مرآة بوروفلوت 33، أقصى انعكاس 633 نانومتر

Installed this in my 532nm laser setup and the difference in beam quality was immediate. The narrowband coating handles the power without any noticeable heat buildup.

Swapped this in for a cheap mirror in my HeNe setup and the difference was obvious right away — the beam stays tight with almost no scatter. Borofloat 33 substrate feels solid and the coating hasn't degraded after a few months of regular use.

I've been using this mirror to steer a 633 nm HeNe beam and the reflection is so clean I forgot there was a mirror in the path. The coating absorbs essentially nothing, so even after an hour of alignment the optic is still cool to the touch.