Hi:

Is it theoretically-possible to facilitate hydrogen-hydrogen fusion
within the earth's troposphere using a laser? If so, what would be the
maximum wavelength [or minimum frequency] and minimum intensity of
laser light required for this? Also what would be the minimum
thickness of the laser beam necessary for this application?

The application of this nuclear fusion is not generation of power but
rather to produce a spectacular light show in the night sky -- using
the minimum light intensity, maximum wavelength, and minimum beam
thickness required.

I am guessing that the minimum wavelength required is too short for
the human eye to see. However, the effects of the laser-induced fusion
maybe visible.


Thanks,

Radium