Radial GRIN glasses in Li2O-Na2O-Al2O3-TiO2-SiO2 systems |
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| Authors: | N. Soodbiswas S. K. Sarkar A. Basuray |
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| Affiliation: | (1) Central Glass and Ceramic Research Institute,, Calcutta-, 700 032,, India;(2) Department of Applied Physics,, University of Calcutta,, 92 APC road,, Calcutta-, 700 009,, India |
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| Abstract: | A series of GRIN glass rods have been developed in Li2O-Na2O-Al2O3-TiO2-SiO2 systems. Negative radial refractive index profiles were generated by exchanging Na+ for Li+ ions in these glass rods. It has been observed that TiO2 plays a vital role in increase in the profile depth and maximum change in the refractive index because of its ambivalent nature. Change in the refractive index can be further increased by increasing the concentration of exchanging cation in the base glass. |
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