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It is not difficult to configure an array of dipoles, yagi style, so that
the polarization angle is changed. Just a matter of geometry of conductors.
In stereo chemistry, stereoactive materials are classified as
configurational, geometric and confirmational isomers which involve either
chirality (handedness, or non superimposability of a mirror-image) or
rotation of some part of a molecule round a double or single bond.
Achnowleging that at some level this optical activity has to be described
by the angles of charge motion, I still find no great difficulty in
accepting some mechanism of this kind.
I fancy Ludwik finds a solid crystal array a more challenging object for
didactic description. One would hope that adjacent bonds are disposed at
angles which provide a natural 'corkscrew' path through the material (i.e.
a natural progression of charge carrier angle of oscillation) - though I
expect there is more than one mechanism for providing a preferential angle
of transmission through adjacent layers.
Perhaps I am too easily pleased, but these details are essentially just
'engineering' of the natural kind, to my way of thinking....
Brian Whatcott Altus OK