A weak laser beam with a 1mm diameter is directed in the z direction and is absorbed by a place black surface. The laser is at 700nm and produces an average of 10^12 photons per second. Determine the Poynting vector of this beam. Determine the electric and magnetic field maximum strength. What is the time between successive maximums in seconds? At a certain time the electric field points in the +x direction. What is the direction of the

A weak laser beam with a 1mm diameter is directed in the z direction and is absorbed by a place black surface. The laser is at 700nm and produces an average of 10^12 photons per second. Determine the Poynting vector of this beam. Determine the electric and magnetic field maximum strength. What is the time between successive maximums in seconds? At a certain time the electric field points in the +x direction. What is the direction of the