Multiwavelength AR coatings achieve very low reflection at two, three or more selected narrowband spectral ranges. Typically reflection does not exceed 0.5% for normal incidence for couple of different target wavelengths and could be a bit higher for other target wavelengths.

Typical example is AR coating for Nd:YAG laser applications which reduces reflectance down to 0.5% at 355 nm, 532nm and 1064 nm.

 

 

For coatings at more specific or more broadband wavelengths, please check:

                                                  Single Wavelength AR coatings

                                                  Broadband AR coatings

                                                  Single layer AR coatings

 

                                                  Or contact us with your request.