![]() ![]() The four methods discussed on this page are: Polarization by Transmission. There are a variety of methods of polarizing light. The process of transforming unpolarized light into polarized light is known as polarization. Only the second, y component is transmitted by the. Polarized light waves are light waves in which the vibrations occur in a single plane. A Polaroid filter is able to polarize light because of the chemical. Thus half the intensity is transmitted, and the transmitted light is linearly polarized in the y direction. The relationship of the Stokes parameters S 0, S 1, S 2, S 3 to intensity and polarization ellipse parameters is shown in the equations below and the figure on the right. intensity and with vibrations in a single plane it emerges as polarized light. Depiction of the polarization states on Poincaré sphere ![]() The Poincaré sphere is the parametrisation of the last three Stokes' parameters in spherical coordinates. The original Stokes paper was discovered independently by Francis Perrin in 1942 and by Subrahamanyan Chandrasekhar in 1947, who named it as the Stokes parameters.ĭefinitions Polarisation ellipse, showing the relationship to the Poincaré sphere parameters ψ and χ. The effect of an optical system on the polarization of light can be determined by constructing the Stokes vector for the input light and applying Mueller calculus, to obtain the Stokes vector of the light leaving the system. They were defined by George Gabriel Stokes in 1852, as a mathematically convenient alternative to the more common description of incoherent or partially polarized radiation in terms of its total intensity ( I), (fractional) degree of polarization ( p), and the shape parameters of the polarization ellipse. The Stokes parameters are a set of values that describe the polarization state of electromagnetic radiation. Set of values that describe the polarization state of electromagnetic radiation The Stokes I, Q, U and V parameters ![]()
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