polarization The alignment of the electric fields of emitted photons, which are generally emitted with random orientations.
polarization
a state in which the directions of the electric or magnetic field in an electromagnetic wave changes in a regular pattern; light from celestial objects is often polarized
polycyclic aromatic hydrocarbons ...
Polarization
The cosmic microwave background is polarized at the level of a few microkelvins. There are two types of polarization, called E-modes and B-modes.
Polarization: The action or process of affecting radiation and especially light so that the vibrations of the wave assume a definite form.
Polarization is a property of waves that describes the orientation of their oscillations.
polarization
A special property of light; light has three properties, brightness, color and polarization. Polarization is a condition in which the planes of vibration of the various rays in a light beam are at least partially aligned.
Polarization
Restriction of the vibrations in a transverse wave. Normally in a transverse wave the vibrations can have any direction in the plane perpendicular to the direction of propagation.
[edit] Polarization
Main article: Polarization
A wave is polarized if it can only oscillate in one direction. The polarization of a transverse wave describes the direction of oscillation in the plane perpendicular to the direction of travel.
Polarization can be imagined as an extra direction to all light rays that is at right angles to the ray's direction of travel.
Polarization is the sum of the E-plane orientations over time projected onto an imaginary plane perpendicular to the direction of motion of the radio wave.
polarization - (n.)
The arrangement of electromagnetic waves so that all the planes in which the waves are oscillating are parallel to each other.
population I - (n.) ...
The polarization in a distinctly oblique direction, however, is not perfect, a feature for which more than one reas9n may be put forward.
(via polarization)
Various of these dominate at different wavelengths, so we may begin to decompose galaxies into constituents even if we have only the integrated radiation to work with. Consider some schematic broad-band galaxy spectra.
A type of polarization of electromagnetic radiation in which the plane of polarization rotates uniformly round the axis as the ray progresses. [DC99]
Cislunar ...
depolarization (NASA Thesaurus) A decrease in the polarization of an electrode at a specified current density. Used for depolarizers. depressed pole (NASA SP-7, 1965) The celestial pole below the horizon, of opposite name to the latitude.
linear polarization The polarization of an electromagnetic wave radiated by an electric vector that does not rotate but that alternates so as to describe a line. Normally, the vector is oriented either horizontally or vertically.
"With the special polarization capabilities of the SMA we see the shape of the field directly. This is the first textbook example of theoretically predicted magnetic structure," remarked Rao.
Ordinary light from the sun contains light of all different polarizations (the direction of the light wave's electric field).
The polarization and frequency of the return can sense the type of surface.
Navigational radars scan a wide area two to four times per minute. They use very short waves that reflect from earth and stone.
magnetograph A special telescope which analyzes the color and polarization of sunlight in order to measure the magnetic field of the Sun. magnetopause The boundary of the magnetosphere, lying inside the bow shock.
Asymmetrical materials have the power to rotate the plane of polarization of plane-polarized light.
Polarimeters are optical instruments that measure the direction and extent of the polarization of light reflected from their targets.
Some characteristics of blazars are that their light exhibits high optical polarization and that they have high variability with periods of less than a few days.
The GONG data presently consists of 1024 by 1024 pixel intensity images at three different spectral positions within the line with two different polarizations. These three images are processed to produce three primary data images .
WMAP has detected the polarization of the microwave background and derived a time of about 400 million years after the Big Bang for the first stars. The visible light from these first stars will now have been redshifted into the infrared.
Light is characterized not only by wavelength, essentially a temporal quality, but also by state and degree of polarization , a geometric or directional quality, and by intensity, essentially a physical quality.
Such systems are the most extremely polarized objects known (hence their alternative name polars), exhibiting both strong linear and, more significantly, circular polarization.
In 2371, a microscopic singularity passed through the Sol system and exploded, producing a surge of temporal energy which shifted the chroniton particles lodged in the Defiant's ablative armor matrix into a high level of temporal polarization.
Polarization of starlight does not occur by chance. If the light detected by our telescope is polarized, it is because some interstellar matter lies between the emitting object and Earth.
Like SIR-C/X-SAR, AIRSAR transmited and receiveed three radar frequencies in both horizontal and vertical polarizations.
These spacecraft carried cameras and instruments for analyzing the intensities and polarizations of radiation in the visible, ultraviolet, infrared, and radio portions of the electromagnetic spectrum.
The effect is to change the polarization state of the transmitted light. The extent of the change depends on the material and the thickness of the specimen.
Definition: polarimetry: The measurement and study of the polarization of light reflected off of a surface.
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The position of the plane of the polarization (vibrations of the radio emission preferentially being in a plane) and intensity of the radio emission vary with the same period.
These values remained the best available until new techniques for finding albedos (reflectivities) and diameters, based on infrared radiometry and polarization measurements, were introduced beginning about 1970 (see below Size and albedo).
 See also: Time, Light, Field, Second, Energy
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