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Light may be polarized by passing it through a sheet of commercial material called Polaroid, invented by E.H. Land in 1938. A sheet of Polaroid transmits only the component of light polarized along a particular direction and absorbs the component perpendicular to that direction.
31 Ιαν 2017 · The author incorporates basic topics, such as polarization by refraction and reflection, polarization elements, anisotropic materials, polarization formalisms (Mueller–Stokes and Jones) and associated mathematics, and polarimetry, or the science of polarization measurement.
Indeed, any possible polarization can be written as a linearly combination of left-handed and right-handed circularly polarized light. Circularly polarized light has angular momentum ±e0 E~ 2kˆ, with the positive sign for left-handed and the negative sign for right-handed. Linearly polarized light carries no angular momentum.
Chapter 4 Polarization 4.1 Introduction Polarization generally just means “orientation.” It comes from the Greek word polos, for the axis of a spinning globe. Wave polarization occurs for vector fields. For light (electromagnetic waves) the vectors are the electric and magnetic fields, and the light’s polarization direction is by
Polarization. The Electric field direction defines the polarization of light. Since light is a transverse wave, the electric field can point in any direction transverse to the direction of propagation.
Light is said to be linearly polarized if its oscillation is confined to one direction (the direction of the oscillation of the electric field is defined as the direction of polarization). Most light sources in nature emit unpolarized light i.e., light consists of many wave trains whose directions of oscillation are completely random.
The most general polarization of a monochromatic light wave, Eq. (1.2), is elliptic. Since the wave is transverse, the endpoint of the electric-field intensity vector precesses along an elliptic trajectory in any plane per pendicular to the direction of propagation.
