Ce: YAG Crystals
Ce:YAG crystal is an important kind of scintillation crystals. Compared with other inorganic scintillators, Ce:YAG crystal holds a high luminous efficiency and a wide light pulse. Especially, its emission peak is 550nm, which well matched with the sensitivity detect wavelength of the silicon photodiode detection. Thus, it is very suitable for the scintillators of the equipments that taken the photodiode as detectors and the scintillators to detect the light charged particles. At this time, a high coupling efficiency can be achieved. Furthermore, Ce:YAG can also be commonly used as a phosphor in cathode ray tubes and white light-emitting diodes. Density: 4.57 g/cm3 Hardness by Mohs: 8.5 Index of refraction: 1.82 Melting point: 1970°C Thermal expansion: 0.8-0.9 x 10-5/K Crystal structure: cubic Advantage of Nd YAG Rod: Higher coupling efficiency with the silicon photodiode detection No afterglow Short decay time Stable physical and chemical property
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Overview
Specifications
| Parameter | Value |
|---|---|
| Chemical formula | Y₃₋₃ₓCe₃ₓAl₅O₁₂ |
| The crystal structure | Cubic crystal system |
| Lattice parameters | 12.01 Å |
| Melting point | 1970 ℃ |
| The density | 4.57 g/cm³ |
| The refractive index | 1.82 |
| Coefficient of thermal expansion [<111>；0–250℃] | 7.8×10⁻⁶ |
| Thermal conductivity [20℃] | 14 W/m/K |
| Thermal conductivity [100℃] | 10.5 W/m/K |
| Mohs hardness | 8.5 |
| Light output | 8000 ph/Mev |
| Maximum emission wavelength | 550 nm |
| Decay time | 70 ns |
| Energy resolution [@662KeV] | 6–7 % |
| The length of the radiation | 3.5 cm |
| afterglow [at 6ms] | <0.005 % |
Key Features
Datasheet
Supplier Information
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Nd Dopant Concentration: 0.5─1.2 atm % Orientation: ±5° Flatness [632.8nm]: <λ/10 @ 632.8 nm
Wavelength:1064 nm; chemical formula:Y3Al5O12:Nd; melting point:1970°C; density:4.5g/cm3; orientation:<111>±5°; flatness:<λ/10 @632.8 nm; parallelism:≤10"; perpendicularity:≤5′; surface finish:10/5. Nd:YAG is among the earliest and best-known laser crystals. Its basic properties support near-/far-infrared solid-state lasers and their frequency doubling and tripling, with broad research, medical, industrial, and military use.
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Nd:YVO4 Laser Crystals Yagcrystal
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Tm：YAP Laser Crystals Yagcrystal
Doping concentration: Tm:1.0 ~ 4.0 at%. Wavefront distortion: ≤0.125λ/25mm@632.8nm. Crystal rod dimensions: available to customer requirements. Dimensional tolerance: diameter:+0.00/-0.05mm, length:± 0.5mm. Barrel processing: fine grinding or polishing. End-face parallelism:≤10". End-face perpendicularity to rod axis:≤5′. End-face flatness:≤λ/8@632.8nm. Surface finish:gradeⅠ. Edge bevel:0.2±0.05mm. Tm:YAP is an important diode-pumped crystal for2μm laser emission. Although its physical and chemical properties resemble Tm:YAG, its795nm pump absorption band better matches commonly used high-power AlGaAs diodes, and its pump absorption bandwidth is4nm wider than Tm:YAG, giving higher efficiency and direct linearly polarized output. Tm:YAP has important medical-laser and military applications. Crystal structure: orthorhombic. Lattice constants:a = 0.5138 nm, b = 0.5274 nm/c = 0.7308 nm (space group Pbnm). Melting point:1870 °C. Density:5.35 g/cm³. Mohs hardness:8.5. Specific heat:400 J/(kg ·K). Thermal conductivity:11W/(m·K). Refractive indices:n_ₐ=1.91, n__b=1.92, n__c=1.94.
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