Growth, spectroscopic, thermal and laser frequency doubling properties of CTGAS crystal

Chen, Hong; Yu, Pingzhang; Zhang, Junqi; Li, Yuzhen; Wang, Yiming; Lv, Shouhao; Guo, Yueyue; Wang, Haoming; Guo, Shiyi; Wang, Zhengping

doi:10.1016/j.optmat.2024.115924

Optical Materials

2024

DOI: 10.1016/j.optmat.2024.115924

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Growth, spectroscopic, thermal and laser frequency doubling properties of CTGAS crystal

Hong Chen,

Pingzhang Yu,

Junqi Zhang

et al.

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Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Hu,

Wang,

Ding

et al. 2024

ACS Appl. Opt. Mater.

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Rare earth ion-doped luminescent materials exhibit significant potential for application in visible solid-state laser and anticounterfeiting applications. The Czochralski method was employed to successfully synthesize high-quality Dy 3+ , Eu 3+ codoped Gd 3 Sc 2 Al 3 O 12 (GSAG), and Gd 2.79 Y 0.21 Sc 2 Al 3 O 12 (GYSAG) single crystals. Comprehensive studies were conducted on their structural and physicochemical properties, luminescence properties, and fluorescence lifetime. The Dy,Eu:GSAG and Dy,Eu:GYSAG crystals both display favorable thermal conductivity values of 5.56 and 5.43 W m −1 K −1 , respectively, along with commendable hardness properties of 7.241 and 7.247 kg/mm 2 . The emission color of the Dy,Eu:G(Y)-SAG crystals can be adjusted from white light under a 355 nm excitation to orange-red light under a 405 nm excitation and bright yellow light under a 450 nm excitation. Additionally, the maximum stimulated emission cross-section for both crystals was calculated under various wavelength laser excitations. The fluorescence lifetime of the crystals at the 4 F 9/2 level (Dy 3+ ) and the 5 D 0 level (Eu 3+ ) was also examined. Notably, the fluorescence quantum efficiencies at the 4 F 9/2 level in Dy,Eu:GSAG and Dy,Eu:GYSAG were measured to be impressive at 91.3 and 92.7%, respectively. The mechanism of resonance energy transfer between Dy 3+ and Eu 3+ was analyzed, indicating promising applications of Dy,Eu:G(Y)SAG in visible solid-state lasers and multimode anticounterfeiting.

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Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Hu,

Wang,

Ding

et al. 2024

ACS Appl. Opt. Mater.

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Growth, spectroscopic, thermal and laser frequency doubling properties of CTGAS crystal

Cited by 1 publication

References 43 publications

Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

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Growth, spectroscopic, thermal and laser frequency doubling properties of CTGAS crystal

Cited by 1 publication

References 43 publications

Trivalent Dy3+ and Eu3+ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Trivalent Dy3+ and Eu3+ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Contact Info

Product

Resources

About

Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications

Trivalent Dy³⁺ and Eu³⁺ Ions Codoped High-Entropy Gadolinium Yttrium Scandium Aluminum Garnet Crystals for Promising Visible Solid-State Laser and Anticounterfeiting Applications