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Updated: Jul 19, 2026

Label-free Single Molecule Detection Using Microtoroid Optical Resonators
Published on: December 29, 2015
Simultaneous multidopant investigation of rare-earth-doped optical fibers by an ion microprobe
Fotios Sidiroglou1, Shane T Huntington, Ann Roberts
1School of Physics, University of Melbourne, Victoria 3010, Australia. fotios@ph.unimelb.edu.au
Abstract:
The relative distribution of five elements present in the core area of several optical fiber samples has been obtained by utilizing nanoscale-secondary ion mass spectrometry. A strong correlation between the rare-earth (RE) ion and aluminum was observed, consistent with aluminum's improving the solubility of the RE ion. The central dip in distribution was less severe than that observed for germanium, characteristic of the collapse process during fabrication of the fiber preform.

