posted on Mar, 28 2010 @ 08:18 PM
A laser isn't just really intense light. Laser light is coherent, which means that the photons that make it up all have the same frequency, phase,
and polarization. Sunlight, like light from a light bulb, is incoherent, and sending it through a magnifying lense won't help in that respect.
Laser light, and all coherent light, behaves substantially differently than incoherent light. It is also produced in a different way than the light
from a lightbulb or the sun. Although, we do use lenses to manipulate laser light.