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Windows for Applications with Explosive Gases and/or Harsh Environments

As an option, detectors with windows for applications with explosive gasses or harsh environments are available:

AR coated, inexpensive, high transmission from 2.5μm, robust and not affected by moisture

1.1 – 14 µm

Sapphire

Tough, scratch resistant, very transparent but cuts off at 6μm

0.1-5.0 µm

CaF2

High transmission to 8μm, but is a water soluble crystal

0.15 – 8.0 μm

BaF2

High transmission to 11μm, but is affected by moisture (less than CaF2)

0.5-10 µm

ZnSe

Tough, good to 22μm, but has lower transmittance

0.6 – 20 μm

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