Optical properties of transition-metal ions in zirconium-based metal fluoride glasses and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">MgF</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>crystals

Suzuki, Yohichi; Sibley, W. A.; Bayoumi, O. H. El; Roberts, Thomas M.; Bendow, Bernard

doi:10.1103/physrevb.35.4472

Cited by 49 publications

(24 citation statements)

References 56 publications

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“…By diagonalising the energy matrices for d 5 configuration, the clearly resolved band observed at 520 nm in the optical absorption spectra of PbO-Nb 2 O 5 -P 2 O 5 :MnO glasses (containing MnO up to 1.0 mol%) is assigned to 6 A 1g (S) → 4 T 1g (G) transitions and the crystal field parameter D q and Racah interelectronic repulsion parameter B have been determined as 695 and 780 cm −1 , respectively. The values of the D q and B obtained are consistent with the values reported in the literature for number of other glass systems [37,[50][51][52]. From these values, it may be concluded that in this concentration range divalent manganese ions occupy octahedral positions.…”

Section: Optical Absorptionsupporting

confidence: 91%

Spectroscopic and dielectric studies on MnO doped PbO–Nb2O5–P2O5 glass system

Mohan

Reddy

Jayasankar

et al. 2008

Journal of Alloys and Compounds

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Section: Optical Absorptionsupporting

confidence: 91%

Spectroscopic and dielectric studies on MnO doped PbO–Nb2O5–P2O5 glass system

Mohan

Reddy

Jayasankar

et al. 2008

Journal of Alloys and Compounds

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“…[35] That is to say, the electron transition characteristics of the central ions can potentially be tuned via control of the nature of the metal-ligand interactions. Guided by the theoretical prediction, two different local environments of GaO 6 and BaO 6 octahedron are employed, since they show notable differences, including the inter-nuclear distance of GaÀO and BaÀO bonds and the local arrangement.…”

Section: Resultsmentioning

confidence: 99%

Ligand‐Driven Wavelength‐Tunable and Ultra‐Broadband Infrared Luminescence in Single‐Ion‐Doped Transparent Hybrid Materials

Zhou

Jiang

et al. 2009

Adv Funct Materials

137

124

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Here, tuning of the optical properties of emission centers by tailoring the ligand fields is investigated. Experimentally, it is demonstrated that Ni2+ can act as a single emission species in multiple octahedral local environments. Nanocrystal‐embedded hybrid materials are employed as hosts in order to take advantage of their convenience in local environment design for practical applications. Novel composite gain materials with high transparence are successfully made, and show interesting wavelength‐tunable and ultra‐broadband infrared luminescence covering the whole near‐infrared region from 1 100 to 1 800 nm. The infrared luminescence peak positions can be finely tuned from 1 300 to 1 450 and to 1 570 nm, with the largest full width at half maximum being about 400 nm and covering the telecommunication bands at 1 200–1 500 nm. According to the results of characterization, the unusual luminescence, interestingly, originates from Ni2+ in nanocrystals and the doping efficiency of Ni2+ is surprisingly high. The results demonstrate that the method presented may be an effective way to fabricate multifunctional light sources with various fundamental multifunctional applications from efficient broadband optical amplifiers to bio‐imaging.

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“…Thus, we have concentrated on studies on Ni 2+ ions mainly. Relaxation of excited Ni 2+ ions in glass hosts takes place through non-radiative transitions [2] though relaxation in crystalline hosts such as LiGa 5 O 8 [3] and MgF 2 [4] does occur only radiatively at room temperature. Thus, transparent glass-ceramics with transition metal ions incorporated into crystalline phases appear promising for use as novel materials.…”

Section: Introductionmentioning

confidence: 99%