Infrared spectroscopic characterization of Na5Lu9F32 single crystals doped with various Er3+ concentrations

Tang, Qingyang; Xia, Haiping; Sheng, Qiguo; He, Shinan; Zhang, Jianli; Chen, Baojiu

doi:10.1080/09500340.2017.1349197

Cited by 7 publications

(1 citation statement)

References 21 publications

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“…As the cross-section formula involves at the same time the branching ratio, the radiative lifetime, the emission intensity, and especially the wavelength to the fifth power, there has been a rebalancing of the respective intensities of the different emission bands with relative cross-sections of order of magnitude 10 À20 cm 2 . Also, the eye-safe emission cross-section had the same order of magnitude with a maximum of 0.5 Â 10 À20 cm 2 at $1554 nm [29][30][31].…”

Section: ω6mentioning

confidence: 81%

Luminescence properties of CdF₂ single crystals co‐doped with Er³⁺ and Y³⁺ ions

Boubekri,

Fartas,

Diaf

et al. 2024

Luminescence

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The luminescence properties of erbium and yttrium co‐doped cadmium difluoride with three different concentrations of yttrium were investigated. First, we synthesized single crystal samples with good optical quality using the Bridgman technique. From the optical absorption spectra, recorded at room temperature, both in the ultraviolet–visible and infrared spectral ranges, Judd–Ofelt analysis was performed based on yttrium concentrations to predict the radiative properties of Er3+ luminescent ions. For the 10% optimum concentration of yttrium, a detailed photoluminescence investigation was carried out. We mainly explored green, red, and near‐infrared fluorescence under different excitation wavelengths and presented their highlight spectroscopic characteristics. The desired transitions had relatively high emission cross‐sections both under visible and near‐infrared excitation. Optical gain followed a similar trend. Furthermore, the dynamic fluorescence study showed a significant increase in the measured lifetime under an 800 nm infrared excitation. The upconversion process under an 800 nm excitation produced quantum efficiency greater than 100% due to the contribution of more than one energy transfer mechanism.

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Section: ω6mentioning

confidence: 81%