UV Windows - IR Windows - Ultraviolet Windows

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Magnesium Fluoride (MgF<sub>2</sub>) Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Magnesium Fluoride (MgF₂) Windows

Excellent Transmission from 120nm to 7μm
Rugged and Durable
Resistant to Chemical Etching

New Lithium Fluoride (LiF) Windows

High Transmission from 150nm - 6μm
Excellent Vacuum UV (VUV) Transmission
Low Index of Refraction

Barium Fluoride (BaF<sub>2</sub>) Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Barium Fluoride (BaF₂) Windows

Excellent Transmission from 200nm - 12μm
Resistant to High-Energy Radiation
Provide High Transmission without AR Coatings

Barium Fluoride (BaF<sub>2</sub>) Wedged Windows

New Barium Fluoride (BaF₂) Wedged Windows

30 Arcmin Wedge
Excellent Transmission from 200nm - 12μm
Resistant to High-Energy Radiation
Precision Flat Barium Fluoride (BaF₂) Windows Also Available

Calcium Fluoride (CaF<sub>2</sub>) Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Calcium Fluoride (CaF₂) Windows

Low Absorption, High Transmission UV Grade Calcium Fluoride
Ideal for Applications Ranging from 200nm - 7μm
Low Index of Refraction

Calcium Fluoride (CaF<sub>2</sub>) Wedged Windows

New Calcium Fluoride (CaF₂) Wedged Windows

30 Arcmin Wedge
Low Absorption, High Transmission
Ideal for Harsh Environments
Precision Flat Calcium Fluoride Windows Also Available

New 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 Surface Flatness

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

1λ UV Fused Silica Windows

Available Uncoated or with Broadband Anti-Reflection Coatings
Ideal for Cost Sensitive Broadband Applications
Sizes Ranging from 5mm to 100mm Diameter
λ/4 or λ/10 UV Fused Silica Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

New λ/4 UV Fused Silica Windows

Available Uncoated or BBAR Coated for UV, Visible, and NIR
Ideal for Imaging Applications
Standard Diameter Sizes from 10 to 75mm
1λ or λ/10 UV Fused Silica Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

λ/10 UV Fused Silica Windows

UV, Visible, and NIR Anti-Reflection Coated Versions Available
High Tolerance for Precision Applications
Sizes Ranging from 5 - 75mm Diameters
1λ or λ/4 UV Fused Silica Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

New Ultrafast Thin Windows

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

New II-VI 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
II-VI Manufactured

Sodium Chloride (NaCl) Windows

Excellent Transmission from 250nm – 16μm
Low Cost
Ideal for FTIR Spectroscopy
Potassium Bromide (KBr) Windows Also Available

Potassium Bromide (KBr) Windows

Excellent Transmission from 250nm – 26μm
Good Resistance to Mechanical Shock
Ideal for FTIR Spectroscopy
Sodium Chloride (NaCl) Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Sapphire Windows

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 400 - 5000nm Available

New Sapphire Windows with Through Holes

25.4mm Diameter Sapphire Substrates
3.2 - 19.1mm Through Hole Diameters
High Transmission From 0.33 - 5.5μm

New 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

New 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

Precision UV Grade Sapphire Windows

λ/4 Surface Flatness Ideal for Imaging Applications
Improved Surface Quality to Minimize Scatter in UV Applications
Excellent Transmission from 0.2 - 5.5μm
TECHSPEC® Sapphire Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Zinc Sulfide Multispectral Windows

Multispectral Grade Zinc Sulfide Substrate
Low Absorption and Low Scatter from 0.4 - 12μm
Available Uncoated or 3 - 12μm Broadband AR Coated Option

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Zinc Selenide (ZnSe) Windows

Low Dispersion
Available Uncoated or AR Coated
Ideal for Thermal Imaging, FLIR, and Medical Systems

New Zinc Selenide (ZnSe) Wedged Windows

30 Arcmin and 3° Wedge Versions Available
Low Dispersion
Eliminate Etalon Effect and Cavity Feedback
Precision Flat Zinc Selenide Windows Also Available

New Thallium Bromoiodide (KRS-5) Windows

Broad Transmission from 700nm - 40μm
Non-Hydroscopic
Ideal for FTIR Spectroscopy with Aqueous Samples

New AMTIR-1 Windows

Transmission from 750nm - 14μm
Excellent Chemical Resistance to Acids
Low Index of Refraction

New Gallium Arsenide (GaAs) Windows

Broad Transmission Range from 1 - 16μm
Tough, Durable Infrared Material
Water Insoluble and Chemically Stable

New Cadmium Telluride (CdTe) Windows

Broad Transmission Range from 1 - 25μm
No Absorption Bands between 12 - 25μm
Ideal for Longwave IR Spectroscopy

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Silicon (Si) Windows

Transmission from 1.2 - 7μm
Available Uncoated or AR Coated for 1.65 - 5μm
Ideal for Weight Sensitive Applications

New Diamond-Like Carbon (DLC) Coated Silicon Windows

Meets Severe Abrasion Requirements of MIL-F-48616 and MIL-C-48497C
High Transmission from 3 – 5µm
Ideal for Harsh Environments
Diamond-Like Carbon (DLC) Coated Germanium Windows Also Available

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

Germanium (Ge) Windows

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

New 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

Diamond-Like Carbon (DLC) Coated Germanium Windows

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

New Diamond-Like Carbon (DLC) Coated Germanium Windows

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

Infrared (IR) Material Windows

Excellent Optics for Infrared Detectors
Minimal Absorption Loss from 8 - 14μm
Easily Cut to Size

TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

New Uncoated Laser Window Substrates

10-5 Surface Quality and λ/10 Surface Flatness
Fused Silica or N-BK7 Material
Standard Imperial Sizes for Drop-in Replacement Solutions
Laser Line Coated Versions Available

Featured Resources

Published Article

Laser Optics: Antireflection nanotextures for laser optics go commercial

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Optical Windows Review

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Hydrophobic Coatings

Application Note

Diffuser Selection Guide

View all Resources Related to 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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