. The dependence of the emission on the size of the spheres, the string period, and the electron energy is discussed in detail. Finite size effects are also studied for strings of 1-15 Al spheres. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevE.61.5743},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
issn = {1063-651X},
number = 5,
volume = 61,
place = {United States},
year = {2000},
month = {5}
}