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Barium (Ba) sputtering targets are high-purity materials used in physical vapor deposition (PVD) processes, particularly sputtering, to create thin films on various substrates. Barium targets are typically used in the production of optical coatings, semiconductor devices, and other advanced materials due to their unique properties.
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- Ultra-Wide Transmission Range (DUV to IR): 150 nm to 12–15 μm.
- Low Refractive Index: Minimizes reflection losses without extensive coatings.
- High Radiation Resistance: Suitable for high-radiation environments such as space and nuclear detectors.
- Low Dispersion: Excellent for optical systems requiring minimal chromatic aberration.
- Good Mechanical Properties: Higher fracture toughness compared to other fluoride crystals.
- Low Absorption and High Optical Quality: Especially critical in high-resolution spectroscopic systems.
- Compatibility with High-Energy Lasers: Due to high laser-induced damage threshold.
- Ease of Cleaving and Processing: Supports cost-effective manufacturing.
- Stable Physical and Chemical Properties: Good moisture resistance compared to other fluorides.
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- Ferroelectric behavior with spontaneous polarization
- Extremely high dielectric constant (up to thousands near Curie temperature)
- Piezoelectric and electro-optic effects
- Cubic structure at high temperature, tetragonal below Curie temperature (~120°C)
- Suitable for integration with other perovskite materials
- Atomically smooth surfaces achievable for epitaxy
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- High purity (≥99.99%).
- Outstanding dielectric and ferroelectric properties.
- Suitable for thin-film deposition techniques such as PVD.
- Uniform pellet size for consistent results in industrial and research settings.
- Custom sizes and packaging available.
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- High Dielectric Constant: BaTiO₃ is known for its exceptionally high dielectric constant, making it ideal for capacitors and electro-optic applications.
- Ferroelectric and Piezoelectric Properties: The material exhibits both ferroelectric and piezoelectric behaviors, making it suitable for memory devices, sensors, and actuators.
- Excellent Thermal Stability: BaTiO₃ maintains good thermal stability, ensuring reliable performance in high-temperature environments.
- High Purity and Low Defects: BaTiO₃ sputtering targets are available in high-purity grades (up to 99.999%), ensuring low defect densities in the deposited thin films, which is crucial for advanced electronic applications.
- Custom Composition: Barium Titanate can be tailored with dopants to modify its electrical and thermal properties, optimizing performance for specific applications.
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- Broad Transparency Window: 189 nm to 3500 nm, covering UV, visible, and near-IR
- Wide Phase-Matching Range: Supports multiple nonlinear optical processes
- High Damage Threshold: ~1 GW/cm² for 1064 nm, 10 ns pulses
- High Nonlinear Coefficients: Ensures efficient frequency conversion
- Low Birefringence Walk-Off: Enhances conversion efficiency
- Excellent Thermal and Mechanical Stability: Reliable under high-power laser operations
- Chemical Stability: Resistant to atmospheric moisture under normal use
- Customizable Phase Matching: Optimized for specific laser wavelengths and conversion processes
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- High Dielectric Constant: BST has an exceptionally high dielectric constant, which can be adjusted by varying the Ba/Sr ratio, making it ideal for capacitive applications.
- Tunable Properties: The dielectric constant of BST is voltage-tunable, which is valuable in applications that require adjustable electronic properties, such as tunable filters or phased array antennas.
- Ferroelectric and Pyroelectric: BST exhibits both ferroelectric and pyroelectric properties, making it useful in memory devices and sensors.
- Thermal Stability: BST thin films maintain good stability under high temperatures, which is important for applications in electronics and microwave systems.
- Customizable Composition: The Ba/Sr ratio can be tailored to optimize specific properties, such as tunability, dielectric constant, and thermal stability, for different applications.
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- Exceptional Photorefractive Effect: Superior for dynamic holography and real-time optical data storage.
- High Electro-optic Coefficient: Enabling efficient light modulation.
- Low Optical Damage Threshold: Excellent for high-sensitivity photorefractive applications.
- Piezoelectric and Pyroelectric Properties: Supporting applications in sensors and transducers.
- Nonlinear Optical Response: Suitable for second harmonic generation (SHG) and other nonlinear optical processes.
- Broad Transmission Range: Transparent from visible to near-infrared wavelengths.
