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| Titel: |
Emission Analysis of Pr3 +& Tm3 +: B2O3-BaO-LiF/AlF3 Glasses |
| Auteur: |
Rudramadevi, B. Hemalatha Rao, B. Vengala Buddhudu, S. |
| Verschenen in: |
Ferroelectrics letters section |
| Paginering: | Jaargang 34 (2007) nr. 5-6 pagina's 124-138 |
| Jaar: |
2007-09 |
| Inhoud: |
We report here on the preparation and emission properties of Pr3+(4f2) and Tm3+ (4f12) ions doped in newly developed to transparent glassy matrices of BBLi (= B2O3-BaO-LiF) BBAl (= B2O3-BaO-AlF3). Under an UV source (355 nm), both the Tm3+: BBLi and Tm3 +: BBAl glasses have shown bright blue emission at 452 nm. With regard to both the Pr3+: BBL and Pr3+: BBAl glasses red emission have been noticed upon excitation with blue excitation wavelength (445 nm).These results have also been obtained from the measurement of their emission spectra. For such emission bands, decay curves have been recorded to obtain their lifetimes. We have prepared optical glasses with good transparency and stability. From the measurement of XRD spectra, amorphous nature of these glasses have been confirmed. Between the two glasses studied, glass containing Li has demonstrated an extended UV transmission and also it has revealed an improved NIR transmission ability compared to the other glass with LiF. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 45 van 160 gevonden artikelen
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