Diffraction limit

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

dif·frac·tion (d

-fr

Change in the directions and intensities of a group of waves after passing by an obstacle or through an aperture.

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.

diffraction [dĭ-frak´shun]

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

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.

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.

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absorption spectrum broad-spectrum crystallography di- dia- diffraction fringes diffraction halo disc electromagnetic spectrum Franklin Fresnel zone function halo halometer hologram lens limit of resolution optic atrophy optics	Researchers have circumvented the diffraction limit before. Sharper than expected by Science News For a microscope using visible light (400-700 nm), the diffraction limit is roughly 250 nm. Market profile: near-field scanning microscopy by Instrument Business Outlook 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. Nano-optics for atomic-scale optical resolution. (General ... by Journal of Research of the National Institute of Standards and Technology	difenoxin Diff-Quik stain difference differential differential absorption differential blood count differential count differential diagnosis differential force differential growth differential leukocyte count differential stain differential threshold differential ureteralcatheterization test differential white blood cell count differentiate differentiating agent differentiation differentiation therapy Difficult Airway difficult eruption Difficult Patient diffraction diffraction fringes diffraction halo Diffraction limit diffusate diffuse diffuse abscess diffuse alveolar damage diffuse angiokeratoma diffuse axonal injury diffuse cataract diffuse cutaneous leishmaniasis diffuse emphysema diffuse erythema Diffuse Esophageal Spasm diffuse fibrosing alveolitis diffuse goiter diffuse hypersensitivity pneumonia diffuse hypertrophy-breast diffuse idiopathic skeletal hyperostosis diffuse interstitial pulmonary fibrosis diffuse ischemic injury diffuse large B-cell lymphoma diffuse lipoma diffuse lymphoma diffuse mesangial proliferation diffuse myelitis diffuse myocardial fibrosis diffuse noxious inhibitory control	difflugia Diffmk Diffmk Diffmk Difform Difformity diffract diffract diffract diffracted diffracted diffracted diffracted wave Diffracted X-Ray diffracting diffraction diffraction diffraction diffraction analysis Diffraction Anomalous Fine Structure Diffraction Enhanced Imaging diffraction fringes diffraction grating diffraction grating diffraction grating Diffraction Grating Evaluation Facility diffraction gratings diffraction gratings diffraction halo diffraction instrument Diffraction limit Diffraction limited Diffraction limited Diffraction limited beam diffraction loading diffraction loss diffraction mottle Diffraction of light Diffraction of light Diffraction of light Diffraction of Particles Diffraction of Radio Waves Diffraction of Waves Diffraction of X Rays Diffraction pattern Diffraction pattern Diffraction pattern Diffraction Products Inc. diffraction propagation diffraction ring diffraction scattering Diffraction spectrum Diffraction spectrum diffraction symmetry diffraction velocimeter diffraction zone Diffraction-limited Diffraction-Limited Spectro-Polarimeter diffractional pulse-height discriminator diffractions diffractions

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References in periodicals archive

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absorption spectrum
broad-spectrum
crystallography
di-
dia-
diffraction fringes
diffraction halo
disc
electromagnetic spectrum
Franklin
Fresnel zone
function
halo
halometer
hologram
lens
limit of resolution
optic atrophy
optics

Researchers have circumvented the diffraction limit before.

Sharper than expected by Science News

For a microscope using visible light (400-700 nm), the diffraction limit is roughly 250 nm.

Market profile: near-field scanning microscopy by Instrument Business Outlook

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.

Nano-optics for atomic-scale optical resolution. (General ... by Journal of Research of the National Institute of Standards and Technology

differential absorption

differential blood count

differential count

differential diagnosis

differential force

differential growth

differential leukocyte count