Polarized spectral properties of Sm:CaGdAlO 4 crystal for reddish-orange laser

Xu, Xiaodong; Hu, Zongwen; Li, Ruijuan; Li, Dongzhen; Jiang, Di; Su, Liangbi; Yang, Qiuhong; Sai, Qinglin; Tang, Huili; Wang, Qing‐Guo; Strzęp, Adam; Xu, Jun

doi:10.1016/j.optmat.2017.04.046

Cited by 16 publications

(3 citation statements)

References 22 publications

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“…The calculated Ω 2 , Ω 4 , and Ω 6 for Sm 3+ ‐doped YSZ are 5.46 × 10 −20 cm 2 , 10.70 × 10 −20 cm 2 , and 12.67 × 10 −20 cm 2 respectively. It should be noted that the magnitude of Ω 2 is inversely related to the site symmetry, but directly proportional to degree of covalency, whilst Ω 4 and Ω 6 are related to the viscosity and rigidity of the matrix . In the present study, the trend in Ω t was in the order Ω 2 < Ω 4 < Ω 6 , which is the same as that reported by Gurushantha et al for nanocrystalline samples, and is consistent with the conclusion from analysis of the emission data of a relatively high symmetry at the Sm 3+ site.…”

Section: Resultssupporting

confidence: 92%

“…Introduction of Sm 3+ into the YSZ host causes the degenerate energy level to split as a result of the influence of the Coulomb field and covalent overlap of the 4 f electron shell with ligand electron shells. The strong absorption bands at around 364, 406, 421, 466, 1071, 1219, 1347, and 1474 nm have been reported to correspond to transitions from the 6 H 5/2 ground state to the excited states 4 D 1/2 + 4 L 17/2 + 6 P 7/2 + 4 K 13/2 + 4 F 9/2 + 4 D 3/2 (364 nm), 4 G 11/2 + 4 L 15/2 + 4 K 11/2 + 6 P 3/2 + 4 F 7/2 + 4 L 13/2 + 6 P 5/2 + 4 P 5/2 (406 nm), 4 F 5/2 + 4 I 5/2 + 4 G 9/2 + 4 M 17/2 (421 nm), 4 G 7/2 + 4 I 9/2 + 4 M 15/2 + 4 I 11/2 + 4 I 13/2 (466 nm), 6 F 9/2 (1071 nm), 6 F 7/2 (1219 nm), 6 F 5/2 (1347 nm), and 6 F 3/2 + 6 H 15/2 + 6 F 1/2 (1474 nm) respectively. The appearance of these absorption peaks demonstrates that the Sm 3+ modified YSZ crystals have good responses to light in the visible‐NIR region.…”

Section: Resultsmentioning

confidence: 99%

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Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Tan

Wang

et al. 2019

J Am Ceram Soc

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Single crystals of yttria‐stabilized zirconia (YSZ) doped with various concentrations of Sm2O3 were synthesized by the optical floating zone method, and their structure and spectroscopic properties characterized using powder X‐ray diffraction (XRD), optical absorption, and luminescence measurements. XRD showed that the cubic phase of ZrO2 was stabilized by addition of Y2O3 and a series of absorption peaks characteristic of Sm3+ was detected by UV‐visible absorption spectroscopy. Three phenomenological J‐O oscillator strength parameters Ωt (t = 2, 4, 6) were calculated to evaluate the local structure and bonding in the vicinity of the Sm3+ for the 0.75 mol% Sm2O3: YSZ sample. These were in order of Ω2 < Ω4 < Ω6 with values of Ω2 = 5.46 × 10−20 cm2, Ω4 = 10.70 × 10−20 cm2, and Ω6 = 12.67 × 10−20 cm2, and indicate a relatively high symmetry and low covalent character for the Sm‐O bond at the Sm3+ sites in the YSZ matrix. Photoluminescence spectra recorded under an excitation of 404 nm showed four emission bands centered at 571 nm, 621 nm, 652 nm, and 716 nm corresponding to the transitions 4G5/2→6Hj (j = 5/2, 7/2, 9/2, 11/2). The transition probability, lifetime, and branching ratio obtained from the emission spectrum of the 0.75 mol% Sm2O3: YSZ crystal showed that YSZ is a potential host for Sm3+ to achieve a reddish‐orange laser output, and the Sm3+‐modified YSZ crystals have a possible use in reddish‐orange laser and lighting devices.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Tan

Wang

et al. 2019

J Am Ceram Soc

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“…The average decay time of the sample is then defined by (6) [49]: The fluorescence lifetimes for the 4 G5/2 → 6 H7/2 emission peak from YGG: Sm 3+ and YAG: Sm 3+ single crystals were then calculated to be 0.705 ms and 0.466 ms, respectively (Table 4). Thus, the fluorescence lifetime of YGG: Sm 3+ is not only longer than that of the YAG: Sm 3+ crystal, but it is also longer than those of CaGdAlO4: Sm 3+ (0.69 ms) and NaGd(MnO4): Sm 3+ crystals (0.5574 ms) [18,52,53]; this is probably the consequence of the greater intensity of its 4 G5/2 → 6 H7/2 emission peak, which allows for a greater participation of Sm 3+ ions in this transition and results in a longer fluorescence lifetime [54,55].…”

Section: Fluorescence Lifetime Measurementsmentioning

confidence: 93%

Highly Efficient Orange-Red Emission in Sm3+-Doped Yttrium Gallium Garnet Single Crystal

Zhang,

Zhu,

et al. 2023

Crystals

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High-quality single crystals with empirical composition Y2.96Sm0.04Ga5O12 (YGG: Sm3+) were successfully prepared by the optical floating zone method for the first time and compared with related single crystals of Y2.96Sm0.04Al5O12 (YAG: Sm3+). With both crystals, XRD showed that Sm3+ entered the cubic-phase structure. Optical absorption spectra produced a series of peaks from Sm3+ in the 250 nm to 550 nm range, and photoluminescence excitation (PLE) spectra detected at 613 nm showed strong excitation peaks at 407 nm and 468 nm. A strong emission peak at 611 nm (orange-red light) was observed in the photoluminescence (PL) spectra under excitations at both 407 and 468 nm, respectively, but it was much brighter under excitation at 407 nm. Furthermore, with both emission spectra, the peaks from the YGG: Sm3+ crystal were significantly more intense than those from the YAG: Sm3+ crystal, and both experienced a blue shift. In addition, under excitation at 407 nm, the color purity of the emitted orange-red light of YGG: Sm3+ was higher than that of the YAG: Sm3+ crystal, and the fluorescence lifetime for the 4G5/2 → 6H7/2 transition of YGG: Sm3+ was longer than that of the YAG: Sm3+ crystal. The optical properties of the YGG: Sm3+ crystal are better than those of the YAG: Sm3+ crystal.

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Spark plasma sintering of Sm3+ doped Y2O3 transparent ceramics for visible light lasers

Wang

et al. 2017

Ceramics International

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Polarized spectral properties of Sm:CaGdAlO 4 crystal for reddish-orange laser

Cited by 16 publications

References 22 publications

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Preparation and optical properties of samaria‐doped yttria‐stabilized zirconia single crystals

Highly Efficient Orange-Red Emission in Sm3+-Doped Yttrium Gallium Garnet Single Crystal

Spark plasma sintering of Sm3+ doped Y2O3 transparent ceramics for visible light lasers

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