College Physics ›› 2021, Vol. 40 ›› Issue (9): 28-.doi: 10.16854 / j.cnki.1000- 0712.200479
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ZHU Ling，LU Rong-de，ZHAO Wei，ZHENG Hong，ZHANG Quan，LI Heng-yi
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Abstract: The interferometry of spherical wave convergent light is used in this paper to
experimentally measure the width of the cut- off part of the Billet split lens by using He-
Ne laser as the light source，and the uncertainty
analysis of the width value is carried out.Also，the width value is taken as a known
quantity to obtain the length of the sodium light wave based on the interferometry of plane wave divergent light and spherical wave
convergent light.The experimental data are analyzed to verify the rationality of experimentally measuring the
width of the cut-off part of the Billet split lens.
Key words: split-wavefront, double-beam interferometry experiment, Billet split lens, width of the cut-off part
ZHU Ling, LU Rong-de, ZHAO Wei, ZHENG Hong, ZHANG Quan, LI Heng-yi. Measuring the width of the cut-off part of the Billet split lens by the split-wavefront double-beam interferometry experiment[J].College Physics, 2021, 40(9): 28-.
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URL: https://dxwl.bnu.edu.cn/EN/10.16854 / j.cnki.1000- 0712.200479
https://dxwl.bnu.edu.cn/EN/Y2021/V40/I9/28
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