Titanite (var. Pr doped) PL/Laser spectrum, 473 nm laser beam, Lenz et al. 2015
Measurement spectrum
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Measurement details
| Description | PL/Laser spectrum of Titanite (var. Pr doped) |
| Reference | Lenz et al. 2015 Lenz C., Nasdala L., Talla D., Hauzenberger C., Seitz R. & Kolitsch U. (2015). Laser-induced REE3+ photoluminescence of selected accessory minerals — An “advantageous artefact” in Raman spectroscopy. Chemical Geology, 415, 1-16. https://doi.org/10.1016/j.chemgeo.2015.09.001 https://www.sciencedirect.com/science/article/pii/S000925411530022X |
| Material | Titanite (var. Pr doped) [ CaTiSiO5:Pr ] |
| Analysis technique | Laser photoluminescence (PL) |
| Instrument | Horiba LabRam HR Evolution |
| Probe | 473 nm laser beam |
| Det. technology | CCD, Si, Peltier cooled |
| Grating spacing | 600 lines/mm |
| Numerical aperture | 0.9 |
| Channel count | 8110 |
| Energy range | 1.31446 … 2.35597 eV |
| Intensity range | 100 (normalised intensity) |
| Lines | Pr3+ 1.95568 eV (89.2%), 1.97608 eV (40.1%), 1.98631 eV (25.7%), 2.044 eV (65.4%), 2.05363 eV (25%), 2.02689 eV (11.1%), 2.07084 eV (75.8%), 2.1023 eV (9.9%), 1.9092 eV (26.2%), 1.6748 eV (4.9%), 1.41636 eV (100%), 1.42751 eV (70.9%), 1.41271 eV (78.4%), 1.7247 eV (3.2%), 1.8043 eV (2.8%), 1.7568 eV (2.7%) |
Composition
| Element | Atoms | At% | Wt% |
|---|---|---|---|
| Ca | 1 | 12.5 | 20.4 |
| Ti | 1 | 12.5 | 24.4 |
| Si | 1 | 12.5 | 14.3 |
| O | 5 | 62.5 | 40.8 |