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23 Nov 2019
. (a) What are the peak and rms (root-mean-square) values of theelectric field of radiation from a 100 W light bulb at a distanceof 1 meter?
(b) The peak power of a ruby laser is 100 MW. If the beam isfocused to a 10-?m diameter spot, find the irradiance and peak andrms amplitude of the electric field of the light wave at the focalpoint.
(c) Compare the results of part (a) and (b) with the breakdownvoltage of air which is ~30 kV/cm and comment.
. (a) What are the peak and rms (root-mean-square) values of theelectric field of radiation from a 100 W light bulb at a distanceof 1 meter?
(b) The peak power of a ruby laser is 100 MW. If the beam isfocused to a 10-?m diameter spot, find the irradiance and peak andrms amplitude of the electric field of the light wave at the focalpoint.
(c) Compare the results of part (a) and (b) with the breakdownvoltage of air which is ~30 kV/cm and comment.
