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Manipulating glass for photonics
Author(s) -
Fokine Michael
Publication year - 2009
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200881289
Subject(s) - thermal , photonics , diffusion , matrix (chemical analysis) , materials science , chemical bond , differential (mechanical device) , chemical composition , sample (material) , chemical physics , nanotechnology , thermodynamics , chemistry , composite material , physics , optoelectronics , organic chemistry
A generalized concept for local manipulation of three‐dimensional glass materials is described. The basic principle is to use means to deposit energy into the material to enable localized and selective changes in the bond structure of the glass matrix, causing a localized modification of the thermal equilibrium properties of the material. The different regions of the glass will then behave differently when the sample is subsequently heated homogeneously. If the difference in the thermal dynamics between modified and un‐modified regions is significant, thermal treatment of the material can result in a self‐organizing structure. The aim here is to provide a generalized concept of differential systems and self‐organizing structures, using chemical composition Bragg gratings as an example. In this case, differential diffusion results in self‐organizing structures consisting of a variation of the chemical composition, with compositional features smaller than 250 nm. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)