Used for high-temperature engine detection.
Reflective and scattering losses shall be minimized, with an average transmittance generally required to exceed 98%.
The figure below shows a typical spectral curve. Specific parameters are as follows:
Substrate: Ge, monocrystalline silicon, ZnSe, ZnS, etc.
Size: Customized as per customer requirements
Specifications: 3.7–4.8 μm, average transmittance >99%
