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  2. Iridescence - Wikipedia

    en.wikipedia.org/wiki/Iridescence

    Iridescence is caused by wave interference of light in microstructures or thin films. Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. Pearlescence is a related effect where some or most of the reflected light is white. The term pearlescent is used to describe certain paint ...

  3. Diffraction - Wikipedia

    en.wikipedia.org/wiki/Diffraction

    Diffraction is the same physical effect as interference, but interference is typically applied to superposition of a few waves and the term diffraction is used when many waves are superposed. [1]: 433 Italian scientist Francesco Maria Grimaldi coined the word diffraction and was the first to record accurate observations of the phenomenon in 1660.

  4. Sagnac effect - Wikipedia

    en.wikipedia.org/wiki/Sagnac_effect

    The Sagnac effect, also called Sagnac interference, named after French physicist Georges Sagnac, is a phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called a ring interferometer or Sagnac interferometer. A beam of light is split and the two beams are made to follow the same ...

  5. Bragg's law - Wikipedia

    en.wikipedia.org/wiki/Bragg's_law

    In many areas of science, Bragg's law, Wulff–Bragg's condition, or Laue–Bragg interference are a special case of Laue diffraction, giving the angles for coherent scattering of waves from a large crystal lattice. It describes how the superposition of wave fronts scattered by lattice planes leads to a strict relation between the wavelength ...

  6. Wave interference - Wikipedia

    en.wikipedia.org/wiki/Wave_interference

    In physics, interference is a phenomenon in which two coherent waves are combined by adding their intensities or displacements with due consideration for their phase difference. The resultant wave may have greater intensity ( constructive interference ) or lower amplitude ( destructive interference ) if the two waves are in phase or out of ...

  7. Newton's rings - Wikipedia

    en.wikipedia.org/wiki/Newton's_rings

    Newton's rings is a phenomenon in which an interference pattern is created by the reflection of light between two surfaces, typically a spherical surface and an adjacent touching flat surface. It is named after Isaac Newton , who investigated the effect in 1666.

  8. Thin-film interference - Wikipedia

    en.wikipedia.org/wiki/Thin-film_interference

    Thin-film interference caused by water-lipid boundary. Thin-film interference is a natural phenomenon in which light waves reflected by the upper and lower boundaries of a thin film interfere with one another, increasing reflection at some wavelengths and decreasing it at others. When white light is incident on a thin film, this effect produces ...

  9. Optical contact bonding - Wikipedia

    en.wikipedia.org/wiki/Optical_contact_bonding

    It was not until the 19th century that objects were made with such precision that the binding phenomenon was observed. The bond was referred to as "ansprengen" in German language. By 1900, optical contact bonding was being employed in the construction of optical prisms, and the following century saw further research into the phenomenon at the ...