ZnS ATR Optical Elements


Spectral Systems offers a comprehensive set of ATR crystals for infrared sampling. We specialize in ATR coatings to optimize the performance and IR throughput for your ATR applications. We manufacture and design proprietary ATR crystals for many of our customers. We also offer many standard ATR replacement crystals for your existing accessory.


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  • ZnS ATR Optical Elements

    Zinc sulfide (ZnS) is a relatively hard material and is resistant to thermal and mechanical shock. It is insoluble in water but can be attacked by strong acids and bases. ZnS is classed as a GRAS material. Its spectral range is more limited than ZnSe in the long wavelength region. Coated versions of our ZnS ATR crystals are available for improved IR throughput and enhanced seal within the ATR crystal plate.

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