IGNOU MPH 13 2026 - What is Jones vector? Determine the Jones matrix for a linear polarise

Question

What is Jones vector? Determine the Jones matrix for a linear polariser which makes an angle of $60^\circ$ with the x-axis.

19 Jan 2026

Answer :

Word Count : 279

The Jones vector is a convenient mathematical representation used to describe the state of polarization of a completely polarized monochromatic light wave. In this formalism, the electric field of the wave is resolved into two orthogonal components along the x- and y-axes. If the complex amplitudes of these components are (E_x) and (E_y), the polarization state is written as a column matrix called the Jones vector, [ \begin{pmatrix} E_x \ E_y \end{pmatrix}. ] The relative magnitudes and phases of (E_x) and (E_y) uniquely determine whether the light is linearly, circularly, or elliptically polarized. Optical elements that modify the polarization state are represented by (2\times2) matrices, known

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