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  2. Wave interference - Wikipedia

    en.wikipedia.org/wiki/Wave_interference

    The resultant wave may have greater intensity (constructive interference) or lower amplitude (destructive interference) if the two waves are in phase or out of phase, respectively. Interference effects can be observed with all types of waves, for example, light , radio , acoustic , surface water waves , gravity waves , or matter waves as well ...

  3. Double-slit experiment - Wikipedia

    en.wikipedia.org/wiki/Double-slit_experiment

    The interference pattern between the two electron waves could then be observed. [67] In 2017, researchers performed the double-slit experiment using light-induced field electron emitters. With this technique, emission sites can be optically selected on a scale of ten nanometers.

  4. Faraday cage - Wikipedia

    en.wikipedia.org/wiki/Faraday_cage

    The reception or transmission of radio waves, a form of electromagnetic radiation, to or from an antenna within a Faraday cage is heavily attenuated or blocked by the cage; however, a Faraday cage has varied attenuation depending on wave form, frequency, or the distance from receiver or transmitter, and receiver or transmitter power.

  5. Interferometry - Wikipedia

    en.wikipedia.org/wiki/Interferometry

    Figure 1. The light path through a Michelson interferometer.The two light rays with a common source combine at the half-silvered mirror to reach the detector. They may either interfere constructively (strengthening in intensity) if their light waves arrive in phase, or interfere destructively (weakening in intensity) if they arrive out of phase, depending on the exact distances between the ...

  6. White light interferometry - Wikipedia

    en.wikipedia.org/wiki/White_light_interferometry

    This works because when two waves combine, the resulting pattern is determined by the phase difference between the two waveswaves that are in phase will undergo constructive interference while waves that are out of phase will undergo destructive interference. While white light interferometry is not new, combining old interferometry ...

  7. Atom interferometer - Wikipedia

    en.wikipedia.org/wiki/Atom_interferometer

    An atom interferometer uses the wave-like nature of atoms in order to produce interference. In atom interferometers, the roles of matter and light are reversed compared to the laser based interferometers, i.e. the beam splitter and mirrors are lasers while the source emits matter waves (the atoms) rather than light.

  8. Interferometric visibility - Wikipedia

    en.wikipedia.org/wiki/Interferometric_visibility

    The interferometric visibility (also known as interference visibility and fringe visibility, or just visibility when in context) is a measure of the contrast of interference in any system subject to wave superposition. Examples include as optics, quantum mechanics, water waves, sound waves, or electrical

  9. Line-of-sight propagation - Wikipedia

    en.wikipedia.org/wiki/Line-of-sight_propagation

    The rays or waves may be diffracted, refracted, reflected, or absorbed by the atmosphere and obstructions with material and generally cannot travel over the horizon or behind obstacles. In contrast to line-of-sight propagation, at low frequency (below approximately 3 MHz ) due to diffraction , radio waves can travel as ground waves , which ...