Diffraction from a Single slit - The single slit diffraction is illustrated via the use of finite-difference time-domain (FDTD) simulation in which slits with various widths are illuminated by electromagnetic plane waves at a single frequency.Powder Diffraction - Powder diffraction is a scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization of materials.This can be used to identify atoms and the crystalline form X-Ray Diffraction - X-ray diffraction (XRD) is a tool for characterizing arrangement of atoms in crystals and distances between crystal faces.Electron diffraction - Electron diffraction refers to the wave nature of electrons.Fast electrons are diffracted from a polycrystalline layer of graphite.Sound diffraction - This ia a process whereby sound waves can diffract around objects,which is why you can still hear someone calling even when hiding behind a tree.water diffraction - is the diffraction of water waves passing through a slit.Diffraction of light - is the bending of light as it passes the edge of an object.Amplitude: amplitude of a wave is a measure of how big its oscillation is.Frequency:is the number of occurrences of a repeating event per unit time.Radiation:Radiation is energy that comes from a source and travels through some material or through space.Interference*: interference* is a phenomenon in which two waves superimpose to form a resultant wave of greater or lower amplitude.Fringes :the edge and outside boundary of something.Waves : wave is a disturbance or oscillation that travels through space time, accompanied by a transfer of energy. Aperture : Aperture is an optical terminology,it layman's term it is called different names such as an opening, hole, or gap.It often refers to an opening in which light is allowed to pass in optical systems such as cameras and lasers.Italian scientist Francesco Maria Grimaldi originated the word "diffraction".He was the first to record accurate observations of the phenomenon(diffraction) in the year 1665.Here are the list of the scientist that has contributed in the study of diffractionĭiffraction occurs when light(beam/ray of light) or other system of waves such as (water waves, sound, electromagnetic waves ( electromagnetic radiation), and small moving particles such as atoms, neutrons, and electrons, which show wavelike properties) passes sharp edges or goes through narrow slits(aperture), the rays are deflected(spread out) and produce fringes of light and dark bands.ĭiffraction effects are classified into either Fresnel or Fraunhofer types.įresnel diffraction is concerned mainly with what happens to light in the immediate neighborhood of a diffracting object or aperture, so is only of interest when the illumination source is close by.įraunhofer diffraction is the light-spreading effect of an aperture when the aperture (or object) is lit by plane waves, i.e., waves that effectively come from a source that is infinitely far away. THE BRAINS BEHIND THE DISCOVERY AND STUDY OF DIFFFRACTION Masinde Masinde Asuquo Uduak Peter Kudaisi Mobolaji
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