3 ms·

"The light . . . must be focused to an intensity of 10 million watts per square centimeter. Sunlight isn't this intense on its own . . ." Just a bit of an unde

"The light . . . must be focused to an intensity of 10 million watts per square centimeter. Sunlight isn't this intense on its own . . ." Just a bit of an understatement.

ctdonath 13y ago
Start with full-on solar intensity of 1000 watts per square meter. 100x100 meters gives the power input needed. Focus that on 1m^2, then focus that in turn to 1cm^2. Sounds doable.
- bcbrown 13y ago
  It's not that simple. There's a minimum beam size, and passive optics won't let you alter that. https://en.wikipedia.org/wiki/Gaussian_beam#Beam_width_or_spot_size https://en.wikipedia.org/wiki/Gaussian_beam#Beam_width_or_sp...
VladRussian2 13y ago
at 10MWt/cm2 how long the exposure is before the material melts/evaporates?