Application of Optical Path Drawing Technology: The Light Intensity Problem of Double-Slit Interference

The wave nature of light has been widely demonstrated in a double-slit experiment, which has played a special role in physics teaching. When monochromatic light passes through the double-slit sheet, the diffraction and interference fringes can be observed in the far-field regime. The interference of...

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Bibliographic Details
Published in:The Physics teacher 2022-09, Vol.60 (6), p.457-459
Main Authors: Chiang, Chun-Ming, Ma, Shih-Hsin, Lin, Shou-Tai, Hsu, Wel-Hung, Huang, Pin-Jui
Format: Article
Language:English
Subjects:
Light
Optics
Physics
Science Experiments
Science Instruction
Teaching Methods
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Summary:The wave nature of light has been widely demonstrated in a double-slit experiment, which has played a special role in physics teaching. When monochromatic light passes through the double-slit sheet, the diffraction and interference fringes can be observed in the far-field regime. The interference of light causes the beams passing through the two slits to interact with each other, but each slit still retains the diffraction characteristics of a single slit, so the result is a combination of diffraction and interference patterns.
ISSN:0031-921X
1943-4928
DOI:10.1119/5.0030910