The Newton two‐knife experiment: Intricacies of wedge diffraction
作者:
M. P. Silverman,
Wayne Strange,
期刊:
American Journal of Physics
(AIP Available online 1996)
卷期:
Volume 64,
issue 6
页码: 773-787
ISSN:0002-9505
年代: 1996
DOI:10.1119/1.18278
出版商: American Association of Physics Teachers
关键词: HISTORICAL ASPECTS;LASER RADIATION;01.65;42.
数据来源: AIP
摘要:
About a century before Young’s celebrated two‐slit experiment, Isaac Newton quantitatively investigated the diffraction of light from a wedge aperture, but failed to understand the implications of his findings. We have reexamined this unusual system theoretically within the framework of the Fresnel–Kirchhoff scalar diffraction theory, and experimentally using a laser light source with pinhole spatial filter and CCD camera. Both the far‐field shadow region and near‐field directly illuminated region reveal aesthetically striking images that are deducible from the mathematical analysis, but whose interpretation is subtle and best elucidated by an alternative and less widely known perspective of diffraction.
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