Hacker News new | ask | show | jobs
by metal_am 759 days ago
Just because something is reflective in the visible light spectrum doesn’t mean it’s reflective for the laser’s wavelength.
1 comments

Metal coating (Al, Ag, Au) is reflective in very wide range of wavelengths - from far IR to EUV [1].

1. https://en.m.wikipedia.org/wiki/Reflectance