Dear Mr. Basil
This topic is about 2 kinds of excitation according to my conclusion.
THE first is above the surface of the ground and subsurface in an mm or fraction of it. this can be done by the 2 or more waves crossing to produce an interference pattern, as we know the cameras on hand can't see the wavelength of light out of this range 200nm-1200nm some cameras can only see 380-1050nm so using any wavelength, not in this range will do nothing to your camera! (my opinion).
THE second excitation happens underground from wave or sources coupled to the infrared or separated, this source is our true investigation.
for me, I haven't determined yet the cause, I have a huge list of reasons and trying to study each one and making a list of probabilities. until we get to the point
I'm not sure if the 1500 nm LEDs have to do with this it "could be".
regards
|