High Durability Sapphire Crystal Optics 2-8 Inch Diameter with 0.17-5.5 Micron Transmission Range
Price:
Negotiable
MOQ:
5 Pieces
Delivery Time:
1-4 weeks
Brand:
BonTek
Product Description
High Durability Sapphire Crystal Optics
Sapphire crystal optics engineered for short and long wavelength applications (UV and IR) where conventional optical materials fail to perform adequately. These optics withstand high temperatures and hostile environments while maintaining exceptional optical clarity.
Applications
- Illumination windows for high brightness applications - withstand extreme heat while providing broad spectral transmission
- Sapphire lightguides and rods - ideal for high temperature thermometry beyond quartz optics range
- Optical components including lenses, prisms, and infrared optics fabricated from high optical quality sapphire
Optical Properties
| Property | Specification |
|---|---|
| Transmission Range | 0.17 to 5.5 microns |
| Refractive Index | 1.75449 (o) 1.74663 (e) at 1.06 microns |
| Reflection Loss | 11.7% (o-ray) 14.2% (e-ray) at 1.06 microns |
| Index of Absorption | 0.3 x 10⁻³ cm⁻¹ at 2.4 microns |
| dN/dT | 13.7 x 10⁻⁶ at 5.4 microns |
| dn/dm = 0 | 1.5 microns |
Physical Properties
| Property | Specification |
|---|---|
| Density | 3.97 g/cm³ |
| Melting Point | 2040°C |
| Thermal Conductivity | 27.21 W/(m·K) at 300K |
| Thermal Expansion | 5.6 x 10⁻⁶/K (parallel C-axis) & 5.0 x 10⁻⁶/K (perpendicular C-axis) |
| Hardness | Knoop 2000 kg/mm² with 2000g indenter |
| Specific Heat Capacity | 419 J/(kg·K) |
| Dielectric Constant | 11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz |
| Young's Modulus (E) | 335 GPa |
| Shear Modulus (G) | 148.1 GPa |
| Bulk Modulus (K) | 240 GPa |
| Apparent Elastic Limit | 275 MPa (40,000 psi) |
| Poisson Ratio | 0.25 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Orientation | R-plane, C-plane, A-plane, M-plane or specified orientation |
| Orientation Tolerance | ±0.3° |
| Diameter | 2", 3", 4", 6", 8" or custom sizes |
| Diameter Tolerance | 0.1mm (2"), 0.2mm (3"), 0.3mm (4"), 0.5mm (6") |
| Thickness | 0.25mm, 0.33mm, 0.43mm, 0.65mm, 1mm or custom |
| Thickness Tolerance | 25μm |
| TTV | ≤10μm (2"), ≤15μm (3"), ≤20μm (4"), ≤25μm (6") |
| BOW | ≤10μm (2"), ≤15μm (3"), ≤20μm (4"), ≤25μm (6") |
| Front Surface | Epi-Polished (Ra |
| Back Surface | Fine ground (Ra=0.6μm~1.4μm) or Epi-polished |
| Packaging | Class 100 clean room environment |
Handling & Acceptance Guidelines
Important Handling Instructions
- Products are fragile and packed with fragile labeling. We use premium domestic and international express services to ensure transportation quality.
- Upon receipt, carefully inspect outer carton condition. Photograph packaging before removal.
- Open vacuum packaging in clean room environment only when ready for application.
- If damage is discovered during transit, photograph or video record immediately. DO NOT remove damaged products from packaging. Contact us for resolution.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hangzhou Freqcontrol Electronic Technology Ltd.
Location
Room 1106, CIBC, No.198 Wuxing Rd, Hangzhou, P.R.China
Contact Person
Xu