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Leading high-performance optical coatings and filters company, Alluxa, has introduced a 10.6 µm infrared (IR) notch filter with optical density > 4.0 (OD4). The innovative, high-layer-count IR optical coating is produced by utilizing Alluxa’s proprietary deposition capabilities that now deliver groundbreaking optical coating performance in the 8 µm to 12 µm spectral range.

The new 10.6 µm notch filter is a leap forward in IR coating technology. It features hundreds of layers to achieve blocking of OD4 at the laser wavelength. The filter matches the theoretical design spectrum very closely.

With this new high-layer-count capability, it is possible to create more complex infrared spectral functions and optical solutions. This will benefit customers who are looking to solve complex problems, whether they need notch filters, multi-bandpass, dichroic, or even arbitrary spectral shapes. Alluxa has been making high-performance IR filters using the Sirrus deposition process for several years, but the 10.6 µm OD4 notch filter highlights their advanced capability in the 8 µm to 12 µm range.

Click here to know more about Alluxa's full line of high-performance, thin-film optical filters.