Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO<sub>3</sub> in the 300–3000 nm Wavelength Range

Dai, Li; Wang, Yuning; Chen, Ruirun; Yang, Shi‐Yao; Han, Xianbo; Liu, Chunrui; Shao, Youlin

doi:10.1002/crat.201900176

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…It was also demonstrated that doping other types of impurity ions can improve the resistance ability of LiNbO 3 crystals for optical damage [9][10][11][12][13][14][15]. A set of optical damage resistance dopants, including In, Mg, Zn, Sc and Hf, were doped into the crystal for such a purpose [16]. Among them, Sc 3+ ion impurity is the most effective due to the lower threshold concentration, which was reported to be about 3.0 mol%.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Xu¹,

Chen²

2022

Crystals

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Sc:Ru:Fe:LiNbO3 crystals were grown from congruent melt by using the Czochralski method. A series of LiNbO3 crystals (Li/Nb = 48.6/51.4) with 0.1 wt% RuO2, 0.06 wt% Fe2O3 and various concentrations of Sc203 were prepared. RF1 and RF4 refers to the samples containing 0 mol% Sc203 and 3 mol% Sc203, respectively. The photorefractive properties of RF4 were measured by Kr+ laser (λ = 476 nm blue light): ηs = 75.7%, τw = 11 s, M/# = 19.52, S = 2.85 cmJ−1, Γ = 31.8 cm−1 and ∆nmax = 6.66 × 10−5. The photorefractive properties of five systems (ηs, M/#, S, Γ and ∆nmax) under 476 nm wavelength from RF1 to RF4 continually increased the response time, while τw was continually shortened. Comparing the photorefractive properties of Sc (1 mol%):Ru (0.1 wt%):Fe (0.06 wt%): LiNbO3 measured by Kr+ laser (λ = 476 nm blue light) with Sc (1 mol%):Fe (0.06 wt%):LiNbO3 measured by He-Ne laser (633 nm red light), ηs increased by a factor of 1.9, Vw (response rate) increased by a factor of 13.9, M/# increased by a factor of 1.8 and S increased by a factor of 32. The ∆nmax improved by a factor of 1.4. A strong blue photorefraction was created by the two-center effect and the remarkable characteristic of being in phase between the two gratings recorded in shallow and deep trap centers. The photorefractive properties (ηS, τw, M/#, S, ∆nmax) were increased with an increase in Sc3+ ion concentration. Damage-resistant dopants such as Sc3+ ions were no longer resistant to damage, but they enhanced the photorefractive properties at the 476 nm wavelength. The experimental results clearly show that Sc-doped two-center Ru:Fe:LiNbO3 crystal is a promising candidate blue photorefraction material for volume holographic storage. Sc-doped LiNbO3 crystal can significantly enhance the blue photorefractive properties according to the experimental parameters. Therefore, the Sc:Ru:Fe:LiNbO3 crystal has better photorefractive properties than the Ru:Fe:LiNbO3 crystal.

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Section: Introductionmentioning

confidence: 99%

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Xu¹,

Chen²

2022

Crystals

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Up-conversion luminescence and defect structures in Sc: Dy: LiNbO3 crystals affected by Sc3+ concentration

et al. 2023

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Magnetism and optical properties of LiNbO3 doped with (Fe,Ni,Ga): First-principles calculations

Lin

Huang

et al. 2021

Journal of Applied Physics

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Based on the first principles of the generalized gradient approximation method, the magnetic and optical properties of Fe-, Ni-doped and (Fe,Ni) co-doped LiNbO3 crystals are studied. The results show that the mono-doped LiNbO3 crystals contain magnetic atoms (Fe,Ni) leading to spin polarization, and (Fe,Ni) co-doped LiNbO3 crystals tend to the ferromagnetic state with △EFM of −143 meV. The total magnetic moment of the (Fe,Ni) co-doped LiNbO3 crystal is 5.97 μB, and the local magnetic moments of Fe and Ni are 2.99 μB and 0.93 μB, respectively. It is interesting that the introduction of the Ga atom makes the ferromagnetic state (△EFM of −285.4 meV) of the (Fe,Ni) co-doped LiNbO3 system more stable than the anti-ferromagnetic state. Although Ga atoms do not contribute to the magnetic moment, the (Fe,Ni,Ga) co-doped LiNbO3 is more conducive to the spin-polarized state. In addition, with the introduction of Fe, Ni, and Ga atoms, the visible region absorption changes significantly. Non-volatile holographic storage can be achieved by (Fe,Ni) co-doped LiNbO3, thus increasing the absorption of the visible light range. In summary, this research provides theoretical guidance for the application of LiNbO3 crystals in spintronic devices.

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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO₃ in the 300–3000 nm Wavelength Range

Cited by 6 publications

References 21 publications

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Up-conversion luminescence and defect structures in Sc: Dy: LiNbO3 crystals affected by Sc3+ concentration

Magnetism and optical properties of LiNbO3 doped with (Fe,Ni,Ga): First-principles calculations

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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO3 in the 300–3000 nm Wavelength Range

Cited by 6 publications

References 21 publications

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Optimization of Blue Photorefractive Properties and Exponential Gain of Photorefraction in Sc-Doped Ru:Fe:LiNbO3 Crystals

Up-conversion luminescence and defect structures in Sc: Dy: LiNbO3 crystals affected by Sc3+ concentration

Magnetism and optical properties of LiNbO3 doped with (Fe,Ni,Ga): First-principles calculations

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Dopant Occupancy and UV–Vis–NIR Spectroscopy of Sc:Yb:Tm:LiNbO₃ in the 300–3000 nm Wavelength Range