diffraction

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diffraction

 [dĭ-frak´shun]
the bending or breaking up of a ray of light into its component parts.

dif·frac·tion

(di-frak'shŭn),
Deflection of the rays of light from a straight line in passing by the edge of an opaque body or in passing an obstacle of about the size of the wavelength of the light.
[L. dif- fringo, pp. -fractus, to break in pieces]

diffraction

/dif·frac·tion/ (dĭ-frak´shun) the bending or breaking up of a ray of light into its component parts.

diffraction

[difrak′shən]
Etymology: L, dis, opposite of, frangere, to break
the bending and scattering of wavelengths of light or other radiation as the radiation passes around obstacles or through narrow slits. X-ray diffraction is used in the study of the internal structure of cells. See also refraction.

dif·frac·tion

(di-frak'shŭn)
Deflection of the rays of light from a straight line in passing by the edge of an opaque body or in passing an obstacle of about the size of the wavelength of the light.
[L. dif- fringo, pp. -fractus, to break in pieces]

diffraction

deflection of light rays by their passage from one medium into another, e.g. from air into water

diffraction

Deviation of the direction of propagation of a beam of light, which occurs when the light passes the edge of an obstacle such as a diaphragm, the pupil of the eye or a spectacle frame. There are two consequences of this phenomenon. First, the image of a point source cannot be a point image but a diffraction pattern. This pattern depends upon the shape and size of the diaphragm as well as the wavelength of light. Second, a system of close, parallel and equidistant grooves, slits or lines ruled on a polished surface can produce a light spectrum by diffraction. This is called a diffraction grating. See Airy's disc; diffraction fringes; Maurice's theory.

diffraction

the bending or breaking up of a ray of light into its component parts.

x-ray diffraction
a method used to determine the three-dimensional structure of the single object, e.g. protein molecule, that composes the crystal. Based on recording and analyzing the diffraction pattern of an x-ray beam passing through a crystalline structure, either organic or inorganic.
References in periodicals archive ?
Controlling the neutron beam is necessary, as the size of this beam, together with the size of the measured diffracted beam, defines the volume of the material under study.
Under these conditions, the diffracted field will likewise be composed of mutually incoherent components U(P) and [^U](P), which travel in opposite directions.
The coastline from Colombo to Jaffna peninsular in eastern side of the country was affected by a combination of direct, diffracted and reflected waves.
Phenylboronic acid derivatives in the lattice bind glucose, causing a change in charge distribution and a blue shift, -[DELTA][lambda], in the diffracted light (3).
The X-ray beam enters through the opening and the diffracted rays emerge through a slot in the furnace.
Whereabouts Unknown and Muldoon's The Annals of Chile (1994) are extended eulogies diffracted through a world of things, piling up a wealth of details against time.
Certain parts of the room will be light; others will be dark, the light that was to have gone their way diffracted elsewhere.
Sokolowski sets out to "describe a form of appearance" in each essay, but he supposes that being is the "origin of these forms"; that they are "forms through which being is diffracted at some distance from itself" (p.
The AVS suppresses diffracted sound components, which eliminate howling and ensure clear voice communication.
the device must have a universal structure and shall be equipped with a system for measuring samples in a vacuum and at high temperatures, a system for detecting scattered and diffracted x-rays, an automatic sample changer and software for data evaluation - see specifications below.
To determine the protein's atomic structure, researchers hit frozen crystals of Lsd19 with X-rays at the Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, and analysed how the crystals diffracted the X-rays.