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  2. Reflection (physics) - Wikipedia

    en.wikipedia.org/wiki/Reflection_(physics)

    Reflection of light is either specular (mirror-like) or diffuse (retaining the energy, but losing the image) depending on the nature of the interface.In specular reflection the phase of the reflected waves depends on the choice of the origin of coordinates, but the relative phase between s and p (TE and TM) polarizations is fixed by the properties of the media and of the interface between them.

  3. Diffuse reflection - Wikipedia

    en.wikipedia.org/wiki/Diffuse_reflection

    Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection.

  4. Helmholtz reciprocity - Wikipedia

    en.wikipedia.org/wiki/Helmholtz_reciprocity

    A ray of light proceeding from point 1 arrives at point 2 after suffering any number of refractions, reflections, &c. At point 1 let any two perpendicular planes a 1, b 1 be taken in the direction of the ray; and let the vibrations of the ray be divided into two parts, one in each of these planes.

  5. Specular reflection - Wikipedia

    en.wikipedia.org/wiki/Specular_reflection

    Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. [ 1 ] The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by ...

  6. Corpuscular theory of light - Wikipedia

    en.wikipedia.org/wiki/Corpuscular_theory_of_light

    In part correct, [2] being able to successfully explain refraction, reflection, rectilinear propagation and to a lesser extent diffraction, the theory would fall out of favor in the early nineteenth century, as the wave theory of light amassed new experimental evidence. [3] The modern understanding of light is the concept of wave-particle duality.

  7. Total internal reflection - Wikipedia

    en.wikipedia.org/wiki/Total_internal_reflection

    Although total internal reflection can occur with any kind of wave that can be said to have oblique incidence, including (e.g.) microwaves [1] and sound waves, [2] it is most familiar in the case of light waves. Total internal reflection of light can be demonstrated using a semicircular-cylindrical block of common glass or acrylic glass.

  8. Light - Wikipedia

    en.wikipedia.org/wiki/Light

    He did, however, explain the phenomenon of the diffraction of light (which had been observed by Francesco Grimaldi) by allowing that a light particle could create a localised wave in the aether. Newton's theory could be used to predict the reflection of light, but could only explain refraction by incorrectly assuming that light accelerated upon ...

  9. Reflection coefficient - Wikipedia

    en.wikipedia.org/wiki/Reflection_coefficient

    In telecommunications and transmission line theory, the reflection coefficient is the ratio of the complex amplitude of the reflected wave to that of the incident wave. The voltage and current at any point along a transmission line can always be resolved into forward and reflected traveling waves given a specified reference impedance Z 0.