Silicon-in-silica spheres via axial thermal gradient in-fibre capillary instabilities.

  title={Silicon-in-silica spheres via axial thermal gradient in-fibre capillary instabilities.},
  author={Alexander Gumennik and Lei Wei and Guillaume Lestoquoy and Alexander M. Stolyarov and Xiaoting Jia and Paul H Rekemeyer and Matthew J. Smith and Xiangdong Liang and Benjamin J-B Grena and Steven G. Johnson and Silvija Grade{\vc}ak and Ayman F. Abouraddy and John D. Joannopoulos and Yoel. Fink},
  journal={Nature communications},
The ability to produce small scale, crystalline silicon spheres is of significant technological and scientific importance, yet scalable methods for doing so have remained elusive. Here we demonstrate a silicon nanosphere fabrication process based on an optical fibre drawing technique. A silica-cladded silicon-core fibre with diameters down to 340 nm is continuously fed into a flame defining an axial thermal gradient and the continuous formation of spheres whose size is controlled by the feed… CONTINUE READING
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