Wave Polarization: Can EM Wave Be Circular & Horiz?

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Electromagnetic waves can exhibit mixed polarization states, such as 60% linear and 40% circular polarization. A circularly polarized wave inherently contains both horizontal and vertical components, confirming its dual nature. Additionally, any pure polarization state can be decomposed into two orthogonal basis states, including linear, circular, and elliptical polarizations. This decomposition allows for a better understanding of complex wave behaviors. Overall, the interaction of different polarization types enhances the versatility of electromagnetic wave applications.
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Can an electromagnetic wave be both circular polarized and horizontal or E polarized at the same time?
 
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It can be a mix, such as 60% plane, 40% circular.
 
A circular polarized wave has both horizontal and vertical polarization, is this correct?
 
Completely circularly polarized light can be decomposed into two orthogonal linear components in quadrature. In general, any pure polarization state can be decomposed into two orthogonal basis states (linear, circular, elliptical, etc).
 
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