Enhancement of 1.35 μm fluorescence lifetime of Cr4+-doped YAG crystal by Ytterbium codoping

Li, D. Z.; Xu, X. D.; Zhang, J.; Zhou, Danhong; Jiang, Di; Wu, Fei; Xia, Chao; Xu, Jun

doi:10.1134/s1054660x11210134

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Evaluation Of the Laser Potentiality1

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2012

2024

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Cited by 2 publications

(1 citation statement)

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“…Since Yb 3+ laser is a quasi three level system, the gain cross section as a function of wavelength should be calculated to evaluate the possible tuning rang of laser output [27]: ,…”

Section: Evaluation Of the Laser Potentialitymentioning

confidence: 99%

Growth, spectroscopic characteristics and laser potential of Yb3+:Ca3La2(BO3)4 crystal

Wang

Sun

et al. 2012

Laser Phys.

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“…Since Yb 3+ laser is a quasi three level system, the gain cross section as a function of wavelength should be calculated to evaluate the possible tuning rang of laser output [27]: ,…”

Section: Evaluation Of the Laser Potentialitymentioning

confidence: 99%

Growth, spectroscopic characteristics and laser potential of Yb3+:Ca3La2(BO3)4 crystal

Wang

Sun

et al. 2012

Laser Phys.

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Defect center–tailored calcium aluminate glasses for photonic applications: Unveiling structure–diffusivity correlation

Chakraborty,

Tah,

Chakraborty

et al. 2024

J Am Ceram Soc.

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Calcium aluminate (CA)‐based glasses have drawn significant attention owing to their pronounced optical, mechanical, and chemical properties for potential applications in IR photonics. Nonetheless, limitations related to their poor glass‐forming ability was addressed by incorporating ZnO that has formed negatively charged [ZnO4]2− and [AlO4]− units, thereby generating the oxygen‐excess defects. These defects impart a detrimental effect on the optical properties. Thus, the present study explores the impact of Li2O, Na2O, K2O, and GeO2 inclusion in the barium–zinc–calcium–aluminate (BZCA) glass to eliminate the oxygen‐excess defects. The molecular structure of the glass matrix was examined by Raman, NMR, and XPS along with the bulk diffusivity of the glasses through MD simulation and are correlated to elucidate the origin of the defect centers. Due to higher diffusivity, Li+ and Na+ cations decrease Al–O hole centers (Al–OHC) and defects but promote F+ (Farbe) centers while K+ ions having lower diffusivity and enhance the defects. Interestingly, all the defect centers are substantially reduced in GeO2‐containing glasses. Further, multivalent Cr ions are doped to optically probe the defect centers through UV–Vis–NIR absorption and photoluminescence spectra. Cr3+ and Cr4+ are found dominant in Li+‐and Na+‐containing glasses due to the presence of less defect, whereas excess converts all Cr3+ into Cr6+ for K+‐containing glasses. Additionally, broadband NIR emission from Cr4+ can functionalize selective glasses for laser and telecommunication applications.

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Enhancement of 1.35 μm fluorescence lifetime of Cr4+-doped YAG crystal by Ytterbium codoping

Cited by 2 publications

References 26 publications

Growth, spectroscopic characteristics and laser potential of Yb3+:Ca3La2(BO3)4 crystal

Growth, spectroscopic characteristics and laser potential of Yb3+:Ca3La2(BO3)4 crystal

Defect center–tailored calcium aluminate glasses for photonic applications: Unveiling structure–diffusivity correlation

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