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Generation of N-slit Interference Pattern Using Two slits

Supantho Rakshit

Published May 30, 2016• 0 citations
OpenAlex

Abstract

We propose an experimental setup to create a virtual N-slit grating by slight alteration of Thomas Young's classic double slit experiment.

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Young’s double-slit experiment had been performed over 200 years ago. Two- dimension cross-double-slit has been proposed recently. We report observations of two-dimension-cross-interference patterns created by two-dimension cross-double-slit apparatuses.

International Journal of Physics•Aug 27, 2020•16 citations

Strange patterns of light

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In a modern version of Young's double slit experiment, a laser beam passes through two narrow slits and creates an interference pattern of bright and dark fringes on a distant screen. We place magnifying glasses between the double-slit and the screen, and when a laser beam passes through the double-slit and magnifying glasses, strange patterns will appear on the screen.

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Strange patterns of light

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In a modern version of Young's double slit experiment, a laser beam passes through two narrow slits and creates an interference pattern of bright and dark fringes on a distant screen. We place magnifying glasses between the double-slit and the screen, and when a laser beam passes through the double-slit and magnifying glasses, strange patterns will appear on the screen.

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Curved, expanded and inclined patterns of dynamic double slit/cross‐double slit/grating experiments

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Abstract Young's 1D‐double‐slit experiments have been extended to 2D‐cross‐double‐slit experiments, in which more than one 1D‐double‐slits are crossed at the same spot and each 1D‐double‐slit creates the interference pattern independently. In this article, the varieties of the double‐slit/cross‐double‐slit/grating experiments are presented. The universal novel phenomena are: (1) the interference/diffraction patterns (hereafter referred as “patterns”) are curved; (2) the patterns are expanded; and (3) the patterns created by the tilt‐double slits are inclined to the axis perpendicular to the axis the diaphragm rotates around. The directions of the patterns curved towards are determined by whether the diaphragm rotates clockwise or counter‐clockwise. To determine the directions, right‐hand rule and left‐hand rule are proposed. The degrees of the expansions depend on both the original orientation of the double slit and the angle of the diaphragm rotates. The formulars to calculate the expansion and the inclination of the patterns are derived. The experimental observations support the formulars. The novel phenomena not only make the Feynman's mystery more mysterious, but also provide the comprehensive data/information to theoretical study of the mystery of double slit experiments. Furthermore, the novel phenomena may have potential applications, for example, in antenna system. The phenomenon of the expanded Airy pattern is presented.

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Current Research in Physics•Jan 15, 2024•1 citation

Experimental Study of Mystery of Double Slit --- Comprehensive Double Slit Experiments

Hui Peng

Young’s double slit experiments, which represent the mystery of quantum mechanics, have been interpreted by quantum probability waves and pilot waves. In this article, to study the mystery, we introduce the “virtual box” which represents the slide of double-slit and its right-hand neighborhood. Within, and only within, the “virtual box” the standard wave interference patterns are formed. We propose and carry out “comprehensive double slit experiments” that show that, first, light travelling from a laser source towards the slides of double slit and/or cross-double slit behaves as particle (postulate-1), and second, after leaving the "virtual box" zone and being directed towards the detector, the light behaves as a stream of photons (postulate-2) with no further interference due to the slits. On the one hand, the interference patterns do exist in the comprehensive-double slit experiments. On the other hand, we show four novel phenomena: (1) the fringes of the interference patterns are formed independently; (2) the fringes of the interference patterns can be formed partially; (3) the longitudinal shields do not disturb the interference patterns; and (4) the range of the virtual box is less than one inch. These novel phenomena indicate that photons behave as particles, and would not be expected if photons behave as waves created by the double slit and/or cross double slit. The comprehensive-double slit experiments show the coexistence of wave distribution and particle nature of photons in the same experiment, which violates complementarity principle and thus, seems a paradox. We suggest an interpretation to address the paradox. All observations of the comprehensive-double slit experiments are consistent. Progress in studying the mystery of the double slit experiment is presented.

International Journal of Physics•Mar 23, 2021•6 citations
Abstract Young's 1D‐double‐slit experiments have been extended to 2D‐cross‐double‐slit experiments, in which more than one 1D‐double‐slits are crossed at the same spot and each 1D‐double‐slit creates the interference pattern independently. In this article, the varieties of the double‐slit/cross‐double‐slit/grating experiments are presented. The universal novel phenomena are: (1) the interference/diffraction patterns (hereafter referred as “patterns”) are curved; (2) the patterns are expanded; and (3) the patterns created by the tilt‐double slits are inclined to the axis perpendicular to the axis the diaphragm rotates around. The directions of the patterns curved towards are determined by whether the diaphragm rotates clockwise or counter‐clockwise. To determine the directions, right‐hand rule and left‐hand rule are proposed. The degrees of the expansions depend on both the original orientation of the double slit and the angle of the diaphragm rotates. The formulars to calculate the expansion and the inclination of the patterns are derived. The experimental observations support the formulars. The novel phenomena not only make the Feynman's mystery more mysterious, but also provide the comprehensive data/information to theoretical study of the mystery of double slit experiments. Furthermore, the novel phenomena may have potential applications, for example, in antenna system. The phenomenon of the expanded Airy pattern is presented.
Young’s double slit experiments, which represent the mystery of quantum mechanics, have been interpreted by quantum probability waves and pilot waves. In this article, to study the mystery, we introduce the “virtual box” which represents the slide of double-slit and its right-hand neighborhood. Within, and only within, the “virtual box” the standard wave interference patterns are formed. We propose and carry out “comprehensive double slit experiments” that show that, first, light travelling from a laser source towards the slides of double slit and/or cross-double slit behaves as particle (postulate-1), and second, after leaving the "virtual box" zone and being directed towards the detector, the light behaves as a stream of photons (postulate-2) with no further interference due to the slits. On the one hand, the interference patterns do exist in the comprehensive-double slit experiments. On the other hand, we show four novel phenomena: (1) the fringes of the interference patterns are formed independently; (2) the fringes of the interference patterns can be formed partially; (3) the longitudinal shields do not disturb the interference patterns; and (4) the range of the virtual box is less than one inch. These novel phenomena indicate that photons behave as particles, and would not be expected if photons behave as waves created by the double slit and/or cross double slit. The comprehensive-double slit experiments show the coexistence of wave distribution and particle nature of photons in the same experiment, which violates complementarity principle and thus, seems a paradox. We suggest an interpretation to address the paradox. All observations of the comprehensive-double slit experiments are consistent. Progress in studying the mystery of the double slit experiment is presented.