ттттттт Original Message ттттттт

   On Sunday, September 8, 2019 9:27 PM, jim bell <jdb10987@yahoo.com>
   wrote:

   ...

   In order to evaluate this as a proposed idea, a physicist would
   consider:
   1.  The loss of manufactured optical waveguides did indeed hit an
   unexplained 'floor' in the early 1980s, about 0.16 db/kilometers of
   loss.
   2.  The manufacturers and users of such fibers have had a very powerful
   motivation to figure out how to lower their loss to well below 0.16
   db/kilometers, for nearly 40 years.
   3.   Nothing has yet been found, or it would have been employed.
   4.   Photons do indeed possess an oscillating magnetic field.
   5.   A nucleus of an isotope with 'spin' does indeed behave as magnetic
   dipole.
   6.   Such a nucleus should be mechanically affected by the passage of
   light.
   7.   Energy should be transferred from that light to the nucleus, and
   thus the atom, as the light passes.
   8.   Removing most or all atoms with an electromagnetic 'spin' should
   remove this loss mechanism, in proportion to the amount of such
   isotopes remaining.
   Do you have any other ideas as to how that loss is manifested?

   i wonder if Rayleigh scattering is sufficient to account for the floor?
   unfortunately this is quite complicated in glass media; i don't know
   how to answer the question :/

   (e.g. the static shear modulus of glass multiplies the factors involved
   in determining a scattering coefficient...)

   best regards,