Phase transition of LaAlO3 nanocrystal enhanced optical linear&amp; third order nonlinear and dielectric properties of glasses

Liu, Zhenmin; Chen, Qiuling

doi:10.1016/j.jnoncrysol.2022.121965

Cited by 2 publications

(1 citation statement)

References 43 publications

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“…For both GCs the increment is ∼1.6 times greater compared to their parent glasses. It has been evidenced from the literature that the nonlinear contribution from a GCs depends on the symmetry of the crystals, percentage of crystallinity, crystallite size, , and bandgap of the matrix. However, in the present case the effect of crystallite size and shape can be neglected for NLO property increment, as in both the GCs increments in NLO coefficient are the same.…”

Section: Resultsmentioning

confidence: 99%

Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Patra,

Gangareddy,

Soma

et al. 2024

Crystal Growth & Design

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Rare-earth (RE)-doped transparent tellurite glass-ceramics (GCs) embedded with "anti-glass" crystallites not only exhibit superior emission properties but can also be a potential medium for nonlinear optical (NLO) applications. Both of these properties depend on their transparency. Keeping this in view, we aimed to elucidate the effect of Nd 3+ ion concentration (0.5−2 mol %) on the crystallization mechanism of lanthanum-gadolinium-titanium-tellurite (LGTT) glass in retaining the transparency and NLO properties. XRD reveals the precipitation of (La/Nd) 2 T 6 O 15 and Gd 2 Te 6 O 15 "anti-glass" crystallites upon ceramization of these glasses. Particle-size-dependent DSC confirms competition between the growth of these two crystalline phases at higher Nd 3+ concentration that aids in controlling crystal growth. The FE-SEM microstructures demonstrate a change in morphology of the crystallites from rectangular (1.5 μm) to spherical (120 nm) with increasing Nd 2 O 3 concentration from 0.5 to 2 mol % and thereby retaining optical transparency (12% → 55%) in GCs. Photoluminescence spectra reveal a maximum emission intensity for 1 mol % of Nd 2 O 3 -doped glass; however, the lifetime is maximum (156 μs) for 0.5% Nd 2 O 3 doping. This study also discloses an enhancement of third-order NLO properties as a function of Nd 2 O 3 concentration in LGTT glasses under femtosecond laser excitation at 800−1200 nm due to resonant nonlinearity. Emission intensity and NLO responses are increased in the GCs compared to their parent glasses. A maximum nonlinear absorption coefficient (α 2 ) of 4.986 × 10 −10 m/W and nonlinear refractive index (n 2 ) of 3.115× 10 −17 m 2 /W has been obtained from LGTT-Nd2(GC-36h) GCs at 800 nm. GCs exhibits an optical limiting threshold of 4.14 mJ/cm 2 , suggesting its great potential for intense radiation shielding.

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Section: Resultsmentioning

confidence: 99%

Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Patra,

Gangareddy,

Soma

et al. 2024

Crystal Growth & Design

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Toughening mechanism of barium titanosilicate glass-ceramics

Sun,

Du,

Zhang

et al. 2024

Materials & Design

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Phase transition of LaAlO3 nanocrystal enhanced optical linear& third order nonlinear and dielectric properties of glasses

Cited by 2 publications

References 43 publications

Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Toughening mechanism of barium titanosilicate glass-ceramics

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Phase transition of LaAlO3 nanocrystal enhanced optical linear& third order nonlinear and dielectric properties of glasses

Cited by 2 publications

References 43 publications

Effect of Nd2O3 Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Effect of Nd2O3 Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Toughening mechanism of barium titanosilicate glass-ceramics

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Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics

Effect of Nd₂O₃ Concentration on Crystallization Mechanism and Third-Order Optical Nonlinearity of Lanthanide-Titanium-Tellurite Glass and Glass-Ceramics