Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Refractive index changes in amorphous SiO2 (silica) by swift ion irradiation
Year:2012
Research Areas
  • Engineering
Information
Abstract
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.
International
Si
JCR
Si
Title
Nuclear Instruments and Methods in Physics Research B
ISBN
0167-5087
Impact factor JCR
Impact info
Volume
277
Journal number
From page
126
To page
130
Month
SIN MES
Ranking
Participants
  • 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)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Departamento: Ingeniería Nuclear
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)