Investigation of Er coordination in zinc-lead tellurite bulk glasses and silica-hafnia glass ceramics waveguides
Journal of Physics: Conference Series, ISSN: 1742-6596, Vol: 430, Issue: 1
2013
- 1Citations
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Conference Paper Description
We present a comparison of the local structure of erbium in zinc-lead tellurite glasses and in silica-hafnia glass ceramics waveguides prepared using the melt quenching or sol-gel and dip coating techniques respectively. The local environment of Erions was probed using the extended x-ray absorption fine structure (EXAFS) at the L-edge of erbium at room temperature. Significative differences in the first Er-O coordination shells are evidenced. In tellurite glasses, independently on the ZnO/PbO content, the erbium co-ordination number (N) is constant at about 6.5, the distance (R) remains the same at 2.34 Å and the Debye-Waller (σ) is about 0.0150 Å. On the other hand, N is lower at about 5.2 for all the silica-hafnia waveguides, whereas the Er-O distance and the DW factors are changed with time and temperature of thermal annealing.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84877350519&origin=inward; http://dx.doi.org/10.1088/1742-6596/430/1/012089; https://iopscience.iop.org/article/10.1088/1742-6596/430/1/012089; https://dx.doi.org/10.1088/1742-6596/430/1/012089; https://validate.perfdrive.com/fb803c746e9148689b3984a31fccd902/?ssa=0d45e2bf-ec9b-419e-a14d-be429d07205c&ssb=15317214106&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1742-6596%2F430%2F1%2F012089&ssi=b4694142-8427-4aa2-890c-9ff080b67e5b&ssk=support@shieldsquare.com&ssm=54584139937410018480945065233602266&ssn=2080f22306fab09dd4ba73d409b37124d7efa842bdc0-9b7b-4e59-b6efeb&sso=082320fa-9e3578620ac4fb05c4f0f396226a3757695e51cf1f5d6d3e&ssp=14168222861719973963172008471934529&ssq=27312371828420477057441132244331385213914&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJ1em14IjoiN2Y5MDAwZWQ3OGYyMmMtODkyYi00NTZhLWFmZTItMzg4OWE4YzkyNDE0Mi0xNzE5OTQxMTMyNTY0NzcxNTIzNDctMDFmMDQ3ZDE2NmVlMThjNjQ4MDg4IiwicmQiOiJpb3Aub3JnIiwiX191em1mIjoiN2Y2MDAwYjNhMzAxZTctZjI1ZS00ZDM5LTk0NGItYWI5YThmNDQ5MGM2MTcxOTk0MTEzMjU2NDc3MTUyMzQ3LWEzNjEyYmQ3MWI4YmU0OTQ0ODA4OCJ9
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