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Local atomic environment of Cu ions in ion-exchanged silicate glass waveguides: An x-ray absorption spectroscopy study (1997)

D'Acapito, F. ; Colonna, S.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 71 (1997), S. 2611-2613

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: We present an x-ray absorption spectroscopy study at the Cu K edge on Cu-doped soda-lime and BK7 glass waveguides obtained by ion exchange under various preparation conditions. The total electron yield and x-ray fluorescence yield collection modes were used to evidence the chemical behavior of surfacial and deep Cu ions. In all the samples copper is found preferentially as Cu+ throughout the whole exchanged region. The first coordination shell is formed by two to three oxygen atoms at 1.86 Å, much shorter than the Na–O bond (2.3 Å) in soda-lime glasses. © 1997 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.120156

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