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  2. Double-slit experiment - Wikipedia

    en.wikipedia.org/wiki/Double-slit_experiment

    Double-slit experiment. Photons or matter (like electrons) produce an interference pattern when two slits are used. Light from a green laser passing through two slits 0.4 mm wide and 0.1 mm apart. In modern physics, the double-slit experiment demonstrates that light and matter can satisfy the seemingly incongruous classical definitions for both ...

  3. Young's interference experiment - Wikipedia

    en.wikipedia.org/wiki/Young's_interference...

    Unlike the modern double-slit experiment, Young's experiment reflects sunlight (using a steering mirror) through a small hole, and splits the thin beam in half using a paper card. [6] [8] [9] He also mentions the possibility of passing light through two slits in his description of the experiment: Modern illustration of the double-slit experiment

  4. Thomas Young (scientist) - Wikipedia

    en.wikipedia.org/wiki/Thomas_Young_(scientist)

    With Young's interference experiment, the predecessor of the double-slit experiment, he demonstrated interference in the context of light as a wave. Plate from "Lectures" of 1802 (RI), pub. 1807. Young, speaking on 24 November 1803, to the Royal Society of London, began his now-classic description of the historic experiment: [35]

  5. Higher order coherence - Wikipedia

    en.wikipedia.org/wiki/Higher_order_coherence

    Schematic diagram for the setup of the Young's Double Slit Experiment. In the double slit experiment, originally by Thomas Young in 1801, light from a light source is allowed to pass through two pinholes separated by some distance, and a screen is placed some distance away from the pinholes where the interference between the light waves is ...

  6. Observer effect (physics) - Wikipedia

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

    Scientists. v. t. e. In physics, the observer effect is the disturbance of an observed system by the act of observation. [1][2] This is often the result of utilising instruments that, by necessity, alter the state of what they measure in some manner. A common example is checking the pressure in an automobile tire, which causes some of the air ...

  7. Wave interference - Wikipedia

    en.wikipedia.org/wiki/Wave_interference

    In wavefront-division systems, the wave is divided in space—examples are Young's double slit interferometer and Lloyd's mirror. Interference can also be seen in everyday phenomena such as iridescence and structural coloration. For example, the colours seen in a soap bubble arise from interference of light reflecting off the front and back ...

  8. Introduction to quantum mechanics - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_quantum...

    The double-slit experiment for a classical particle, a wave, and a quantum particle demonstrating wave-particle duality. In the double-slit experiment, as originally performed by Thomas Young in 1803, [32] and then Augustin Fresnel a decade later, [32] a beam of light is directed through two narrow, closely spaced slits, producing an ...

  9. Common-path interferometer - Wikipedia

    en.wikipedia.org/wiki/Common-path_interferometer

    A common-path interferometer is a class of interferometers in which the reference beam and sample beams travel along the same path. Examples include the Sagnac interferometer, Zernike phase-contrast interferometer, and the point diffraction interferometer. A common-path interferometer is generally more robust to environmental vibrations than a ...