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Help answer the question about Polarizer Polarizing
Physics - Polarizing a Laser Beam?
(http://i68.photobucket.com/albums/i19/r34racer01/showmepl-31.gif?t=1271875404)A laser beam of intensity I0 = 33 W/m2 is propagating in the +z direction and is plane-polarized in the y-direction. Two linear polarizing sheets are lined up perpendicular to the beam with their transmission axes oriented at angles θ1 = 60° and θ2 = 30° with respect to the x-axis, as shown in the lower panels of the figure.(a) Calculate the intensity of the laser beam after Polarizer Polarizing it has passed through both polarizers.IR = ? W/m^2 (b) If instead the same laser beam is sent through the polarizer stack from right to left (in the negative z-direction) with the polarization of the beam remaining in the y-direction, calculate the intensity of the beam that emerges from the left after passing through the stack.IL = ? W/m^2 (c) Keeping the orientation of the first polarizer fixed at θ1 = 60°, the second polarizer is changed to θ2 = 0°. The initial laser beam (intensity I0 = 33 W/m2 , plane polarized in the y-direction) is sent through the system from left to right. Calculate the intensity of the laser beam that emerges on the right now.IR' = ? W/m^2 (d) Retaining the orientations of polarizers described immediately above, the same laser beam (intensity I0 = 33 W/m2, plane polarized in the y-direction) is sent through the system from right to left. Calculate the intensity of the laser beam that emerges on the left now.IR' = ? W/m^2
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