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Optical Coatings


 Over 900 Coating Designs from 120nm to 20µm

  UV, Visible, NIR, SWIR, and LWIR Spectral Ranges

  Single and Multi-Layer Anti-Reflection, Filter, Polarizing, and Metallic Designs

  Hundreds of Stock and Custom Optical Coating Options

Overview

Optical Coatings are a critical portion of the finished optical component or assembly.  Accurate optical coating design and production can mean the difference between the component failing in the field, or lasting for the intended lifetime of the project.  Edmund Optics® has extensive coating capabilities, and expertise in producing coatings for advanced diagnostic applications, harsh environment imaging assemblies, and applications throughout the ultraviolet (UV), visible (VIS), and Infrared (IR) spectral regions.  All optics are meticulously cleaned, coated, and inspected in a clean room environment, and subjected to the environmental, thermal, and durability requirements specified by our customers.  For more information about optical coating options, contact us.

Capabilities

Edmund Optics® produces dozens of stock anti-reflection (AR) and metallic mirror coatings and an even wider range of custom optical coatings in our internal coating facilities. If our standard coating options will not work for your application, we will work with you to design a custom coating.

  • Filters – Fluorescence, Dichroic, Narrow Bandpass, Multi-Bandpass, Notch, Edge (SWP and LWP)
  • Anti-Reflection – Single Layer, High Efficiency Multi-Layer (Broadband), Laser V, Double Laser V
  • Beamsplitters – Polarizing, Non-Polarizing
  • High Laser Damage Threshold – Anti-Reflection, High Reflection
  • ITO Conductive
  • Mirrors – Protected and Enhanced Aluminum, Silver, and Gold, "Hot" and "Cold" Dielectric, Multi-Layer Dielectrics
  • Specialized Designs – Build to Print, Custom Design and Development for UV, Visible, Infrared (NIR, MWIR, SWIR, LWIR)
General Coating Capabilities
Dimensions (Diameter or Square) 2 – 1000mm
Substrates All borosilicate glass types, fused silica, calcium fluoride, silicon, and germanium
Spectral Ranges 120nm – 20μm
Edge Steepness (T50% to OD>4) <0.5%
Spectral Edge Tolerance <1% Deviation, <0.2% Special Cases
Blocking >OD 7, measured*
Neutral Density Tolerance OD ±5%
Center Wavelength CWL ±1nm
Bandpass Filter Bandwidth 1nm - Broadband
SWP, LWP Pass Bandwidth 100 - 1580nm
Transmission >95%, Typical
Reflection 0.1 – 99.95%
Polarization (S:P) 10,000:1
Laser Damage Threshold 20 J/cm2 @ 1064nm @ 20ns Pulses typical if specified
Number of Layers 200+
Durability MIL-PRF-13830B APP C, PARA C.3.8.4, PARA C.3.8.5, MIL-C-48497A
*Measured in the UV-visible range

Equipment

Edmund Optics® has state-of-the-art optical coating facilities in the US, Japan, and Singapore with capabilities including:

  • E-Beam Deposition
  • Ion-Assisted Deposition
  • Ion Beam Sputtering
  • Magnetron Sputtering
  • Thermal Evaporation
  • Hard Coatings for Stringent Environments and Durability
  • Automated Ultrasonic Cleaning

Metrology

Edmund Optics® performs a range of testing to ensure the highest performance from our stock and custom optical coatings. Coating metrology equipment:

Aspheric Equipment

Learning Resources

Application Notes

Technical information and application examples including theoretical explanations, equations, graphical illustrations, and much more.

Introduction to Optical Coatings
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Anti-Reflection Coatings
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Metallic Mirror Coatings
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Benefits of Hard Coatings
Read  

The Complexities of High-Power Optical Coatings
Read  

Videos

Informative corporate or instructional videos ranging from simple tips to application-based demonstrations of product advantages.

What’s New in Optical Coatings Video Series
Watch  

Calculators

Links to technical articles appearing in industry publications authored by Edmund Optics® or featuring contributions from EO's engineering team and key management.

No One-Size-Fits-All Approach to Selecting Optical Coatings
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Improving laser optics coating
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Optical Coating Technology and Applications: Past and Present to Future
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Creating Complex Coatings
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The key to coatings
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