The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+
The modification of absorption characteristics in rare-earth doped tellurite glasses is important in photonics application. The Er3+/Nd3+ co-doped glasses of the form (69-x)TeO2- 15Li2CO3-15Nb2O5-1Er2O3 -(x)Nd2O3 with x =0.2 and 0.6 mol% are successfully prepared using conventional melt-quenching te...
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| Format: | Conference or Workshop Item |
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2017
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| _version_ | 1796866400326778880 |
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| author | Nurhafizah, Hasim Rohani, Md. Supar |
| author_facet | Nurhafizah, Hasim Rohani, Md. Supar |
| author_sort | Nurhafizah, Hasim |
| collection | ePrints |
| description | The modification of absorption characteristics in rare-earth doped tellurite glasses is important in photonics application. The Er3+/Nd3+ co-doped glasses of the form (69-x)TeO2- 15Li2CO3-15Nb2O5-1Er2O3 -(x)Nd2O3 with x =0.2 and 0.6 mol% are successfully prepared using conventional melt-quenching technique. The Judd-Ofelt analysis is to determine the local structure and bonding in the vicinity of rare-earth ions. The oscillator strengths are calculated from the absorption spectra and used to evaluate Judd-Ofelt intensity parameters (Ωλ, λ =2, 4 and 6). The enhancement or decrement values of Ω4 and Ω6 with the increase of Nd3+ concentration is ascribed to the change in glass network structures. The values of Ω2 are increased from 1.53 to 37.13 (×10-22) cm2 with the increase of Nd3+ concentration which indicate an increase in the covalent nature of Nd-O bond and less centrosymmetrical of the ion sites. The decrease in τrad for each level with the increase of Nd3+ concentration signifies on how fast a particular level gets depopulated. The values of β for the transitions 4G5/2, 2G7/2 → 4I9/2, 2H11/2 → 4I9/2 and 4F9/2 → 4I9/2 are found to lie in between 99.6 to 100.0%. |
| first_indexed | 2024-03-05T21:11:34Z |
| format | Conference or Workshop Item |
| id | utm.eprints-97323 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T21:11:34Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | utm.eprints-973232022-09-28T08:17:21Z http://eprints.utm.my/97323/ The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ Nurhafizah, Hasim Rohani, Md. Supar QC Physics The modification of absorption characteristics in rare-earth doped tellurite glasses is important in photonics application. The Er3+/Nd3+ co-doped glasses of the form (69-x)TeO2- 15Li2CO3-15Nb2O5-1Er2O3 -(x)Nd2O3 with x =0.2 and 0.6 mol% are successfully prepared using conventional melt-quenching technique. The Judd-Ofelt analysis is to determine the local structure and bonding in the vicinity of rare-earth ions. The oscillator strengths are calculated from the absorption spectra and used to evaluate Judd-Ofelt intensity parameters (Ωλ, λ =2, 4 and 6). The enhancement or decrement values of Ω4 and Ω6 with the increase of Nd3+ concentration is ascribed to the change in glass network structures. The values of Ω2 are increased from 1.53 to 37.13 (×10-22) cm2 with the increase of Nd3+ concentration which indicate an increase in the covalent nature of Nd-O bond and less centrosymmetrical of the ion sites. The decrease in τrad for each level with the increase of Nd3+ concentration signifies on how fast a particular level gets depopulated. The values of β for the transitions 4G5/2, 2G7/2 → 4I9/2, 2H11/2 → 4I9/2 and 4F9/2 → 4I9/2 are found to lie in between 99.6 to 100.0%. 2017 Conference or Workshop Item PeerReviewed Nurhafizah, Hasim and Rohani, Md. Supar (2017) The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+. In: 29th Regional Conference of Solid State Science and Technology, RCSSST 2016, 15 - 17 November 2016, Johor Bahru, Johor. http://dx.doi.org/10.4028/www.scientific.net/SSP.268.191 |
| spellingShingle | QC Physics Nurhafizah, Hasim Rohani, Md. Supar The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title | The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title_full | The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title_fullStr | The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title_full_unstemmed | The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title_short | The effect of Nd3+ composition on judd-ofelt analysis of lithium niobate tellurite glasses codoped with Er3+ |
| title_sort | effect of nd3 composition on judd ofelt analysis of lithium niobate tellurite glasses codoped with er3 |
| topic | QC Physics |
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