GRIN glasses prepared by sol-gel method

Maria Laczka; J. Najman; D. Wegrzynek; Marek Wychowaniec

doi:10.1117/12.255522

22 October 1996 GRIN glasses prepared by sol-gel method

Maria Laczka, J. Najman, D. Wegrzynek, Marek Wychowaniec

Proceedings Volume 2943, Gradient-Index Optics in Science and Engineering; (1996) https://doi.org/10.1117/12.255522
Event: Gradient-Index Optics in Science and Engineering, 1995, Kazimierz Dolny, Poland

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.

Citation Download Citation

Maria Laczka, J. Najman, D. Wegrzynek, and Marek Wychowaniec "GRIN glasses prepared by sol-gel method", Proc. SPIE 2943, Gradient-Index Optics in Science and Engineering, (22 October 1996); https://doi.org/10.1117/12.255522

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