Research Publications in journals:
Refractive index changes in amorphous SiO2 (silica) by swift ion irradiation
Year:2012
Research Areas
- Engineering
Information
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Abstract
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| 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. | |
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International
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Si |
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JCR
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Si |
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Title
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Nuclear Instruments and Methods in Physics Research B |
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ISBN
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0167-5087 |
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Impact factor JCR
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Impact info
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Volume
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277 |
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Journal number
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From page
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126 |
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To page
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130 |
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Month
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SIN MES |
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Ranking
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Open Access publication
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