LASIK eye surgery uses pulses of laser light to shave off tissue
from the cornea, reshaping it. A typical LASIK laser emits
a 1.0-mm-diameter laser beam with a wavelength
of 193 nm. Each laser pulse
lasts 18 ns and contains 1.6 mJ of
light energy.
What is the power of one laser pulse?
During the very brief time of the pulse, what is the intensity
of the light wave?