art wrote:
Cecil you are familiar with the many
aspects of radiation thus you have a great opportunity to supply the
required info that cannot be refuted by others .,So sieze the
opportunity where others are shying away.

Art, I am moving myself to a new QTH and just don't have the
time. To the best of my present knowledge, all of the coherent
photons are identical.
--
73, Cecil http://www.w5dxp.com