No, in general you cannot have a fluctuating electric field without coexistence of a magnetic field.sheld said:is it dismiss the magnetic field from EM wave?
Polarization refers to the phenomenon where electromagnetic waves, such as light, oscillate in specific directions. This can occur in various types of waves, including radio waves, microwaves, and visible light.
Polarization occurs when the electric field of an electromagnetic wave oscillates in a specific direction. This direction can be horizontal, vertical, or any angle in between. The direction of polarization is determined by the orientation of the electric field.
Polarization can be caused by various factors, such as the physical properties of the medium through which the wave is traveling or the angle at which the wave is produced. For example, when light reflects off a smooth surface at a specific angle, it becomes polarized.
There are three main types of polarization: linear, circular, and elliptical. Linear polarization occurs when the electric field oscillates in a single plane, while circular polarization occurs when the electric field rotates in a circular motion. Elliptical polarization is a combination of both linear and circular polarization.
Polarization has various applications in different fields, such as telecommunications, photography, and astronomy. In telecommunications, polarized antennas are used to transmit and receive signals. In photography, polarizing filters are used to reduce glare and improve color saturation. In astronomy, polarimetry is used to study the polarization of light from celestial objects, providing valuable information about their composition and physical properties.