Title

Diffraction by a cat’s whisker

Document Type

Article

Publication Date

2000

Abstract

The diffraction patterns produced by a single slit of width w and a thin wire of the same width are exactly the same. This is called Babinet's principle and is based on the fact that the interference pattern produced by blocking out part of a wavefront depends only on the locations of the edges of the diffraction obstacle.

Journal

The Physics Teacher

Volume

38

First Page

422