Diffraction Topic

Students observe single-slit Fraunhofer diffraction patterns produced by a laser through precision electroformed slits of different widths. Comparing the patterns demonstrates the inverse relationship between slit width and diffraction pattern …

Demonstrates single-slit Fraunhofer diffraction using a Cornell plate with calibrated slits of varying widths. Students observe the inverse relationship between slit width and diffraction pattern width, with quantitative verification possible …

Demonstrates single-slit Fraunhofer diffraction and the inverse relationship between slit width and angular spread. Students directly observe that narrower slits produce wider diffraction patterns by rotating through discrete slits from …

Demonstrates Poisson's (Arago's) bright spot: light diffracting around an opaque disk produces a counterintuitive bright spot at the center of the geometric shadow. Provides compelling evidence for the wave nature …

An expanded He-Ne laser beam illuminates various objects on a rotating disk — razor blade, needle, pin, pinhole, and wire — to produce Fresnel diffraction patterns on a screen. Students …

A laser beam diffracts around a thin wire, producing a fringe pattern equivalent to single-slit diffraction of the same width (Babinet's principle). Students see that light bends around opaque obstacles …