Silver should have good reflection over most of the spectrum, guess its the coatings making things strange then :/

Do you have the silver or the golden ones?

teledyne flir is holding the global monopoly on the most advanced image sensors across the spectrum. Ever say anything in thermal? Thats them. Allways.

I have seen Bias Tee injectors for up to [email protected], thats enough for a decent output booster. But yes in reality 99% of those where used for preamps in analog TV/Radio Rx