Ultra-broad absorption band of Dy3+ doped Gd3Sc2Al3O12 garnet crystal at around 450nm: A potential crystal for InGaN LD pumped all-solid-state yellow lasers

CrystEngComm ◽  
2021 ◽  
Author(s):  
Shoujun Ding ◽  
Hao Ren ◽  
Hongyuan Li ◽  
Wenpeng Liu ◽  
Qingli Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Absorption Band ◽  
Single Crystal ◽  
Czochralski Method ◽  
Spectroscopic Properties ◽  
Garnet Crystal ◽  
High Quality ◽  
Broad Absorption ◽  
Broad Absorption Band ◽  
First Time

In this work, a high-quality 2at% Dy3+ doped Gd3Sc2Al3O12 (Dy:GSAG) single crystal was grown successfully by the Czochralski method for the first time. Spectroscopic properties of the crystal were investigated...

Study of Crystal Yb3+:Ca3Y2(BO3)4

2004 ◽  
Vol 19 (4) ◽  
pp. 1203-1207 ◽  
Author(s):  
Yan Wang ◽  
Chaoyang Tu ◽  
Changcang Huang ◽  
Zhenyu You
Keyword(s):  
Absorption Spectrum ◽  
Absorption Band ◽  
Emission Spectra ◽  
Czochralski Method ◽  
X Ray Diffraction ◽  
Broad Absorption ◽  
Broad Absorption Band ◽  
Orthorhombic System ◽  
X Ray ◽  
Broad Emission

Yb3+-doped single-crystal Ca3Y2(BO3)4 with dimension φ20 × 55 mm was grown by the Czochralski method. The structure of it was determined by x-ray diffraction. It belongs to the orthorhombic system, space group Pnma, with the following parameters: a= 7.1690(4), b = 15.4758(8), c = 8.5587(6) Å, V = 949.55(10)Å3, Mr = 537.51, Z = 2, Dc = 3.8 g/cm3, (MoKa) = 0.71073 Å, F(000) = 508, μ = 6.927 mm-1, final R = 0.0670, and wR = 0.1542 for 2975 independent reflections. The structure of Yb:Ca3Y2(BO3)4 is made up of three set of M-oxygen distorted polyhedrons, and three set of BO3 planar triangles. Ca2+ and Y3+ ions occupy three M sites statistically. Yb3+ ions substitute Y3+ ions to enter these three lattices. The adsorption and emission spectra were measured. It exhibits a broad absorption band ranging from 850 to 1000 nm in the absorption spectrum, which is well matched with the emission wavelength of a laser diode. A broad emission spectrum ranging from 927.95 to 1102.7 nm was observed under the excitation of 895 nm.

Single crystal growth and properties investigation of Dy3+ and Tb3+ co-doped Gd3Sc2Al3O12 (GSAG): multi-applications for GaN blue LD pumped all-solid-state yellow lasers and UV or blue lights chip excited solid-state lightings

2021 ◽  
Author(s):  
Shoujun Ding ◽  
Hao Ren ◽  
Yong Zou ◽  
Wenpeng Liu ◽  
Qingli Zhang
Keyword(s):  
Crystal Structure ◽  
Crystal Growth ◽  
Solid State ◽  
Single Crystal ◽  
Crystal Size ◽  
Czochralski Method ◽  
Single Crystal Growth ◽  
High Quality ◽  
Co Doped ◽  
Effective Segregation

A high-quality Dy3+ and Tb3+ co-doped GSAG single crystal with crystal size of ϕ25×25 mm3 has been grown successfully with the traditional Czochralski method. The crystal structure and effective segregation...

Growth, thermal, and spectroscopic properties of a 2.911 μm Yb,Ho:GdYTaO4 laser crystal

CrystEngComm ◽  
2014 ◽  
Vol 16 (48) ◽  
pp. 11007-11012 ◽  
Author(s):  
Renqin Dou ◽  
Qingli Zhang ◽  
Dunlu Sun ◽  
Jianqiao Luo ◽  
Huajun Yang ◽  
...  
Keyword(s):  
Laser Crystal ◽  
Czochralski Method ◽  
Spectroscopic Properties ◽  
First Time

A promising 2.911 μm Yb,Ho:GdYTaO4 laser crystal was grown successfully by the Czochralski method for the first time.

Accuracy of measurements of the band maximum shift for a broad absorption band

1973 ◽  
Vol 19 (5) ◽  
pp. 1538-1538
Author(s):  
A. I. Sidorova ◽  
T. V. Sukhanova ◽  
E. M. Ushakova
Keyword(s):  
Absorption Band ◽  
Broad Absorption ◽  
Broad Absorption Band ◽  
Band Maximum ◽  
Accuracy Of Measurements

scholarly journals Single-crystal neutron and X-ray diffraction study of garnet-type solid-state electrolyte Li6La3ZrTaO12: an in situ temperature-dependence investigation (2.5 ≤ T ≤ 873 K)

2021 ◽  
Vol 77 (1) ◽  
pp. 123-130
Author(s):  
Günther J. Redhammer ◽  
Martin Meven ◽  
Steffen Ganschow ◽  
Gerold Tippelt ◽  
Daniel Rettenwander
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Czochralski Method ◽  
Atomic Displacement ◽  
X Ray Diffraction ◽  
Solid State Electrolyte ◽  
Cubic Symmetry ◽  
X Ray ◽  
Site Occupation ◽  
Atomic Displacement Parameters

Large single crystals of garnet-type Li6La3ZrTaO12 (LLZTO) were grown by the Czochralski method and analysed using neutron diffraction between 2.5 and 873 K in order to fully characterize the Li atom distribution, and possible Li ion mobility in this class of potential candidates for solid-state electrolyte battery material. LLZTO retains its cubic symmetry (space group Ia 3 d) over the complete temperature range. When compared to other sites, the octahedral sites behave as the most rigid unit and show the smallest increase in atomic displacement parameters and bond length. The La and Li sites show similar thermal expansion in their bond lengths with temperature, and the anisotropic and equivalent atomic displacement parameters exhibit a distinctly larger increase at temperatures above 400 K. Detailed inspection of nuclear densities at the Li1 site reveal a small but significant displacement from the 24d position to the typical 96h position, which cannot, however, be resolved from the single-crystal X-ray diffraction data. The site occupation of LiI ions on Li1 and Li2 sites remains constant, so there is no change in site occupation with temperature.

Broad absorption band solar selective absorber analyzed by admittance loci

2016 ◽  
Author(s):  
Wei-Bo Liao ◽  
Ya-Chen Chang ◽  
Cheng-Chung Lee ◽  
Yu-Sheng Chen ◽  
Chien-Cheng Kuo
Keyword(s):  
Absorption Band ◽  
Broad Absorption ◽  
Broad Absorption Band ◽  
Admittance Loci

Optical and Scintillation Properties of Eu-Doped Calcium Orthoborate

2012 ◽  
Vol 508 ◽  
pp. 235-239 ◽  
Author(s):  
Yutaka Fujimoto ◽  
Yoshisuke Futami ◽  
Takayuki Yanagida ◽  
Shunsuke Kurosawa ◽  
N. Kawaguchi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Absorption Band ◽  
Radio Frequency ◽  
Single Crystals ◽  
Heating System ◽  
Radio Frequency Heating ◽  
Broad Absorption ◽  
Broad Absorption Band ◽  
Decay Times ◽  
Frequency Heating

Single Crystals of Eu-Doped Calcium Orthoborate Have Been Grown by Micro-Pulling (μ-PD) Technique with Radio Frequency Heating System, and its Transmittance, Photoluminescence and Radiation Responses Were Investigated. In Transmittance Spectra, Eu-Doped Crystal Showed Broad Absorption Band around 200-450 nm, which Is due to the Complex of Charge Transfer (CT) Transition and 4f-4f Transition of Eu3+. Intense Eu2+5f-4f and Eu3+4f-4f Emission Peaks Were Observed when Excited to 265 nm and 385 nm, and the Calculated Decay Times Were 230 ns and 1.5 ms, Respectively.241Am 5.5 Mev α-Ray Excited Radioluminescence Spectra Indicated both Eu2+5f-4f and EuSuperscript text3+ 4f-4f Emission Peaks.

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