Which materials of infrared wedge prisms can Yutai Optics process?
Material	Transmission Range	Refractive Index@10um	Abbe Number	Thermal Expansivity	Typical Application
ZnSe	600 nm - 16 μm	2.4	-	7.1×10⁻⁶/℃	CO₂ laser (10.6 μm), thermal imaging
ZnS	500 nm - 12 μm	2.2	-	6.8×10⁻⁶/℃	Multispectral window, missile guidance
CaF₂	180 nm - 8 μm	1.39	95.3	18.5×10⁻⁶/℃	UV-IR wide band system
Si	1.2 μm - 7 μm	3.4	-	2.6×10⁻⁶/℃	MIR laser, semiconductor detection
Ge	2 μm - 16 μm	4	-	6.1×10⁻⁶/℃	Thermal imaging, infrared night vision

How to select the appropriate material for infrared wedge prisms?
CO₂ laser applications(10.6 μm): the preferred material is ZnSe(low absorption and high damage threshold).
Multispectral compatibility: ZnS (VIS to IR transmission).
Ultra-broadband requirements: CaF₂ (UV to MIR).
High refractive index needs: Ge or Si ( Ge shows performance degradation at elevated temperatures).