Roy, W7EL wrote:
"And a 1" square solar cell is about 50,000 wavelengths on a side."

Yes. The wavelength of light is so short, about 1/50,000 inch according
to Roy, that it is measured in Angstroms. The Angstrom is about 10 to
the minus 10th power meter.

My question is why anyone would want to produce micro, micro antenna
arrays when the LASER produces a narrow, uniform, high-intensity beam
of light of one very pure color (frequency) that can be directed in a
very thin concentrated beam over short and very long distances. Maybe
there isn`t such an efficient receiving device?

LASER (light amplification by stimulated emission of radiation) light
can be so intense that it can vaporize the hardest and most
heat-resistant materials. Can`t a receiving LASER be locked in-step with
external synchronization to provide necessary gain and selectivity?

I wrote: "Electricity does not travel through a void. Fields travel
through a void."

Electrons do travel through voids quite readily. Note the display on a
CRT. They take advantage of the emptyness not to colide with matter so
they can continue their flight. There are also countless electrons
wandering in space between the heavenly bodies, but not so many as to
provide a conductor.

What I meant to imply was that an EM wave does not consist of actual
volts and amps until a conductor intervenes to have the fields generate
the volts and amps on it.

Best regards, Richard Harrison, KB5WZI