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UV and IR Windows

UV Windows and IR Windows are Optical Windows designed for optimal performance in the Ultraviolet (UV) and Infrared (IR) spectrums. UV Windows are used in many laser applications. IR Windows are ideal for use in FTIR spectroscopy, in addition to thermal imaging, FLIR, or medical systems. Optical Windows do not introduce optical magnification into a system. Optical Windows should be chosen based on the substrate’s mechanical or optical properties.

Edmund Optics offers a wide range of Optical Windows, including either Ultraviolet Windows or Infrared Windows in multiple anti-reflection coating or substrate options. Substrate options include materials such as UV Fused Silica, Calcium Fluoride (CaF2), Magnesium Fluoride (MgF2), Potassium Bromide (KBr), Sapphire, Silicon (Si), Sodium Chloride (NaCl), Zinc Selenside (ZnSe), or Zinc Sulfide. Metalized Windows are offered for soldering or bonding directly into an opto-mechanical assembly. IR Windows Kits contain some of Edmund Optics’ most popular Infrared (IR) Windows.

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Pure (Undoped) YAG Windows Pure (Undoped) YAG Windows New
  • Excellent Mid-Wave IR (MWIR) (4 - 5µm) Transmission
  • Available in 5, 10, 12.5, and 25mm Diameters
  • Commonly Used in White Light Generation
λ/10 Infrared (IR) Fused Silica Windows λ/10 Infrared (IR) Fused Silica Windows New
  • Corning 7979 IR Grade Fused Silica Substrates
  • Broad Transmission Range from 200 – 3500nm
  • λ/10 Transmitted Wavefront Distortion
  • Excellent Thermal Stability
Magnesium Fluoride (MgF<sub>2</sub>) Windows Magnesium Fluoride (MgF2) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Excellent Transmission from 120nm to 7μm
  • Rugged and Durable
  • Resistant to Chemical Etching
Lithium Fluoride (LiF) Windows Lithium Fluoride (LiF) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • High Transmission from 150nm - 6μm
  • Excellent Vacuum UV (VUV) Transmission
  • Low Index of Refraction
Barium Fluoride (BaF<sub>2</sub>) Windows Barium Fluoride (BaF2) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Excellent Transmission from 200nm - 12μm
  • Resistant to High-Energy Radiation
  • Provide High Transmission without AR Coatings
ISP Optics Barium Fluoride (BaF<sub>2</sub>) Wedged Windows ISP Optics Barium Fluoride (BaF2) Wedged Windows
Calcium Fluoride (CaF<sub>2</sub>) Windows Calcium Fluoride (CaF2) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
ISP Optics Calcium Fluoride (CaF<sub>2</sub>) Wedged Windows ISP Optics Calcium Fluoride (CaF2) Wedged Windows
Suprasil® Windows Suprasil® Windows
  • High Transmission from 200 to 3500nm
  • <1 ppm OH Content for Minimal Absorption Losses
  • 10-5 Surface Quality and up to λ/10 TWD
Ultra-Thin Fused Silica Windows Ultra-Thin Fused Silica Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Ultra-Thin 0.20mm Thickness
  • UV Fused Silica Substrates
  • Extremely Lightweight
1&lambda; UV Fused Silica Windows 1λ UV Fused Silica Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Available Uncoated or with Broadband Anti-Reflection Coatings
  • Ideal for Cost Sensitive Broadband Applications
  • Circular and Square Sizes from 5mm to 100mm
  •  λ/4 or λ/10 UV Fused Silica Windows Also Available
λ/4 UV Fused Silica Windows λ/4 UV Fused Silica Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
New
  • Available Uncoated or BBAR Coated for UV, Visible, and NIR
  • Ideal for Imaging Applications
  • Circular and Rectangular Sizes from 5 to 200mm
  • 1λ or λ/10 UV Fused Silica Windows Also Available
λ/10 UV Fused Silica Windows λ/10 UV Fused Silica Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
New
  • UV, Visible, and NIR Anti-Reflection Coated Versions Available
  • λ/10 Transmitted Wavefront Distortion
  • Circular and Square Sizes from 2mm to 150mm
  • 1λ or λ/4 UV Fused Silica Windows Also Available
Ultrafast Thin Windows Ultrafast Thin Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • 1mm Thickness for Limited GDD
  • Low Loss Broadband IBS Anti-Reflection Coating
  • Designs for Wavelengths from 370nm to 2200nm
  • Coating GDD of ±30fs2
  • UV or IR Grade Fused Silica Substrates
Uncoated Laser Window Substrates Uncoated Laser Window Substrates
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
New
  • Up to 10-5 Surface Quality and λ/10 Surface Flatness Available
  • Fused Silica or N-BK7 Material
  • Standard Imperial Sizes for Drop-in Replacement Solutions
  • Laser Line Coated Versions Available
  • Mirror Substrates Also Available
Coherent® Optical Grade Polycrystalline CVD Diamond Windows Coherent® Optical Grade Polycrystalline CVD Diamond Windows
  • High Transmission Across UV, FIR, and Microwave Spectra
  • High Thermal Conductivity for Use with High Power Lasers
  • Exceptional Hardness for Ultimate Scratch Resistance
  • Coherent® Manufactured
Sodium Chloride (NaCl) Windows Sodium Chloride (NaCl) Windows
Potassium Bromide (KBr) Windows Potassium Bromide (KBr) Windows
  • Excellent Transmission from 250nm – 26μm
  • Good Resistance to Mechanical Shock
  • Ideal for FTIR Spectroscopy
  • Sodium Chloride (NaCl) Windows Also Available
Machine Vision Mounted Sapphire Windows Machine Vision Mounted Sapphire Windows
  • Protective Windows for Machine Vision Applications
  • Windows Feature Extreme Surface Hardness and Chemical Resistance
  • M25.5 to M62.0 Filter Threads Available
Sapphire Windows Sapphire Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Top Seller
New
  • Features Extreme Surface Hardness Chemical Resistance
  • Transmits Wavelengths Ranging From UV to Mid-Infrared
  • Thinner and Stronger than Standard Glass Windows
  • Anti-Reflection Coating Options Covering 350 - 5000nm Available
Sapphire Windows with Through Holes Sapphire Windows with Through Holes
  • 25.4mm Diameter Sapphire Substrates
  • 3.2 - 19.1mm Through Hole Diameters
  • High Transmission From 0.33 - 5.5μm
High Durability Anti-Reflection (AR) Coated Sapphire Windows High Durability Anti-Reflection (AR) Coated Sapphire Windows
  • Achieves Severe Abrasion Requirements of MIL-C-675C
  • Low Reflection Coatings for 400 - 1100nm or 2000 - 5000nm
  • Ideal for Harsh Environments Requiring Thin Optics
  • Uncoated Sapphire Windows are Also Available
Laser Grade C-Axis Sapphire Windows Laser Grade C-Axis Sapphire Windows
  • C-Axis Cut Sapphire to Eliminate Birefringence
  • 10-5 Surface Quality and λ/10 TWFD
  • Uncoated or IBS AR Coated for 1000-1100nm
  • Ideal for High Power Laser Applications
TECHSPEC® Zinc Sulfide Multispectral Windows Zinc Sulfide Multispectral Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Multispectral Grade Zinc Sulfide Substrate
  • Low Absorption and Low Scatter from 0.4 - 12μm
  • Available Uncoated or 3 - 12μm Broadband AR Coated Option

Zinc Selenide (ZnSe) Windows Zinc Selenide (ZnSe) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Low Dispersion
  • Available Uncoated or AR Coated
  • Ideal for Thermal Imaging, FLIR, and Medical Systems
ISP Optics Zinc Selenide (ZnSe) Wedged Windows ISP Optics Zinc Selenide (ZnSe) Wedged Windows
ISP Optics Thallium Bromoiodide (KRS-5) Windows ISP Optics Thallium Bromoiodide (KRS-5) Windows
  • Broad Transmission from 700nm - 40μm
  • Non-Hydroscopic
  • Ideal for FTIR Spectroscopy with Aqueous Samples
ISP Optics AMTIR-1 Windows ISP Optics AMTIR-1 Windows
  • Transmission from 750nm - 14μm
  • Excellent Chemical Resistance to Acids
  • Low Index of Refraction
ISP Optics Gallium Arsenide (GaAs) Windows ISP Optics Gallium Arsenide (GaAs) Windows Clearance
  • Broad Transmission Range from 1 - 16μm
  • Tough, Durable Infrared Material
  • Water Insoluble and Chemically Stable
ISP Optics Cadmium Telluride (CdTe) Windows ISP Optics Cadmium Telluride (CdTe) Windows Clearance
  • Broad Transmission Range from 1 - 25μm
  • No Absorption Bands between 12 - 25μm
  • Ideal for Longwave IR Spectroscopy
Silicon (Si) Windows Silicon (Si) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Transmission from 1.2 - 7μm
  • Available Uncoated or AR Coated for 1.65 - 5μm
  • Ideal for Weight Sensitive Applications
ISP Optics Diamond-Like Carbon (DLC) Coated Silicon Windows ISP Optics Diamond-Like Carbon (DLC) Coated Silicon Windows
Germanium (Ge) Windows Germanium (Ge) Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
Top Seller
  • Uncoated or with AR Coatings Designed for a Variety of IR Ranges
  • Minimal Chromatic Aberration Due to Low Dispersion
  • Ideal for Infrared Applications Requiring Rugged Optics
  • DLC Coated Germanium Windows are also Available
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
  • Edmund Optics has limited remaining inventory of this part number and no raw material available to supply more once this is depleted.  Please contact our Product Support Engineers to help with an alternate solution for your needs. Customer Service can provide you the latest price and availability.
ISP Optics Germanium (Ge) Wedged Windows ISP Optics Germanium (Ge) Wedged Windows
  • 30 Arcmin Wedge
  • High Transmission from 2 – 10µm
  • Ideal for Infrared Applications Requiring Rugged Optics
  • Precision Flat Germanium Windows Also Available
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
TECHSPEC® Diamond-Like Carbon (DLC) Coated Germanium Windows Diamond-Like Carbon (DLC) Coated Germanium Windows
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
  • Meets Severe Abrasion Requirements of MIL-C-675C
  • ≥90% Transmission from 8 - 11.5µm
  • Ideal for Harsh Environments
  • Uncoated, 3-5 Micron BBAR, and 8 - 12 Micron BBAR Coated Germanium Windows are also Available
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
  • Edmund Optics has limited remaining inventory of this part number and no raw material available to supply more once this is depleted.  Please contact our Product Support Engineers to help with an alternate solution for your needs. Customer Service can provide you the latest price and availability.
Infrared (IR) Material Windows Infrared (IR) Material Windows
  • Excellent Optics for Infrared Detectors
  • Minimal Absorption Loss from 8 - 14μm
  • Easily Cut to Size
ISP Optics Magnesium Fluoride (MgF<sub>2</sub>) Windows ISP Optics Magnesium Fluoride (MgF2) Windows Clearance
  • Excellent Transmission from 0.12 to 7μm
  • Rugged and Durable
  • Resistant to Chemical Etching
ISP Optics Barium Fluoride (BaF<sub>2</sub>) Windows ISP Optics Barium Fluoride (BaF2) Windows Clearance
  • Excellent Transmission from 0.2 - 12μm
  • Resistant to High-Energy Radiation
  • High Transmission without AR Coatings
ISP Optics Calcium Fluoride (CaF<sub>2</sub>) Windows ISP Optics Calcium Fluoride (CaF2) Windows Clearance
  • Greater than 90% Transmission from 350nm-7μm
  • Low Index of Refraction
  • Low Solubility and Chemically Inert
ISP Optics Sapphire Windows ISP Optics Sapphire Windows Clearance
  • High Corrosion Resistance and Thermal Stability
  • Higher Durability than Glass Windows
  • Transmission from 0.33 – 5.5µm
ISP Optics Germanium (Ge) Windows ISP Optics Germanium (Ge) Windows
  • Minimal Chromatic Aberration Due to Low Dispersion
  • Uncoated Transmission from 2 – 16µm
  • Available with BBAR or DLC Coating for 8 – 12µm
  • Due to material supply chain disruptions with germanium, there may be increased lead times and price changes on our germanium products. For more information, please contact our customer service team.
  • Edmund Optics has limited remaining inventory of this part number and no raw material available to supply more once this is depleted.  Please contact our Product Support Engineers to help with an alternate solution for your needs. Customer Service can provide you the latest price and availability.
ISP Optics Fused Silica Windows ISP Optics Fused Silica Windows Clearance
  • Excellent Thermal Stability
  • Low Auto-Fluorescence
  • IR Grade Fused Silica
ISP Optics Quartz Windows ISP Optics Quartz Windows Clearance
  • High Transmission from 190 - 3500nm
  • High Chemical Resistance
  • Low Coefficient of Thermal Expansion
ISP Optics Potassium Bromide (KBr) Windows ISP Optics Potassium Bromide (KBr) Windows Clearance
  • Excellent Transmission from 0.25 – 26μm
  • Good Resistance to Mechanical Shock
  • Ideal for FTIR Spectroscopy
ISP Optics Silicon (Si) Windows ISP Optics Silicon (Si) Windows Clearance
  • Transmission from 1.2 - 7μm
  • Available Uncoated or HDAR Coated for 3 - 5μm
  • Ideal for Weight Sensitive Applications
ISP Optics Zinc Selenide (ZnSe) Windows ISP Optics Zinc Selenide (ZnSe) Windows Clearance
  • Low Dispersion and Absorption from 0.6 – 18µm
  • High Resistance to Thermal Shock
  • Ideal for Thermal Imaging, FLIR, and Medical Systems
ISP Optics Zinc Sulfide (ZnS) Windows ISP Optics Zinc Sulfide (ZnS) Windows Clearance
  • Low Absorption and Low Scatter from 0.4 - 12μm
  • Higher Durability than Zinc Selenide
  • Ideal for Use with Infrared Sensors
ISP Optics Lithium Fluoride (LiF) Windows ISP Optics Lithium Fluoride (LiF) Windows Clearance
  • Excellent Vacuum UV (VUV) Transmission
  • High Transmission from 150nm - 6μm
  • Low Index of Refraction
SCHOTT Chalcogenide Window Substrates SCHOTT Chalcogenide Window Substrates New
  • SCHOTT IRG Infrared Glasses
  • Lightweight with Broad Transmission Bands in the SWIR, MWIR, and LWIR Spectra
  • Ideal Alternative to Germanium
Featured Resources
 Application Note
Diffuser Selection Guide
Diffuser Selection Guide

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