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SCHOTT Chalcogenide Window Substrates

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  • SCHOTT IRG Infrared Glasses
  • Lightweight with Broad Transmission Bands in the SWIR, MWIR, and LWIR Spectra
  • Ideal Alternative to Germanium

SCHOTT Chalcogenide Glass Windows are suitable for a large range of IR applications and are an ideal alternative to Germanium substrates. Available in 5 different glass types optimized for excellent transmission in the NIR-LWIR ranges, these windows feature low dn/dt and dispersion with high color correction. Low density, coefficient of thermal expansion, and chemical resistance make them a great choice for low SWaP applications and harsh environments with changing temperatures. SCHOTT Chalcogenide Glass Windows are available in a standard 25.4mm diameter and a 3mm thickness. These windows are ideal for ideal for thermal imaging, spectroscopy, and sensing applications.

Note: IRG27 is a toxic material that can be absorbed through the skin. Gloves must be worn while handling this material. For all IRG materials, care should be taken when handling as these materials are soft and susceptible to scratches. This material should be stored in a low humidity environment and extended exposure to UV light should be avoided to avoid the development of haziness on the surface of the optic.

Common Specifications

Note:
Delivered in vacuum-sealed packaging
Bevel:
Protective as needed
Diameter (mm):
25.40 ± 0.1
Thickness (mm):
3.00 ± 0.1
Edges:
Polished
Coating:
Uncoated
Surface Flatness (P-V):
<5 λ P-V @ 632.8
Surface Quality:
60-40

Products

Dia. (mm)  Substrate   Compare   Stock Number   Price  Buy
25.40 SCHOTT IRG22 #72-860 New £233.75 Qty 11+ £187.00   Request Quote  
  • 3-4 days
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25.40 SCHOTT IRG24 #72-861 New £233.75 Qty 11+ £187.00   Request Quote  
  • 3-4 days
    ×
 
25.40 SCHOTT IRG25 #72-862 New £233.75 Qty 11+ £187.00   Request Quote  
  • 3-4 days
    ×
 
25.40 SCHOTT IRG26 #72-863 New £233.75 Qty 11+ £187.00   Request Quote  
  • Contact Us
    ×
 
25.40 SCHOTT IRG27 #72-864 New £233.75 Qty 11+ £187.00   Request Quote  
  • 3-4 days
    ×
 

Product Details

  • IRG22 – Offers excellent transmission in the NIR range. Chemical Formula Ge33As12Se55
  • IRG24 – Offers a low coefficient of thermal expansion for heat-sensitive applications. Chemical Formula Ge10As40Se50
  • IRG25 – Offers excellent SWIR, MWIR, and LWIR transmission. Chemical Formula Ge28Sb12Se60
  • IRG26 – Offers an exceptionally broad transmission range, with minimal absorption at 12.5um. Germanium Free. Chemical Formula As40Se60
  • IRG27 – Combines a high SWIR/MWIR transmission with a low coefficient of thermal expansion. Germanium Free. Chemical Formula As2S3