Derive the angular spectrum of the field transmitted through
an amplitude grating that the transmission coefficient is T=T0*
cos^2(2pi*x/a). Assuming normal incident plane wave at wavelength
?. Based on the result, design a amplitude grating that has uniform
power distribution into three diffraction orders.
In the Figure, a beam of light, with intensity 43
W/m2 and polarization parallel to a y axis, is
sent into a system of two polarizing sheets with polarizing
directions at angles of θ1 = 70o and
θ2 = 90o to the y axis. What is the
intensity of the light transmitted by the two-sheet system?
Two polarizers are set up so that their polarization directions
are parallel and vertical. Which of the following describes light
that has passed through both filters?
A. The light is polarized in the veritcal direction
B. the light is polarized in the horizontal direction
C. The light is not polarized
D. No light passes through the filters