polarizer-keeps-the-axis-component - Electromagnetic Waves and Polarization Step by Step

A linear polarizer keeps the requested axis field component and blocks the orthogonal one. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

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An ideal polarizer keeps the axis component

For axis mode, the incoming 10\ \text{V}/\text{m} splits with factor 3/5 for the passed component and orthogonal remainder.

E_{\parallel}=10\ \text{V}/\text{m}\cdot\frac{3}{5}=6\ \text{V}/\text{m},\quad E_{\perp}=10\ \text{V}/\text{m}\cdot\frac{4}{5}=8\ \text{V}/\text{m}