Optical Silicon Windows Product Overview

Silicon optical window plates are optical windows made from single-crystal silicon. Due to their high transmittance in the mid-infrared range, high transmittance efficiency, and resistance to high temperatures and impacts, silicon window plates are commonly used in various infrared optical systems. Coligh is a Chinese manufacturer of silicon window plates. We currently offer both coated and uncoated silicon windows. We can process silicon window plates up to 150mm in diameter, and we maintain a large inventory of pre-fabricated silicon window plates with anti-reflective coatings or left uncoated.

Optical Silicon Windows Product Characteristic

Silicon, when used as a window material, allows specific infrared light to pass through, serving to protect critical components and isolate the environment.

• Silicon exhibits a transmission rate exceeding 50% in the 1.2-7.0μm range, which can be enhanced to over 80% with anti-reflective coatings. It remains opaque to ultraviolet and visible light, making it ideally suited for infrared applications as a window material.
• With a Mohs hardness of 7, silicon offers excellent wear and scratch resistance. Its high mechanical strength enables it to withstand significant pressure and impact.
• Silicon exhibits excellent thermal conductivity, facilitating heat dissipation, making it suitable for high-power infrared laser systems.

Why Choose Coligh For Custom Optical Silicon Windows

Coligh specializes in the manufacturing of silicon window wafers, offering our customers a variety of silicon optical window solutions.

• We utilize high-purity monocrystalline silicon to ensure high transmittance between 1.2 and 8 micrometers.
• We provide comprehensive customization services for dimensions, thickness, and coating according to client drawings and requirements. Processing capabilities include silicon window plates ranging from 2mm to 150mm in diameter, with custom sizing available.
• Two versions are offered for client selection: coated and uncoated. Coating typically involves anti-reflective DLC (Diamond-Like Carbon) film covering the 1.2-8μm wavelength range to minimize reflection and enhance transmission efficiency within this spectrum.

The Optical Silicon Windows Product Detail

 

Custom Capability Of Optical Silicon Windows

Optical Silicon Windows Application

• Infrared Thermal Imager
  Infrared cameras and detectors require window plates that shield internal sensors while allowing infrared light transmission, and simultaneously block dust, moisture, and corrosive gases. Silicon optical window plates protect core sensors from scratches, contamination, and humid environments. Silicon’s high infrared transmittance also ensures clear infrared imaging.
• High-Power Lasers
  High-power lasers generate significant heat, necessitating windows with high thermal conductivity for dissipation. Silicon simultaneously meets requirements for high infrared transmittance and thermal conductivity. As the output window for laser beams, silicon windows isolate the laser cavity from the external environment while facilitating heat dissipation.
• Fourier Transform Infrared Spectrometer
  FTIR spectral analysis often requires sample cells where corrosive substances may be present. Silicon windows resist chemical corrosion while providing excellent transmission in the mid-infrared range. Additionally, these windows serve as sealing elements for spectrometers, protecting core components.