Silicon

Where to begin

An infrared substrate to evaluate for lenses and windows when visible-light transmission is not required.

Design consideration

Confirm absorption, coating and temperature behavior.

Confirm the finished optic

The spectral regions on this site are orientation notes, not guaranteed transmission ranges. Ask for the material grade, thickness and measured transmission curve; include the coating and operating temperature in your review.

Reference

Edmund Optics: common laser optics materials and infrared material selection.