After reading Chris White’s and LDC3’s comments in the above related link, it got me wondering about silver’s atomic structure. When looking at the reflectance vs. wavelength plot below,
silver has a particularly strong resonance slightly around 315 nm when compared to the other metals. I believe that I have good understanding what silver is doing at optical frequencies (see this previous post) but I have no idea why there is such a strong UV absorption around 315 nm in silver. Can someone explain what is going on?