Memorias de investigación
Artículos en revistas:
Refractive index changes in amorphous SiO2 (silica) by swift ion irradiation
Año:2012
Áreas de investigación
  • Ingenierías
Datos
Descripción
The refractive index changes induced by swift ion-beam irradiation in silica have been measured either by spectroscopic ellipsometry or through the effective indices of the optical modes propagating through the irradiated structure. The optical response has been analyzed by considering an effective homogeneous medium to simulate the nanostructured irradiated system consisting of cylindrical tracks, associated to the ion impacts, embedded into a virgin material. The role of both, irradiation fluence and stopping power, has been investigated. Above a certain electronic stopping power threshold (?2.5 keV/ nm), every ion impact creates an axial region around the trajectory with a fixed refractive index (around n = 1.475) corresponding to a certain structural phase that is independent of stopping power. The results have been compared with previous data measured by means of infrared spectroscopy and small-angle X-ray scattering; possible mechanisms and theoretical models are discussed.
Internacional
Si
JCR del ISI
Si
Título de la revista
Nuclear Instruments and Methods in Physics Research B
ISSN
0167-5087
Factor de impacto JCR
Información de impacto
Volumen
277
DOI
Número de revista
Desde la página
126
Hasta la página
130
Mes
SIN MES
Ranking
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Participantes
  • Autor: Ovidio Yordanis Peña Rodriguez UPM
  • Autor: J. Manzano-Santamaria EURATOM CIEMAT
  • Autor: J. Olivares Centro de Micro-Análisis de Materiales
  • Autor: Antonio Juan Rivera de Mena UPM
  • Autor: F. Agulló-López Centro de Micro-Análisis de Materiales
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Departamento: Ingeniería Nuclear
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear