Polarized spectroscopic properties and 1046 nm laser operation of Yb3+:Ca3TaGa3Si2O14 crystal

Han, Bin; Xiao, Hanyu; Chen, Yujin; Huang, Jianhua; Gong, Xinghong; Yan, Lin; Luo, Zundu; Huang, Yidong

doi:10.1016/j.jlumin.2022.119219

Cited by 8 publications

(1 citation statement)

References 38 publications

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“…The refined results unambiguously confirm this conclusion. The reliability coefficients, R p = 4.83% and R wp = 6.25%, indicate that the crystal exhibits a monoclinic phase (M-type), with Ta 3+ coordinated by six O 2− ions, forming a distorted octahedron [ 38 ]. The crystal structure, drawn in Fig.…”

Section: Resultsmentioning

confidence: 99%

Upconversion luminescence and optical thermometry behaviors of Yb3+ and Ho3+ co-doped GYTO crystal

Zhang,

Ding,

Wang

et al. 2023

Front. Optoelectron.

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Optical thermometry based on the upconversion (UC) luminescence intensity ratio (LIR) has attracted considerable attention because of its feasibility for achievement of accurate non-contact temperature measurement. Compared with traditional UC phosphors, optical thermometry based on UC single crystals can achieve faster response and higher sensitivity due to the stability and high thermal conductivity of the single crystals. In this study, a high-quality 5 at% Yb3+ and 1 at% Ho3+ co-doped Gd0.74Y0.2TaO4 single crystal was grown by the Czochralski (Cz) method, and the structure of the as-grown crystal was characterized. Importantly, the UC luminescent properties and optical thermometry behaviors of this crystal were revealed. Under 980 nm wavelength excitation, green and red UC luminescence lines at 550 and 650 nm and corresponding to the 5F4/5S2 → 5I8 and 5F5 → 5I8 transitions of Ho3+, respectively, were observed. The green and red UC emissions involved a two-photon mechanism, as evidenced by the analysis of power-dependent UC emission spectra. The temperature-dependent UC emission spectra were measured in the temperature range of 330–660 K to assess the optical temperature sensing behavior. At 660 K, the maximum relative sensing sensitivity (Sr) was determined to be 0.0037 K−1. These results highlight the significant potential of Yb,Ho:GYTO single crystal for optical temperature sensors. Graphical abstract

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Section: Resultsmentioning

confidence: 99%