![]() ![]() HEM ® optical sapphire material exhibits the unique capability of having a broad transmission range from 150 nm to 5.5 microns other synthetic materials have absorption bands. HEM ® sapphire M-, C-, and r-plane windows are available up to 9” in diameter, also with unrestricted thickness. Our superior optical quality sapphire is available in large A-plane sapphire window sizes up to 22” diameter with unrestricted thickness. HEM ® sapphire windows are the most widely used synthetic sapphire in optical applications. New for aerospace and defense applications: Large-format, high-quality HEM-grown sapphire boules.
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