title: Solid phase formation of silicon nanocrystals by bulk ultrafast laser-matter interaction.
abstract: Ultrashort pulse laser interaction with silica-silicon interfaces is presented as a means for all-solid-phase formation of high-purity silicon nanoparticles in the absence of ablation plumes or any substrate intermixing with surfaces in ambient air. Transmission electron microscopy and Raman spectroscopy provide definitive evidence for creation of nanocrystals in the silica host, while compressive stress in the silicon substrate corroborates the formation of optical waveguides parallel to the tracks.
authors: 1Photonics Group, Department of Electrical and Computer Engineering and Institute for Optical Sciences, University of Toronto, Toronto, Ontario M5S 3G4, Canada. nejadmal@mit.edu
authors: Amir H
authors: AH
authors: Nejadmalayeri
authors: Philip
authors: P
authors: Scrutton
authors: Jacky
authors: J
authors: Mak
authors: Amr S
authors: AS
authors: Helmy
authors: Peter R
authors: PR
authors: Herman
authors: Jonas
authors: J
authors: Burghoff
authors: Stefan
authors: S
authors: Nolte
authors: Andreas
authors: A
authors: Tünnermann
authors: Jörg
authors: J
authors: Kaspar