Diamond-Like Carbon (DLC)

Diamond-Like Carbon (DLC)

DLC Coating

Diamond-like coatings are used across many industries in magnetic storage disks, car and engine parts, biomedical implants, and cutting and forming tools. They are a preferred choice in defense and security applications where environmental factors necessitate an anti-reflective coating with high durability and ability to withstand harsh conditions.

While inherent property concerns of a diamond-like coating, such as compressive stress, can be controlled with process input settings, the real Achilles heel of a DLC coating are Pinholes – common to systems that coat up.

DLC Spectral Performance Chart
DLC Spectral Performance Chart on Germanium

EMF’s custom-designed DLC coating chamber deposits the carbon towards the top of the chamber which results in optical coatings with virtually zero pinholes. In addition, its Plasma-Enhanced Chemical Vapor Deposition (PE-CVD) technique results in a superior quality product. Several other design and process enhancements eliminates the four most common customer issues associated with coatings – pinholes, uniformity, stress and adhesion.

EMF’s proprietary chemical vapor deposition technique enables it to coat all IR optics including Germanium (Ge), Silicon (Si), Zinc Selenide (ZnSe) and Sinc Sulfide (ZnS), and even chalcogenides with confidence. EMF has successfully coated chalcogenide-based optics for some of the most demanding commercial and military applications.

We look forward to learning more about your challenges and discussing how we may help solve them. Call 1-833-IR-FRANK or email irfrank@dynasil.com if you are facing challenges coating your IR optics.

Download DLC/HEAR Info Sheet

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