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diffraction
(redirected from Diffraction limit)

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
dif·frac·tion  (d-frkshn)
n.
Change in the directions and intensities of a group of waves after passing by an obstacle or through an aperture whose size is approximately the same as the wavelength of the waves.

[New Latin diffrcti, diffrctin-, from Latin diffrctus, past participle of diffringere : dis-, apart; see dis- + frangere, to break; see bhreg- in Indo-European roots.]

diffraction [dɪˈfrækʃən]
n
1. (Physics / General Physics) Physics a deviation in the direction of a wave at the edge of an obstacle in its path
2. (Physics / General Physics) any phenomenon caused by diffraction and interference of light, such as the formation of light and dark fringes by the passage of light through a small aperture
3. (Physics / General Physics) deflection of sound waves caused by an obstacle or by nonhomogeneity of a medium
[from New Latin diffractiō a breaking to pieces, from Latin diffringere to shatter, from dis- apart + frangere to break]

diffraction  (d-frkshn)
The bending and spreading of a wave, such as a light wave, around the edge of an object. See more at wave.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.diffraction - when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bandsdiffraction - when light passes sharp edges or goes through narrow slits the rays are deflected and produce fringes of light and dark bands
optical phenomenon - a physical phenomenon related to or involving light
X-ray diffraction - the scattering of X rays by the atoms of a crystal; the diffraction pattern shows structure of the crystal
Translations
diffraction [dɪˈfrækʃən] Ndifracción f
diffraction
nDiffraktion f, → Beugung f
diffraction [dɪˈfrækʃn] n (Phys) → diffrazione f


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Researchers have circumvented the diffraction limit before.
For a microscope using visible light (400-700 nm), the diffraction limit is roughly 250 nm.
For sharp tips, the electromagnetic coupling was confined to a lateral range of a few nanometers, a factor of 100 better than the diffraction limit of conventional optics.
 
 
 
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