Arago spot
In optics, the Arago spot, Poisson spot, or Fresnel spot is a bright point that appears at the center of a circular object's shadow due to Fresnel diffraction. This spot played an important role in the discovery of the wave nature of light and is a common way to demonstrate that light behaves as a wave (for example, in undergraduate physics laboratory exercises). where d is the diameter of the circular object,ℓ is the distance between the object and the screen, andλ is the wavelength of the source. Finally, the edge of the circular object must be sufficiently smooth.
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1723 in scienceAragoArago telescopeAugustin-Jean FresnelChristiaan HuygensEinstein's thought experimentsExperimentum crucisFizeau–Foucault apparatusFrançois AragoFrench Academy of SciencesFresnel bright spotFresnel diffractionGiacomo F. MaraldiHuygens–Fresnel principleIndex of optics articlesIndex of physics articles (A)Joseph-Nicolas DelisleLaser beam profilerList of examples of Stigler's lawList of experimentsList of laser articlesList of things named after Siméon Denis PoissonNear-field opticsNew Worlds MissionPoisson's SpotPoisson's bright spotPoisson's spotPoisson SpotPoisson bright spotPoisson spotPoisson’s spotScientific phenomena named after peopleSiméon Denis PoissonSpacetimeSpot of AragoSpot of aragoTimeline of electromagnetism and classical opticsWave–particle dualityYoung's interference experimentZone plate
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Arago spot
In optics, the Arago spot, Poisson spot, or Fresnel spot is a bright point that appears at the center of a circular object's shadow due to Fresnel diffraction. This spot played an important role in the discovery of the wave nature of light and is a common way to demonstrate that light behaves as a wave (for example, in undergraduate physics laboratory exercises). where d is the diameter of the circular object,ℓ is the distance between the object and the screen, andλ is the wavelength of the source. Finally, the edge of the circular object must be sufficiently smooth.
has abstract
En optique, on appelle tache d ...... lumière ne peuvent expliquer.
@fr
En óptica, se conoce como punt ...... nda con la teoría corpuscular.
@es
In optics, the Arago spot, Poi ...... ere should be no light at all.
@en
È un punto all'orizzonte in cu ...... ale a causa della riflessione.
@it
Пляма Араго — Пуассона (іноді ...... а становить кругову перешкоду.
@uk
Пятно Араго — Пуассона (иногда ...... пользу новой волновой теории.
@ru
アラゴスポット(Arago Spot)、もしくはポアソンの輝 ...... 光の粒子説ではアラゴスポットの存在を説明することができない。
@ja
泊松光斑，也称阿拉戈光斑。是一种由于光的衍射而产生的一种光学 ...... 。 除光外，在其他物质流的衍射现象中也能发现泊松亮斑的存在。
@zh
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En optique, on appelle tache d ...... oivent être suffisamment nets.
@fr
En óptica, se conoce como punt ...... nda con la teoría corpuscular.
@es
In optics, the Arago spot, Poi ...... t must be sufficiently smooth.
@en
È un punto all'orizzonte in cu ...... ale a causa della riflessione.
@it
Пляма Араго — Пуассона (іноді ...... бласті його геометричної тіні.
@uk
Пятно Араго — Пуассона (иногда ...... — Пуассона, оказался весомым
@ru
アラゴスポット(Arago Spot)、もしくはポアソンの輝 ...... ・フィリッポ・マラルディにより発見されていたことを言及した。
@ja
泊松光斑，也称阿拉戈光斑。是一种由于光的衍射而产生的一种光学 ...... 。 除光外，在其他物质流的衍射现象中也能发现泊松亮斑的存在。
@zh
label
Arago spot
@en
Poisson-Fleck
@de
Punto de Arago
@es
Punto di Arago
@it
Tache de Fresnel
@fr
Пляма Пуассона
@uk
Пятно Пуассона
@ru
アラゴスポット
@ja
泊松光斑
@zh