Left circularly polarized light incident upon a quarter-waveplate. The fast axis of the waveplate is the x-axis. The behaviour of the field inside the waveplate is not being shown.

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Linearly polarized light incident upon a quarter-waveplate. The incident light is polarized at an angle of 45^o with respect to the positive x-axis. The fast axis of the waveplate is the x-axis. The behaviour of the field inside the waveplate is not being shown.

Linearly polarized light incident upon a linear polarizer. The incident light makes an angle of 45^o with respect to the positive x-axis. The transmission axis of the polarizer is the y-axis.

Left circularly polarized light incident upon a linear polarizer. The transmission axis of the polarizer is the y-axis.

Linearly polarized light incident upon a half-waveplate. The incident light is polarized at angle of 45^o with respect to the positive x-axis. The fast axis of the waveplate is the x-axis. The behaviour of the field inside the waveplate is not being shown.