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2009
ACL
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C.N.Santos, D.De Sousa Meneses, P.Echegut, D.R.Neuville, A.C.Hernandes, A.Ibanez, 'Structural, dielectric and optical properties of yttrium calcium borate glasses', Appl. Phys. Lett. 94 151901 (2009) doi:10.1063/1.3115796
Structural and optical properties of stable glasses in the Y2O3 – CaO – B2O3 system, containing the same Y/Ca ratio as the YCa4O(BO3)3 (YCOB) crystal, were successfully determined from Raman and reflectance infrared spectroscopy. Changes in optical functions with composition are associated with an increase in the number of nonbridging oxygen and to calcium/yttrium oxides content. Refractive indexes values (from 1.597 to 1.627 at λ = 2 μm) are in good agreement with those of the YCOB crystal, meaning that these glasses are potential candidates for optical applications due to their ease of shaping as large bulk samples or fibers.
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