On 07/17/2012 11:32 PM, Azelio Boriani wrote:
Maybe: the experiment was made in March...
Anyway, as usual, first I commented and then read the article and, yes, I
was missing something but it is not so clear IMO. They say to have used 2
Yagi antennas at the receiver side and 1 Yagi and 1 modified parabolic dish
at the transmitter. Then by measuring the phase you can separate the two
signals. The phase of what is not clear: the carrier? The data? Why phase?
The angular momentum translates in a phase rotation? Like adding some delay?
Here another experiment with light:
http://www.nature.com/nphoton/journal/v6/n7/full/nphoton.2012.138.html
If you look it up on Wikipedia you find some more:
http://en.wikipedia.org/wiki/Orbital_angular_momentum_of_light
Anyway, this is heading of into the vast fields of off-topicness.
Cheers,
Magnus
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