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It was the English scientist Thomas Young(1773-1829) who, in 1800, performed one of the first demonstrations to propose an experiment to produce the interference effects of light in a device called a double slit Young interferometer, as shown in Figure 6, the which allowed him to describe a method for determining a location of maximum interference pattern, that is, the light regions (constructive interference). interference fringes laser pointer Thomas Young Source: http://en.wikipedia.org Figure 6: Young interferometer In addition to the interference when the light passes through a slit diffraction may also occur which is a deviation from rectilinear propagation direction of light, when it encounters an obstacle of similar dimensions to the wavelength thereof. The diffraction behavior is present and that the waves can be realized, for example, when a needle or a slit edges are illuminated by a beam of light in a dark environment, and when the waves bypassing a boat or hear the a sound being in another place. Figure 7: Diffraction of a wave. Adapted from: www.if.usp.br
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To je engleski znanstvenik Thomas Young(1773-1829) koji je, u 1800, izvodi jednu od prvih demonstracija predložiti eksperiment za proizvodnju smetnji učinke svjetlosti u uređaju pod nazivom Mladi bračni prorezi interferometrijski, kao što je prikazano na slici 6, u što mu je opisati metodu za određivanje lokacije maksimalnu smetnje uzorak, koji je, svjetlosni regije (konstruktivne interferencije). smetnje resice Laserski pokazivač Thomas Young (1773-1829) Izvor:http://en.wikipedia.org. Slika 6: Mladi interferometrijski Osim smetnji kada svjetlost prolazi kroz razrez difrakcije može pojaviti i što je odstupanje od smjera pravocrtno širenje svjetlosti, kada naiđe na prepreku od sličnih dimenzija na valnoj duljini njega. Lomovi ponašanje je prisutan i da su valovi mogu se ostvariti, primjerice, kada se iglom ili prorezom rubovi su osvijetljen snopom svjetla u tamnom okruženju, i kada valovi zaobilazeći brod ili čuti zvuk se na drugom mjestu. Slika 7: Difrakcija vala. Prilagođeno iz: www.if.usp.br