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Proceedings Paper

GRIN glasses prepared by sol-gel method
Author(s): Maria Laczka; J. Najman; D. Wegrzynek; Marek Wychowaniec
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Paper Abstract

Preparation of radial gradient refractive index glass rods has been undertaken using alcoholate sol-gel method. The investigation were carried out on two oxide systems SiO2-TiO2 and SiO2-Bi2O3. To obtain the gradient of the chemical composition determining the refraction gradient the controlled leaching of gels in HCl was carried out. Materials after leaching were heated up to 950 degrees C at controlled rate. As a result of thermal treatment of leached gels there were obtained bulk glasses in the form of rods with dimensions: length approximately equals 20 mm; diameter approximately equals 2-3 mm. The radial distribution of refractive index in the obtained glass rods was examined in the transmission interference microscope. Applying the X-ray microfluoresence analysis, using capillary optics the profiles of bismuth and titanium concentration were determined for the rods cross-section. On this basis the diffusion parameters D for titantium and bismuth have been calculated.

Paper Details

Date Published: 22 October 1996
PDF: 10 pages
Proc. SPIE 2943, Gradient-Index Optics in Science and Engineering, (22 October 1996); doi: 10.1117/12.255522
Show Author Affiliations
Maria Laczka, Univ. of Mining and Metallurgy (Poland)
J. Najman, Univ. of Mining and Metallurgy (Poland)
D. Wegrzynek, Univ. of Mining and Metallurgy (Poland)
Marek Wychowaniec, Institute of Applied Optics (Poland)


Published in SPIE Proceedings Vol. 2943:
Gradient-Index Optics in Science and Engineering

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