Key Features:
- Wide Transparency Range: BaGa₄S₇ crystals provide a broad transmission range of 0.35–13.7 µm, making them suitable for various infrared applications.
- High Nonlinear Coefficient: With a nonlinear coefficient of d₃₁ = 12.7 pm/V, these crystals are excellent for nonlinear optical processes.
- Chemical Stability: BaGa₄S₇ crystals exhibit high chemical stability, ensuring reliable performance under diverse conditions.
- High Damage Threshold: These crystals possess a relatively high damage threshold, enhancing their durability in high-power laser systems.
Description: Barium Gallium Sulfide (BaGa₄S₇), abbreviated as BGS, is a novel nonlinear optical crystal with exceptional transparency and stability. Its broad transparency range extends from the UV edge at 350 nm (bandgap width 3.54 eV) to the IR range up to 13.7 µm. Additionally, BaGa₄S₇ crystals have a relatively high nonlinear coefficient and a high laser damage threshold, making them suitable for advanced optical systems.
Applications:
- Optical Parametric Oscillation (OPO): Ideal for OPO systems to generate tunable mid-IR radiation.
- Frequency Doubling and Mixing: Enhances the efficiency of Ndand Holaser systems and other laser sources.
- Difference Frequency Generation (DFG): Suitable for DFG processes to produce coherent mid-IR light.
- Sum Frequency Generation (SFG): Utilized in SFG applications for generating specific wavelengths.
Technical Specifications
Processing Parameters:
| Parameter | Value |
|---|---|
| Transmission Range | 0.35–13.7 µm |
| Nonlinear Coefficient | d₃₁ = 12.7 pm/V |
| Density | 3.95 g/cm³ |
| Clear Aperture | > 90% |
| Surface Flatness | λ/8 @ 632.8 nm (thickness ≥ 1 mm) |
| Surface Quality | 40–20 scratch & dig (MIL-PRF-13830B) |
| Parallelism | < 30 arcsec |
| Perpendicularity | < 10 arcmin |
| Dimension Tolerance | ± 0.1 mm |
| Chamfer | < 0.2 mm × 45° |
Applications
- Ndand Holaser pumped OPO systems
- Optical Parametric Oscillators (OPO)
- Difference Frequency Generation (DFG)
- Sum Frequency Generation (SFG)
- Optical Parametric Generation (OPG)
Basic Parameters
| Parameter | Value |
|---|---|
| Transmission Range | 0.35–13.7 µm |
| Nonlinear Coefficient | d₃₁ = 12.7 pm/V |
| Density | 3.95 g/cm³ |
| Surface Flatness | λ/8 @ 632.8 nm (thickness ≥ 1 mm) |
| Surface Quality | 40–20 scratch & dig |
| Parallelism | < 30 arcsec |
| Perpendicularity | < 10 arcmin |
| Clear Aperture | > 90% |
| Dimension Tolerance | ± 0.1 mm |
| Chamfer | < 0.2 mm × 45° |
Why Choose Shape Optics?
Shape Optics is committed to providing high-quality optical materials, and our BaGa₄S₇ crystals (BGS Crystals) are designed to meet the rigorous demands of modern optical applications. With superior optical properties, precise manufacturing, and dedicated customer support, Shape Optics is your trusted partner for advanced optical solutions.
For more information, please visit our website at Shape Optics or contact us directly to discuss your specific requirements. Shape Optics is dedicated to delivering top-quality optical crystals and materials for your innovative projects.
