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One kind of new Ti3+ luminous center in Ti:Al2O3 crystals
Han, XZ; Feng, XQ; Li, WF; Guo, SG
2020-07-01
Source PublicationOPTICAL MATERIALS
ISSN0925-3467
SubtypeArticle
AbstractIn the optical absorption spectra of Ti:Al2O3 crystal doped with higher concentration of titanium and annealed with hydrogen, in addition to the main absorption band of Ti-Al(3+) (490 nm, 540 nm), a small absorption band of 390 nm and a concomitant small bump on the short-wave side of the 490 nm absorption band was often observed. In this study, an independent optical absorption center that also has doublet structured optical absorption bands at 388 and 460 nm was separated from the above spectra by means of spectral decomposition, and its polarization property and annealing effect are consistent with the main absorption band of It was supposed to be another kind of Ti3+ center related to interstitial Ti3+ locating at the intrinsic vacant octahedral in the corundum structure. Moreover, this Ti3+ center also produced a wide emission band centered at 760 nm, with weaker intensity, which indicated that there were two kinds of Ti3+ luminous centers in Ti:Al2O3 crystal: one is Ti-A(l)3+ in the lattice site of Al, the other is Ti-i(3+) in the interstitial site.
DOI10.1016/j.optmat.2020.109881
WOS KeywordLASER CHARACTERISTICS ; SAPPHIRE ; SPECTROSCOPY ; ABSORPTION ; LUMINESCENCE ; ALPHA-AL2O3 ; COLORATION ; TRANSITION ; GROWTH
Language英语
WOS Research AreaMaterials Science ; Optics
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27932
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Han, XZ,Feng, XQ,Li, WF,et al. One kind of new Ti3+ luminous center in Ti:Al2O3 crystals[J]. OPTICAL MATERIALS,2020.
APA Han, XZ,Feng, XQ,Li, WF,&Guo, SG.(2020).One kind of new Ti3+ luminous center in Ti:Al2O3 crystals.OPTICAL MATERIALS.
MLA Han, XZ,et al."One kind of new Ti3+ luminous center in Ti:Al2O3 crystals".OPTICAL MATERIALS (2020).
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