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硅凹凸透镜-Silicon Optical Lenses
- Silicon Lenses
Silicon lenses are advanced optical components engineered for precision applications in infrared (IR), terahertz (THz), and laser systems. Crafted from high-purity single-crystal silicon, they offer exceptional transparency across the 1.2–7 µm wavelength range, making them ideal for infrared imaging, thermal sensing, and spectroscopy. These lenses are available in concave (diverging) and convex (converging) configurations, enabling versatile light manipulation for focusing, collimating, or beam shaping.
  • High Thermal Conductivity: Ensures stability in high-temperature environments, critical for laser systems and industrial applications.
  • Cost-Effective Production: Utilizing semiconductor-grade processes like wafer-level etching and photolithography, silicon lenses achieve mass production with consistent quality.
  • Chemical Resistance: Resilient against harsh conditions, suitable for medical devices and corrosive environments.
  • Customization: Tailored designs for terahertz communication, laser radar, and biochemical sensing

Technical Parameters

Optical Properties
Transmission Range1.2-15μm
Refractive Index3.41776%@10μm
Reflection Loss46.1%@10μm
StructureSingle crystal,synthetic
Cleavage Planes<111>
Physical Properties
Density[g/cm3]2.33
Melting Point [℃]1414
ThermalConductivity [W/(m×K)]163 @ 313K
Thermal Expansion [10-6/K]2.6 @ 293K
Knoop Hardness [kg/mm2]1100
Specific Heat Capacity [J/(kg×K)]712.8
Dielectric Constant13 @f= 9.37GHz
Young’s Modulus (E) [GPa]130.91
Shear Modulus(G) [GPa]79.92
Bulk modulus(K) [GPa]101.97
Poisson Coefficient0.266
Chemical Properties
Solubility / g/LNone
Molecular Weight / g/mol28.09
硅透镜-Optical Communication Silicon Lenses
Silicon Infrared Transmitting Windows
ProjectSpecification
Size range2-300mm
Thickness0.12-60mm
Finish80-50，60-40，40-20，20-10，10-5
Faceλ/2，λ/4，λ/8，λ/10
Parallelism<3'-30”
Clear aperture>90%

Technical Advantages

  1. High Refractive Index (3.4@5μm): Enables compact, high-efficiency lens designs for infrared (IR) systems.

  2. Broadband Infrared Transmission (1.2–7μm): Ideal for MWIR, LWIR, and laser applications with minimal absorption loss.

  3. Superior Thermal Stability: Operates reliably in extreme temperatures (-200°C to +400°C), perfect for aerospace and industrial environments.

  4. Anti-Reflective (AR) Coating Options: Maximizes light throughput (>98%) and reduces surface reflections for critical laser and imaging systems.

  5. Customizable Geometries: Precision-machined concave/convex lenses tailored to your specifications (diameter, curvature, edge finish).

  6. Durable & Chemically Resistant: Resists humidity, acids, and abrasion for long-term performance in harsh conditions.

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