Co:spinel (cobalt-doped magnesium aluminate spinel)
Keywords:
Scintillation Crystals
- Product Introduction
- Key advantages
- Application areas
- Product Features
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- Commodity name: Co:spinel (cobalt-doped magnesium aluminate spinel)
Co:spinel crystal, also known as cobalt-doped magnesium aluminate spinel, with the chemical formula Co²⁺:MgAl₂O₄, is a Q‑switching crystal with excellent overall performance.
Product Introduction
Co:spinel crystals, also known as cobalt-doped magnesium aluminate spinel, with the chemical formula Co²⁺:MgAl₂O₄, are a highly versatile and excellent Q‑switching material. Cobalt spinel serves as a saturable absorber and functions as a passive Q‑switch in solid-state lasers operating at the eye‑safe wavelength of 1.5 μm. Cobalt‑doped magnesium aluminate spinel (Co:spinel) can generate short nanosecond pulses with high peak power near the eye‑safe 1.5 μm wavelength, making it ideally suited for remote‑sensing applications. It offers advantages such as a broad absorption band, long operational lifetime, uniform cobalt distribution, and a wide absorption bandwidth.
Main advantages
- Low wavelength range
- Rare Excitation Absorption
-Q-switch high constant
- Absorption section width
- Long service life
- Cobalt is uniformly distributed.
- Personnel SafetyApplication areas
- Laser technology, optoelectronic devices, materials science
- Passive Q-switch for Er:glass lasers at 1.54 μm
- Radar and Ranging
- Medical applications
- Military confrontation
- DroneProduct Features
Material Properties Chemical formula Co²⁺: MgAl₂O₄ Lattice structure Cubic crystal system Lattice parameters 8.07 Å Density 3.62 g/cm³ Mohs hardness 8.2Mohs Extinction ratio 25db
Co²⁺ doping concentration 0.01~0.3 at% Coefficient of thermal expansion 5.9 × 10⁻⁶/°C @25°C Lattice orientation [100] or [111] < ±0.5° Spectral range 1200-1600nm Thermal conductivity 0.033 W/(m·K) @25°C Refractive index N=1.6948@1540nm Melting point 2105℃ Product Processing Specifications Effective aperture >90% Dimensional tolerance (W±0.05 mm)×(H±0.05 mm)×(L±0.1 mm) Protective Chamfer ≤0.2×45° Surface finish 20-10 S-D Flatness ≤λ/8@632.8nm Wavefront distortion ≤λ/4@632.8nm Parallelism <30" Perpendicularity ≤15′ Chipped edge <0.1mm Coating Customized to customer specifications -
- Narrow wavelength range
- Rare excitation absorption
- Q-switch high constant
- High-absorption section
- Long service life
- Cobalt is evenly distributed -
- Laser technology, optoelectronic devices, materials science
- Passive Q-switch for Er-doped glass lasers at 1.54 μm
- Radar and Ranging
- Medical applications -
Material Properties Chemical formula Co2+: MgAl2O4 Lattice structure Cubic crystal system Lattice parameters 8.07 Å Density 3.62g/cm3 Mohs Hardness 8.2Mohs Extinction Ratio 25db
Co²⁺ doping concentration 0.01–0.3 at% Coefficient of thermal expansion 5.9 × 10⁻⁶/°C at 25°C Lattice Orientation [100] or [111] ≤ ±0.5° Spectral range 1200-1600nm Thermal conductivity 0.033 W/(m·K) at 25°C Refractive index N = 1.6948 @ 1540 nm Melting point 2105°C Product Processing Metrics Effective Aperture >90% Dimensional Tolerance (W ± 0.05 mm) × (H ± 0.05 mm) × (L ± 0.1 mm) Protective Chamfer ≤0.2 × 45° Surface finish 20-10 S-D Flatness ≤λ/8 @ 632.8 nm Wavefront Distortion ≤λ/4 @ 632.8 nm Parallelism <30" Verticality ≤15′ Chipped edge <0.1 mm Coating Customized to customer specifications
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