College Physics ›› 2024, Vol. 43 ›› Issue (8): 68-.doi: 10.16854/j.cnki.1000-0712.230274
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WANG Zhi-yuan, FAN Ling
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Abstract: An approximation method for directly solving the relative light intensity of centers of bright stripes in Fraunhofer single slit diffraction is presented,and an indepth error analysis is conducted. By combining halfwave zone method and amplitude vector method,the central light intensity of bright stripes can be calculated simply and directly. By comparing different amplitude vector graphics,the error cause is analyzed. The accurate positions of bright center are obtained through quantitative analysis. It is found that the maximum relative error of this method is less than 5 %,and when the fringe order is greater than or equal to 3,the relative error is less than 1%.
Key words: Fraunhofer single slit diffraction, half-wave zone method, relative light intensity, error analysis
WANG Zhi-yuan, FAN Ling. Calculation of relative light intensity of centers of bright stripes in #br# Fraunhofer single slit diffraction by half-wave zone method#br#[J].College Physics, 2024, 43(8): 68-.
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URL: https://dxwl.bnu.edu.cn/EN/10.16854/j.cnki.1000-0712.230274
https://dxwl.bnu.edu.cn/EN/Y2024/V43/I8/68
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