RES.6-006 | Spring 2008 | Undergraduate
Video Demonstrations in Lasers and Optics
Demonstrations in physical optics

Fringe Contrast — Path Difference

Demonstration of two-beam interference in a Michelson interferometer with collimated beams

Demonstration of the effect of path length difference (0-100 cm) on fringe contrast

Demonstration of the spectrum of the light source, in this case, a multilongitudinal mode He-Ne laser

Relationship between fringe contrast, path length difference, and spectrum of the light source