Key Features:
- No absorption in the infrared range of 1.2-6 µm
- Excellent for near-infrared and mid-infrared applications
- Suitable for optical windows and laser mirrors in the 3-5 µm range
- Available with broadband AR coatings from 3-12 µm
Description: Silicon (Si) is a single crystal primarily used in semiconductor applications. It exhibits no absorption in the 1.2-6 µm infrared range, making it an excellent optical component for infrared applications. Silicon is widely used for optical windows and the end caps of optical filters in the 3-5 µm wavelength range. Shape Optics provides high-quality Silicon crystals customized to meet specific requirements, ensuring optimal performance in various optical applications.
Physical Properties:
| Property | Specification |
|---|---|
| Density | 2.33 g/cm³ |
| Hardness | 1150 kg/mm² (Knoop) |
| Melting Point | 1414°C |
| Thermal Conductivity | 149 W·m⁻¹·K⁻¹ |
| Thermal Expansion Coefficient | 2.6 x 10⁻⁶ /°C |
Optical Properties:
| Property | Specification |
|---|---|
| Transmission Range | 1.2-15 µm |
| Refractive Index | 3.42 @ 10 µm |
| Absorption Coefficient | < 0.02 cm⁻¹ @ 10.6 µm |
| Optical Density (OD) | 1.7 |
| Transmission (%) | > 50% @ 10.6 µm |
Standard Specifications:
| Property | Specification |
|---|---|
| Diameter | Up to 8 inches |
| Thickness | 0.5 to 10 mm |
| Surface Quality | 40/20 Scratch/Dig (MIL-PRF-13830B) |
| Surface Flatness | λ/8 @ 632.8 nm |
| Parallelism | < 1 arc minute |
| Perpendicularity | < 5 arc minutes |
| Coating | Custom designs available |
Other Properties:
- High mechanical strength
- Excellent thermal stability
- High resistance to environmental conditions
Applications:
- Near-infrared (NIR) and mid-infrared (MIR) optics
- High-power CO₂ laser optics
- Optical windows for IR systems
- Medical and scientific instruments
- Thermal imaging and infrared sensing
Processing and Handling:
- Silicon crystals require careful handling to avoid surface damage and contamination.
- Use gloves or finger cots when handling Silicon components.
- Store in a clean, dry environment with temperature control to prevent thermal shock.
- Ensure proper cleaning procedures to maintain optical quality.
Why Choose Shape Optics:
- We provide high-quality Silicon crystals with precise specifications and excellent optical properties.
- Our crystals undergo stringent quality control to ensure reliability and performance in demanding applications.
- Customization options available to meet specific requirements.
Shape Optics Strength and Capabilities:
- Expertise in crystal growth and fabrication techniques.
- Advanced metrology and inspection facilities to ensure superior product quality.
- Comprehensive support and consultation services to assist in the integration of Silicon crystals into various optical systems.
- Commitment to innovation and excellence in the field of optical engineering.