Fluorescence of Nd3+ optical centers close to cubic symmetry in a calcium fluoride crystal co-doped with Na+

Vinogradova, E.; Dolgov, L.; Konyushkin, V. A.; Orlovskaya, E.O.; Vagapova, E.A.; Treshchalov, Alexey; Peet, V.; Hizhnyakov, V.; Orlovskii, Yu.V.

doi:10.1016/j.jlumin.2021.117988

Cited by 7 publications

(1 citation statement)

References 21 publications

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“…Oxyfluoride vitroceramics include a vitreous matrix typically made of SiO 2 (formation glasses) and crystallized phases such as fluoride type MF 2 (M = Ca, Cd, Pb, Zn) or LaF 3 . Extensive research has been conducted on the spectroscopic properties of trivalent neodymium (Nd 3+ ) ions in different host crystalline and amorphous matrices [8–23].…”

Section: Introductionmentioning

confidence: 99%

Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Boubekri,

Fartas,

Diaf

et al. 2024

Luminescence

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The aim of this research is to investigate novel compositions of oxyfluoride glasses doped with Neodymium (Nd3+) rare earth ions in the visible spectrum. This area has not been extensively studied in the existing literature, so it is vital to understand the favorable photoluminescence characteristics within this part of the electromagnetic spectrum. Therefore, we synthesized and characterized SiO2‐PbO‐PbF2 (SPF) doped with 1% neodymium (Nd3+) ions glasses. Spectroscopic analyses, based on Judd–Ofelt theory, were conducted on absorption spectra. These analyses enabled to determine absorption cross‐sections, transition probabilities, and Judd–Ofelt intensity parameters Ω2, Ω4, and Ω6 for the different transition. Additionally, we calculated various radiative properties, such as branching ratios, integrated cross‐sections, radiative lifetimes, emission cross‐section, optical gain, and the multicolor behavior (chromaticity coordinates, CIE diagram) under different excitation wavelengths. The results suggest promising prospects for using these oxyfluoride silicate glasses doped with Nd3+ as a fluorophore, potentially for lasing materials around 630‐nm emission and in other photonic applications.

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Section: Introductionmentioning

confidence: 99%

Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Boubekri,

Fartas,

Diaf

et al. 2024

Luminescence

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Bulk Growth, Thermal, and Polarized Spectral Characters of Nd³⁺‐Doped Ca₃(BO₃)₂ Single Crystals

Yu,

Qi,

Liu

et al. 2024

Cryst. Res. Technol.

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The growth, ion concentrations, powder X‐ray diffraction, thermal properties, and optical spectroscopy of Nd3⁺‐doped Ca₃(BO₃)₂ single crystals are investigated. The Nd3+‐doped Ca₃(BO₃)₂ single crystals with 1.97 at.% Nd3⁺ are successfully grown using the Czochralski (Cz) technique. To address the chemical valence imbalance between Nd3⁺ and Ca2⁺ in the Ca₃(BO₃)₂ crystals, the Na⁺ ions are introduced. The concentrations of Nd3⁺ and Na⁺ ions in the as‐grown crystals are measured using inductively coupled plasma atomic emission spectroscopy (ICP‐AES), yielding concentrations of 1.97 at% (N0 = 1.55 × 1020 cm−3), 1.94 at% (N0 = 1.52 × 1020 cm−3), respectively. The thermal behavior of the Nd3⁺‐doped Ca3(BO3)2 crystals, including thermal expansion coefficients, specific heat, and thermogravimetric and differential thermal analysis (TG‐DTA), is systematically investigated. At room temperature, the polarized absorption spectra, polarized fluorescence spectra, and fluorescence decay lifetimes are measured. Spectral parameters, including polarized absorption and stimulated emission cross‐sections, intensity parameters, transition probabilities, radiative lifetime, and branching ratios are determined using the Judd‐Ofelt (J‐O) theory. The results indicate that Nd3+‐doped Ca3(BO3)2 crystals are promising materials for near‐infrared lasers, offering advantages such as rapid growth, large size, high specific heat, strong emission, and environmental stability.

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Effects of temperature on factors relevant to laser operation near 1.6 µm wavelength in resonantly (in-band) pumped CaF2:Er and SrF2:Er crystals: a comparative study

et al. 2023

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Single crystals of CaF2 and SrF2 containing Er3+ ions with concentrations between 0.01 and 0.6 at% respectively, were grown using the temperature gradient technique (TGT). Absorption spectra related to the 4I15/2 → 4I13/2 transition of Er3+ ions were measured at 5 K to investigate the properties of the crystal field splitting of the 4I13/2 multiplet, and at several temperatures in the region 80 K – 300 K to determine the effect of temperature on the spectral bands. The 4I13/2 → 4I15/2 luminescence spectra were recorded within the same temperature range as for absorption measurement. The analysis of absorption and luminescence spectra provides an in-depth knowledge on the effect of temperature on the factors that govern the efficiency of resonant optical pumping near 1.6 µm and the resulting lasing ability of Er3+ ions imbedded in CaF2 and SrF2 hosts.

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Fluorescence of Nd3+ optical centers close to cubic symmetry in a calcium fluoride crystal co-doped with Na+

Cited by 7 publications

References 21 publications

Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Bulk Growth, Thermal, and Polarized Spectral Characters of Nd³⁺‐Doped Ca₃(BO₃)₂ Single Crystals

Effects of temperature on factors relevant to laser operation near 1.6 µm wavelength in resonantly (in-band) pumped CaF2:Er and SrF2:Er crystals: a comparative study

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Fluorescence of Nd3+ optical centers close to cubic symmetry in a calcium fluoride crystal co-doped with Na+

Cited by 7 publications

References 21 publications

Optical properties investigation and multicolor behavior of neodymium (Nd3+)‐doped oxyfluoride silicate glasses SiO2‐PbO‐PbF2

Optical properties investigation and multicolor behavior of neodymium (Nd3+)‐doped oxyfluoride silicate glasses SiO2‐PbO‐PbF2

Bulk Growth, Thermal, and Polarized Spectral Characters of Nd3+‐Doped Ca3(BO3)2 Single Crystals

Effects of temperature on factors relevant to laser operation near 1.6 µm wavelength in resonantly (in-band) pumped CaF2:Er and SrF2:Er crystals: a comparative study

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Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Optical properties investigation and multicolor behavior of neodymium (Nd³⁺)‐doped oxyfluoride silicate glasses SiO₂‐PbO‐PbF₂

Bulk Growth, Thermal, and Polarized Spectral Characters of Nd³⁺‐Doped Ca₃(BO₃)₂ Single Crystals