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Arago spot

Index Arago spot

In optics, the Arago spot, Poisson spot, or Fresnel bright spot, is a bright point that appears at the center of a circular object's shadow due to Fresnel diffraction. [1]

58 relations: Addison-Wesley, Albert Einstein, American Physical Society, Annus Mirabilis papers, Aragoscope, Astronomy, Augustin-Jean Fresnel, Bessel function, Cambridge University Press, Circumference, Davisson–Germer experiment, Deuterium, Evolute, Experimentum crucis, François Arago, French Academy of Sciences, Fresnel diffraction, Fresnel number, Fresnel zone, Geometrical optics, Giacomo F. Maraldi, Huygens–Fresnel principle, Intensity (physics), John Wiley & Sons, Joseph-Nicolas Delisle, Laser, Light, Louis de Broglie, Matter wave, Newtonian telescope, Occulting disk, Optical aberration, Optical axis, Optics, Oxford University Press, Pearson Education, Phase (waves), Plane wave, Point source, Point spread function, Polar coordinate system, Quantum mechanics, Secondary mirror, Shadow, Siméon Denis Poisson, Simpson's rule, Star, Thomas Young (scientist), Transmission electron microscopy, Trapezoidal rule, ..., W. W. Norton & Company, Wave interference, Wave–particle duality, Wavefront, Wavelength, Wavelet, Wavenumber, Young's interference experiment. Expand index (8 more) »

Addison-Wesley

Addison-Wesley is a publisher of textbooks and computer literature.

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Albert Einstein

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).

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American Physical Society

The American Physical Society (APS) is the world's second largest organization of physicists.

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Annus Mirabilis papers

The Annus mirabilis papers (from Latin annus mīrābilis, "extraordinary year") are the papers of Albert Einstein published in the Annalen der Physik scientific journal in 1905.

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Aragoscope

An Aragoscope is a theoretical design for a telescope, based on diffraction around the edge of an occluding disc, named after French scientist Francois Arago.

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Astronomy

Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

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Augustin-Jean Fresnel

Augustin-Jean Fresnel (10 May 178814 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton's corpuscular theory, from the late 1830s until the end of the 19th century.

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Bessel function

Bessel functions, first defined by the mathematician Daniel Bernoulli and then generalized by Friedrich Bessel, are the canonical solutions of Bessel's differential equation for an arbitrary complex number, the order of the Bessel function.

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Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

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Circumference

In geometry, the circumference (from Latin circumferentia, meaning "carrying around") of a circle is the (linear) distance around it.

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Davisson–Germer experiment

The Davisson–Germer experiment was a 1923-7 experiment by Clinton Davisson and Lester Germer at Western Electric (later Bell Labs), in which electrons, scattered by the surface of a crystal of nickel metal, displayed a diffraction pattern.

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Deuterium

Deuterium (or hydrogen-2, symbol or, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1).

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Evolute

In the differential geometry of curves, the evolute of a curve is the locus of all its centers of curvature.

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Experimentum crucis

In the sciences, an experimentum crucis (English: crucial experiment or critical experiment) is an experiment capable of decisively determining whether or not a particular hypothesis or theory is superior to all other hypotheses or theories whose acceptance is currently widespread in the scientific community.

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François Arago

Dominique François Jean Arago (Domènec Francesc Joan Aragó), known simply as François Arago (Catalan: Francesc Aragó) (26 February 17862 October 1853), was a French mathematician, physicist, astronomer, freemason, supporter of the carbonari and politician.

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French Academy of Sciences

The French Academy of Sciences (French: Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research.

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Fresnel diffraction

In optics, the Fresnel diffraction equation for near-field diffraction is an approximation of the Kirchhoff–Fresnel diffraction that can be applied to the propagation of waves in the near field.

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Fresnel number

The Fresnel number (F), named after the physicist Augustin-Jean Fresnel, is a dimensionless number occurring in optics, in particular in scalar diffraction theory.

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Fresnel zone

A Fresnel zone, named for physicist Augustin-Jean Fresnel, is one of a series of concentric prolate ellipsoidal regions of space between and around a transmitting antenna and a receiving antenna system.

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Geometrical optics

Geometrical optics, or ray optics, describes light propagation in terms of rays.

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Giacomo F. Maraldi

Giacomo Filippo Maraldi (August 21, 1665 – December 1, 1729) was a French-Italian astronomer and mathematician.

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Huygens–Fresnel principle

The Huygens–Fresnel principle (named after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel) is a method of analysis applied to problems of wave propagation both in the far-field limit and in near-field diffraction.

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Intensity (physics)

In physics, intensity is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.

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John Wiley & Sons

John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.

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Joseph-Nicolas Delisle

Joseph-Nicolas Delisle (4 April 1688 – 11 September 1768) was a French astronomer and cartographer.

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Laser

A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.

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Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.

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Louis de Broglie

Louis Victor Pierre Raymond de Broglie, duke de Broglie (or; 15 August 1892 – 19 March 1987) was a French physicist who made groundbreaking contributions to quantum theory.

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Matter wave

Matter waves are a central part of the theory of quantum mechanics, being an example of wave–particle duality.

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Newtonian telescope

The Newtonian telescope, also called the Newtonian reflector or just the Newtonian, is a type of reflecting telescope invented by the English scientist Sir Isaac Newton (1642–1727), using a concave primary mirror and a flat diagonal secondary mirror.

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Occulting disk

An occulting disk is a small disk used in a telescope to block the view of a bright object in order to allow observation of a fainter one.

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Optical aberration

Aberration in optics refers to a defect in a lens such that light is not focused to a point, but is spread out over some region of space, and hence an image formed by a lens with aberration is blurred or distorted, with the nature of the distortion depending on the type of aberration.

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Optical axis

An optical axis is a line along which there is some degree of rotational symmetry in an optical system such as a camera lens or microscope.

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Optics

Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

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Oxford University Press

Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.

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Pearson Education

Pearson Education (see also Pearson PLC) is a British-owned education publishing and assessment service to schools and corporations, as well as directly to students.

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Phase (waves)

Phase is the position of a point in time (an instant) on a waveform cycle.

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Plane wave

In the physics of wave propagation, a plane wave (also spelled planewave) is a wave whose wavefronts (surfaces of constant phase) are infinite parallel planes.

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Point source

A point source is a single identifiable localised source of something.

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Point spread function

The point spread function (PSF) describes the response of an imaging system to a point source or point object.

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Polar coordinate system

In mathematics, the polar coordinate system is a two-dimensional coordinate system in which each point on a plane is determined by a distance from a reference point and an angle from a reference direction.

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Quantum mechanics

Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.

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Secondary mirror

A secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope.

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Shadow

A shadow is a dark area where light from a light source is blocked by an opaque object.

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Siméon Denis Poisson

Baron Siméon Denis Poisson FRS FRSE (21 June 1781 – 25 April 1840) was a French mathematician, engineer, and physicist, who made several scientific advances.

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Simpson's rule

In numerical analysis, Simpson's rule is a method for numerical integration, the numerical approximation of definite integrals.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Thomas Young (scientist)

Thomas Young FRS (13 June 1773 – 10 May 1829) was a British polymath and physician.

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Transmission electron microscopy

Transmission electron microscopy (TEM, also sometimes conventional transmission electron microscopy or CTEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image.

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Trapezoidal rule

In mathematics, and more specifically in numerical analysis, the trapezoidal rule (also known as the trapezoid rule or trapezium rule) is a technique for approximating the definite integral The trapezoidal rule works by approximating the region under the graph of the function f(x) as a trapezoid and calculating its area.

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W. W. Norton & Company

W.

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Wave interference

In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.

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Wave–particle duality

Wave–particle duality is the concept in quantum mechanics that every particle or quantic entity may be partly described in terms not only of particles, but also of waves.

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Wavefront

In physics, a wavefront is the locus of points characterized by propagation of positions of identical phase: propagation of a point in 1D, a curve in 2D or a surface in 3D.

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Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

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Wavelet

A wavelet is a wave-like oscillation with an amplitude that begins at zero, increases, and then decreases back to zero.

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Wavenumber

In the physical sciences, the wavenumber (also wave number or repetency) is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance.

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Young's interference experiment

Young's interference experiment, also called Young's double-slit interferometer, was the original version of the modern double-slit experiment, performed at the beginning of the nineteenth century by Thomas Young.

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References

[1] https://en.wikipedia.org/wiki/Arago_spot

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