Study of trivalent samarium ion embedded lithium‐based borate glass for high‐density optical memory devices
| Autor: | B. Deva Prasad Raju, Gutturu Rajasekhara Reddy, Kumcham Prasad, Megala Rajesh, Narasimsetti Srinivasa Rao, S. Dhanapandian |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Biophysics Analytical chemistry chemistry.chemical_element Borate glass 02 engineering and technology 01 natural sciences Ion X-Ray Diffraction Borates Spectroscopy Fourier Transform Infrared Emission spectrum Stimulated emission Fourier transform infrared spectroscopy Boron Samarium 010401 analytical chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Spectrometry Fluorescence chemistry Chemistry (miscellaneous) Lithium Compounds Lithium Glass 0210 nano-technology |
| Zdroj: | Luminescence. 35:721-727 |
| ISSN: | 1522-7243 1522-7235 |
| Popis: | Sm3+ ions doped strontium lithium lead borate glasses (SLLB:Sm) were prepared using a conventional melt-quenching technique. The glasses were analyzed using X-ray diffractometry and Fourier transform infrared spectroscopy, optical absorption, fluorescence spectral analysis, and fluorescence lifetime decay. The Judd-Ofelt (J-O) parameters and radiative parameters of the SLLB:Sm10 glass (1.0 mol% Sm3+ ion-doped glass) were calculated using J-O theory. From the emission spectra, among all the synthesized glass, SLLB:Sm10 glass had the highest emission intensity for 4 G5/2 →6 H11/2 transition (610 nm). Emission parameters, such as stimulated emission cross-section and optical gain bandwidth, were calculated. For all concentrations of Sm3+ ions, the decay profile showed an exponential nature and decreased when the Sm3+ ion concentration was increased due to a concentration quenching effect. This result suggests that the synthesized SLLB:Sm10 glass could be used for application in high-density optical memory devices. |
| Databáze: | OpenAIRE |
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