In the Cartesian Corredinate commonly the direction of the electric field is towards the Y axis and magnetic field is towards the Z axis and the propagation is towards the X axis of EMR. Here, I want to know about the polarization effect on an EMR or light wave and, if is there any situation where the electric field can directed toward the X-axis, the magnetic field toward the Y-axis, and the propagation toward the Z-axis.? Kindly explain and provide some references for understanding purpose of the students (Chapter-Remote Sensing and GIS).
Thanks & regards
All light is polarized, it is just that usually or often the light is a mixture of light of different polarizations, unless it is specially made to all be the same.
For a wave that carries energy, the electric and magnetic fields for one polarization become large and small together and are at right angles, and the wave travels at right angles to both of them. This is described by the vector description S=EXH, or the right hand rule.
If E is along Y and H along Z then the wave will go in the X direction. If E is along X and H along Y then the wave will go on the Z direction. Any three directions with this relationship are fine. They don't have to go along the axes.
Some waves are circularly polarized, so that the E and H rotate completely about the wave direction once every cycle, but waves like this can be understood as two linearly polarized waves added together.
Thank you very much Sir for clearing this concept for better understanding for me. Regards,
Tanmoy Basu
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