Optical properties of transparent Dy doped Ba2TiSi2O8 glass ceramic |
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Authors: | L.L. Martin |
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Affiliation: | Departamento de Física Fundamental y Experimental, Electrónica y Sistemas, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez, s/n, E-38206 La Laguna, Tenerife, Spain |
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Abstract: | The Ba2TiSi2O8 is a well known piezoelectric, ferroelectric and non-linear crystal. Nanocrystals of Ba2TiSi2O8 doped with 1.5 Dy3+ have been obtained by thermal treatment of a precursor glass and their optical properties have been studied. X-ray diffraction patterns and optical measurements have been carried out on the precursor glass and glass ceramic samples. The emission spectra corresponding to the Dy3+: 4F9/2 → 6H13/2 (575 nm), 4F9/2 → 6H11/2 (670 nm) and 4F9/2 → 6H9/2 (757 nm) transitions have been obtained under laser excitation at 473 nm. These measurements confirm the incorporation of the Dy3+ ions into the Ba2TiSi2O8 nanocrystals which produces an enhancement of luminescence at 575 nm. At this wavelength has been demonstrated a maximum optical amplification around 1.9 cm−1 (∼8.2 dB/cm). |
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Keywords: | Dy3+ Ba2TiSi2O8 Nanocrystals Glass ceramic Glass Optical properties |
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