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Polarization   Listen
noun
Polarization  n.  
1.
The act of polarizing; the state of being polarized, or of having polarity.
2.
(Opt.) A peculiar affection or condition of the rays of light or heat, in consequence of which they exhibit different properties in different directions. Note: If a beam of light, which has been reflected from a plate of unsilvered glass at an angle of about 56°, be received upon a second plate of glass similar to the former, and at the same angle of incidence, the light will be readily reflected when the two planes of incidence are parallel to each other, but will not be reflected when the two planes of incidence are perpendicular to each other. The light has, therefore, acquired new properties by reflection from the first plate of glass, and is called polarized light, while the modification which the light has experienced by this reflection is called polarization. The plane in which the beam of light is reflected from the first mirror is called the plane of polarization. The angle of polarization is the angle at which a beam of light must be reflected, in order that the polarization may be the most complete. The term polarization was derived from the theory of emission, and it was conceived that each luminous molecule has two poles analogous to the poles of a magnet; but this view is not now held. According to the undulatory theory, ordinary light is produced by vibrations transverse or perpendicular to the direction of the ray, and distributed as to show no distinction as to any particular direction. But when, by any means, these, vibrations are made to take place in one plane, the light is said to be plane polarized. If only a portion of the vibrations lie in one plane the ray is said to be partially polarized. Light may be polarized by several methods other than by reflection, as by refraction through most crystalline media, or by being transmitted obliquely through several plates of glass with parallel faces. If a beam of polarized light be transmitted through a crystal of quartz in the direction of its axis, the plane of polarization will be changed by an angle proportional to the thickness of the crystal. This phenomenon is called rotatory polarization. A beam of light reflected from a metallic surface, or from glass surfaces under certain peculiar conditions, acquires properties still more complex, its vibrations being no longer rectilinear, but circular, or elliptical. This phenomenon is called circular or elliptical polarization.
3.
(Elec.) An effect produced upon the plates of a voltaic battery, or the electrodes in an electrolytic cell, by the deposition upon them of the gases liberated by the action of the current. It is chiefly due to the hydrogen, and results in an increase of the resistance, and the setting up of an opposing electro-motive force, both of which tend materially to weaken the current of the battery, or that passing through the cell.






Collaborative International Dictionary of English 0.48








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"Polarization" Quotes from Famous Books



... those of sex dually expressed as two poles of one law or principle as taught by Hermetic Philosophy before the law of polarization of spirit into matter, and matter back into spirit, ...
— Within the Temple of Isis • Belle M. Wagner

... get to do it, that's all. I can't think that with the autopilot blasting out an 'on course'." He punched the veering-jet controls. It served men perfectly. The ship ignored him, homed on the beam. The ship computed velocity, altitude, gravity, magnetic polarization, windage; used and balanced and adjusted for them all. It adjusted for interference from the manual controls. It served men ...
— Breaking Point • James E. Gunn

... surface coating of tin. The iron has become magnetized by induction, and the Earth repels the can just as it repels us. It will follow us to the dead-line, and probably on to Mars, unless the sheet-iron loses its polarization. If we had cast out a thing of solid iron, it would rush ahead of us, instead of falling a little behind, as this does, for it would have no dead weight to carry. But we could not put such a thing out of the rear end, for no force would make it fall that way. If we put it out ...
— Pharaoh's Broker - Being the Very Remarkable Experiences in Another World of Isidor Werner • Ellsworth Douglass

... than the present society differs from that of the Middle Ages, because the bourgeois world has retained the same foundation, individualism, as the society which preceded it, while the socialist world will have a fundamentally different polarization. ...
— Socialism and Modern Science (Darwin, Spencer, Marx) • Enrico Ferri

... tremendous inflow of Divine Energy. It draws close to the centre of all-power, wisdom and love, and drinks deep of the living waters of life so that even the very face or flesh begins to shine under the influence of this self-polarization—if I may be permitted to use this word—through prayer. Here is the causa nuxus between a prayer and its sure reply. Do you remember what Lord Rosebery said of the great Puritan Mystic Oliver Cromwell? ...
— The Doctrine and Practice of Yoga • A. P. Mukerji



Words linked to "Polarization" :   optical phenomenon, polarize, condition, status



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