| Literature DB >> 24921319 |
Yinlan Ruan, Keiron Boyd, Hong Ji, Alexandre Francois, Heike Ebendorff-Heidepriem, Jesper Munch, Tanya M Monro.
Abstract
High index Er-Yb codoped tellurite spheres with diameter of 9 μm and good sphericity were fabricated using a CO(2) laser. Upconversion modulated whispering gallery modes with a quality factor of 45,000 were observed in the sphere dipped in methanol. Refractometric sensing with detection sensitivity of 7.7 nm/RIU was demonstrated using a 9 μm diameter sphere. Such high index spheres have the potential to be used for nanoparticle sensing and mid-IR frequency conversion.Entities:
Year: 2014 PMID： 24921319 DOI： 10.1364/OE.22.011995
Source DB: PubMed Journal: Opt Express ISSN： 1094-4087 Impact factor: 3.894