Gene Fuller wrote:
Cecil Moore wrote:
There is certainly radiation pressure pushing outward
from a 1/4WL thin-film non-reflecting surface even
though the reflected waves cancel each other.

Radiation pressure without waves?

Please don't deliberately obfuscate things, Gene.

There are no reflected waves on the outside of the
thin-film and therefore no reflected wave pressure
from the outside.

All the reflected waves are on the inside of the
thin-film outer plane. That's why the reflected wave
pressure is pushing outwards.

The pressure is where the waves are. There's no
wave pressure without waves.
--
73, Cecil http://www.w5dxp.com