Gold colloids in sol-gel-derived SiO2 coatings on glass and their linear and nonlinear optical properties

Martin Mennig; Mike Schmitt; Ulrich Becker; Gerald Jung; Helmut K. Schmidt

doi:10.1117/12.188943

13 October 1994 Gold colloids in sol-gel-derived SiO₂ coatings on glass and their linear and nonlinear optical properties

Martin Mennig, Mike Schmitt, Ulrich Becker, Gerald Jung, Helmut K. Schmidt

Author Affiliations +

Proceedings Volume 2288, Sol-Gel Optics III; (1994) https://doi.org/10.1117/12.188943
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

An organic-inorganic synthesis route to Au-colloid containing, transparent SiO₂ coatings has been developed, using four different types of functionalized silanes as stabilizing ligands for the Au. By variation of the kind and the concentration of the stabilizing silane in the sol the onset temperature for the colloid formation varies between 100 and 300 degree(s)C and the final colloid radii can be controlled in a range between 3 and 30 nm after densification of the composite coatings on glass at 500 degree(s)C. The third order polarizability (Chi) _m⁽³) in the metal particles is one order of magnitude higher than in glass composites and exhibits a strong dependence on the ligand.

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Martin Mennig, Mike Schmitt, Ulrich Becker, Gerald Jung, and Helmut K. Schmidt "Gold colloids in sol-gel-derived SiO₂ coatings on glass and their linear and nonlinear optical properties", Proc. SPIE 2288, Sol-Gel Optics III, (13 October 1994); https://doi.org/10.1117/12.188943

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