Laser optics include lenses, filters, mirrors, and beamsplitters.
- Substrates: BK7, H-K9L, Sapphire, fused silica, CaF2, MgF2, ZnSe, ZnS, GaAs, Ge, Si.
- Dielectric coatings improve mirror reflectivity.
- Careful selection of substrates and coatings for optical performance.
- Narrow band transmission/reflectance important for most laser applications.
- Ultrashort pulse lasers require broad transmission ranges.