What infrared materials can Yutao Optics process for right angle prisms?
Yutai Optics can process infrared right angle prisms made of silicon, germanium, CaF2 and ZnSe materials.

Comparison of infrared right angle prisms
Material	Transparent Range(μm)	Refractive Index (@10.6μm)	Thermal Expansivity(×10⁻⁶/K)	Typical Application
ZnSe	0.5-22	2.402	7.1	CO₂ laser systems, thermal imaging
Ge	2-23	4.003	6.1	Military infrared, long wave detection
Si	1.2-15	3.418	2.6	MWIR optics
CaF2	0.13-10	1.399	18.9	Wide band infrared spectroscopy