• Thumbnail for Huygens–Fresnel principle
    The HuygensFresnel principle (named after Dutch physicist Christiaan Huygens and French physicist Augustin-Jean Fresnel) states that every point on a...
    24 KB (3,051 words) - 07:08, 19 February 2024
  • Thumbnail for Christiaan Huygens
    diffraction effects of light in 1821. Today this principle is known as the HuygensFresnel principle. Huygens invented the pendulum clock in 1657, which he...
    134 KB (14,062 words) - 15:51, 23 June 2024
  • Thumbnail for Huygens principle of double refraction
    Huygens principle of double refraction, named after Dutch physicist Christiaan Huygens, explains the phenomenon of double refraction observed in uniaxial...
    17 KB (2,048 words) - 15:29, 9 July 2024
  • HuygensFresnel principle is derived by the Fresnel–Kirchhoff diffraction formula. Kirchhoff's integral theorem, sometimes referred to as the Fresnel–Kirchhoff...
    23 KB (3,742 words) - 19:01, 11 June 2023
  • Thumbnail for Surface equivalence principle
    equivalence principle, Huygens' equivalence principle or simply as the equivalence principle. Being a more rigorous reformulation of the HuygensFresnel principle...
    12 KB (1,186 words) - 19:12, 11 May 2024
  • Thumbnail for Diffraction
    classical physics, the diffraction phenomenon is described by the HuygensFresnel principle that treats each point in a propagating wavefront as a collection...
    49 KB (6,329 words) - 21:14, 22 May 2024
  • particle-like rays of geometrical optics with the wavefronts of HuygensFresnel principle. [Maupertuis] ... thus pointed to that remarkable analogy between...
    32 KB (4,043 words) - 14:48, 17 June 2024
  • Thumbnail for Augustin-Jean Fresnel
    lantern Fresnel lens Fresnel number Fresnel rhomb Fresnel zone Fresnel zone antenna Fresnel's wave surface Fresnel zone plate HuygensFresnel principle Linear...
    198 KB (26,127 words) - 19:02, 1 June 2024
  • Thumbnail for Fermat's principle
    Huygens' principle, and is part of the explanation of Fermat's principle. But it can also be shown that the geometric construction by which Huygens tried...
    61 KB (8,178 words) - 01:26, 19 May 2024
  • Thumbnail for Treatise on Light
    Treatise on Light (category Books by Christiaan Huygens)
    itself the origin of a secondary spherical wave, a principle known today as the HuygensFresnel principle. The book is considered a pioneering work of theoretical...
    16 KB (1,931 words) - 18:06, 10 December 2023
  • Thumbnail for Reflection (physics)
    to give specular reflection and refraction, according to the HuygensFresnel principle. In the case of dielectrics such as glass, the electric field...
    16 KB (2,129 words) - 04:12, 17 June 2024
  • known as diffraction. These effects can be modelled using the HuygensFresnel principle; Huygens postulated that every point on a wavefront acts as a source...
    24 KB (3,521 words) - 09:04, 22 February 2024
  • Thumbnail for Point spread function
    fronts with uniform intensity everywhere on the spheres (see HuygensFresnel principle). Such a source of uniform spherical waves is shown in the figure...
    24 KB (3,265 words) - 14:04, 25 June 2024
  • Thumbnail for Optics
    magnetic vectors. The HuygensFresnel equation is one such model. This was derived empirically by Fresnel in 1815, based on Huygens' hypothesis that each...
    106 KB (12,848 words) - 05:32, 27 May 2024
  • Thumbnail for Wavefront
    classical physics, the diffraction phenomenon is described by the HuygensFresnel principle that treats each point in a propagating wavefront as a collection...
    11 KB (1,418 words) - 05:27, 12 July 2024
  • Thumbnail for Snell's law
    Huygens showed how Snell's law of sines could be explained by, or derived from, the wave nature of light, using what we have come to call the Huygens–Fresnel...
    27 KB (3,933 words) - 18:16, 23 June 2024
  • Thumbnail for Arago spot
    increases with light intensity. At the heart of Fresnel's wave theory is the HuygensFresnel principle, which states that every unobstructed point of a...
    32 KB (4,178 words) - 18:26, 24 May 2024
  • or superposition, of plane waves. It has some parallels to the HuygensFresnel principle, in which the wavefront is regarded as being made up of a combination...
    73 KB (12,527 words) - 01:04, 24 May 2024
  • Thumbnail for Hamilton's optico-mechanical analogy
    analogy is closely related to Fermat's principle and thus to the HuygensFresnel principle. Fermat's principle states that the rays between wavefronts...
    14 KB (1,851 words) - 00:36, 4 December 2023
  • of: Huygens law (pendulums) Huygens law Huygens–Steiner theorem HuygensFresnel principle Huygens' principle, see HuygensFresnel principle Huygens eyepiece...
    3 KB (206 words) - 18:57, 16 March 2024
  • aperture increases focus and lowers resolution and vice versa. The HuygensFresnel principle describes diffraction of wave propagation between two fields....
    6 KB (1,029 words) - 23:10, 3 May 2023
  • Thumbnail for Wavelet
    classical physics, the diffraction phenomenon is described by the HuygensFresnel principle that treats each point in a propagating wavefront as a collection...
    52 KB (7,215 words) - 23:15, 8 July 2024
  • Thumbnail for Diffraction grating
    optical formulas, the grating equation can be derived by using the HuygensFresnel principle, stating that each point on a wavefront of a propagating wave...
    49 KB (5,810 words) - 02:07, 28 June 2024
  • Thumbnail for Directional sound
    analysis relies only on the aperture function of the source, per the HuygensFresnel principle. The ultrasonic devices achieve high directivity by modulating...
    5 KB (653 words) - 23:04, 22 July 2023
  • Thumbnail for Siméon Denis Poisson
    opticist Augustin-Jean Fresnel submitted a thesis explaining diffraction derived from analysis of both the HuygensFresnel principle and Young's double slit...
    34 KB (4,390 words) - 13:36, 11 July 2024
  • Thumbnail for Northrop B-2 Spirit
    would also increase the infrared signature. According to the HuygensFresnel principle, even a very flat plate would still reflect radar waves, though...
    120 KB (12,272 words) - 15:15, 5 July 2024
  • Thumbnail for Refraction
    atmosphere. Birefringence (double refraction) Geometrical optics HuygensFresnel principle List of indices of refraction Negative refraction Reflection Schlieren...
    21 KB (2,576 words) - 20:44, 14 April 2024
  • Thumbnail for Wave field synthesis
    virtual source remains at fixed starting point. WFS is based on the HuygensFresnel principle, which states that any wavefront can be regarded as a superposition...
    15 KB (1,941 words) - 05:38, 2 February 2024
  • Thumbnail for Double-slit experiment
    behaviour of light can be modelled using classical wave theory. The HuygensFresnel principle is one such model; it states that each point on a wavefront generates...
    76 KB (8,557 words) - 04:07, 10 May 2024
  • Thumbnail for Phased array
    Electronics portal Aperture synthesis History of smart antennas HuygensFresnel principle Interferometric synthetic-aperture radar Inverse synthetic-aperture...
    46 KB (5,144 words) - 20:43, 17 June 2024