EEC135_Homework1

# EEC135_Homework1 - Homework Assignment#1 Due Reading...

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Homework Assignment #1 Due January 16, 2008 Reading Assignment: Shen and Kong, or 130B textbook covering rectangular waveguides and polarization representations Problem 2. Imagine that we have randomly polarized room light incident almost normally on the glass surface of a radar screen. A portion of it would be specularly reflected back toward the viewer and would thus tend to obscure the display. Suppose now that we cover the screen with a ‘right-circular polarizer’ as shown in the following figure. Trace the incident and reflected beams, indicating their polarization states. What happens to the reflected beam? Hint: The ‘right-circular polarizer’ consists of a polarizer and a quarterwave plate. The polarizer transmits the wave linearly polarized

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along its axis and rejects the wave polarized in the orthogonal direction to its axis. The quarter wave plate is an optical element that introduces a relative phase shift of π / 2 between the consituent orthogonal o - and e- components of a wave.
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