# Reflectivity metals at high frequency

## Main Question or Discussion Point

As is commonly known metals are good mirrors i.e. they reflect very well visible light.
I wonder whetehr is it true for frequency much higher then the frequancy of visible
light. Does exists the frequency for which metals are almost transparent?

Related Atomic and Condensed Matter News on Phys.org
As is commonly known metals are good mirrors i.e. they reflect very well visible light.
I wonder whetehr is it true for frequency much higher then the frequancy of visible
light. Does exists the frequency for which metals are almost transparent?
Metals can be quite transparent for x-rays.

DrDu