Broadband AR (BBAR) are multi-layer dielectric coatings designed for critical anti-reflective applications across an entire wavelength band.  These coatings can get complicated with more layers.  They do not produce as low of reflectance as V or Double-V coatings, but reflectance is still excellent with typical average reflectance < 0.5% across a given band.  They are durable and can survive reasonably high laser power fluence.

BBAR UV:

BBAR VIS:

 

BBAR NIR:

BBAR SWIR:

EX-BBAR: