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Physical Experiment of College

Young's Double-slit Interference Explained Easily by Wave Function

Chen Se

Published Jan 1, 2014• 0 citations
OpenAlex

Abstract

Young's double slit interference conditions are derived by wave function,and result is consistent with the derivation by light volatility. As fully considering the slit unlimited fine condition,derivation process and results more emphasis on optical interference,more highlights young's double slit interference characteristics,physical image is more clearer.

Related papers

The Computer Simulation of Intensity Distribution in Young's Double-slit Interference

Guo Lin

Considering double-slit interference as an optical wave passing a through double-slit hard aperture, the intensity expression of Young's double-slit interference is derived based on Collins diffraction integral. The intensity distribution of Young's double-slit interference is graphically demonstrated. The interference fringes will be changes by adjusting the parameter of slit width, double-slit separation, incident wavelength, etc. Meanwhile, the causes for the different brightness at bright fringe center in Young's double-slit interference are discussed. Additionally, the interference fringe width is calculated. The result agrees well with optical interference theory. As an expanding teach method, it will be helpful to understand the double-slit interference characteristics.

Journal of Guangdong Polytechnic Normal University•Jan 1, 2015•0 citations

Step-by-step Evolution of Young’s Double-slit Interference Fringes Using Boundary Diffraction Wave Theory

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Present work reports formation of Young’s double-slit interference fringes using the Young's own theory of diffraction called the theory of boundary diffraction wave. Theory demands that double-slit interference fringes are generated due to superposition of boundary diffraction waves originating from the edges of the slits due to their physical interaction with the incident light. The theoretical development is further verified with the experimental observations.

Open Physics Journal•Nov 30, 2016•1 citation

Double Slit to Non-parallel Double Slit to Curved Double Slit

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Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.

•Mar 15, 2024•4 citations

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Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.

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The Essential Difference between Interference and Diffraction of Light form the Perspective of Optical Path Difference

Jiafa Sun

Interference and diffraction of light are the nature performance of wave character,which is the result of superposition of waves.The essential difference between interference and diffraction phenomena is that interference comes from the superposition by the two or limited interfering beams of light,and diffraction is from the superposition by an infinite beam.From the perspective of optical path difference,corresponding to the same optical path difference,the minimum conditions of single-slit diffraction becomes the maxima conditions of double-slit interference.The reason is that the slot width is so small that can be considered as a single light source under the double-slit case,and the interference in the same slit can be ignored;while the single-slit diffraction minimum conditions are exactly correspond to the interference in the same slit.

Journal of Huaibei Industry Teachers College•Jan 1, 2012•0 citations
Young's double slit interference conditions are derived by wave function,and result is consistent with the derivation by light volatility. As fully considering the slit unlimited fine condition,derivation process and results more emphasis on optical interference,more highlights young's double slit interference characteristics,physical image is more clearer.
Considering double-slit interference as an optical wave passing a through double-slit hard aperture, the intensity expression of Young's double-slit interference is derived based on Collins diffraction integral. The intensity distribution of Young's double-slit interference is graphically demonstrated. The interference fringes will be changes by adjusting the parameter of slit width, double-slit separation, incident wavelength, etc. Meanwhile, the causes for the different brightness at bright fringe center in Young's double-slit interference are discussed. Additionally, the interference fringe width is calculated. The result agrees well with optical interference theory. As an expanding teach method, it will be helpful to understand the double-slit interference characteristics.
Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.
Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.
Interference and diffraction of light are the nature performance of wave character,which is the result of superposition of waves.The essential difference between interference and diffraction phenomena is that interference comes from the superposition by the two or limited interfering beams of light,and diffraction is from the superposition by an infinite beam.From the perspective of optical path difference,corresponding to the same optical path difference,the minimum conditions of single-slit diffraction becomes the maxima conditions of double-slit interference.The reason is that the slot width is so small that can be considered as a single light source under the double-slit case,and the interference in the same slit can be ignored;while the single-slit diffraction minimum conditions are exactly correspond to the interference in the same slit.