Feature

Measuring the Wavelength of Light with a Ruler

Keigo Iizuka

Almost 20 years ago, Arthur L. Schawlow, the 1981 Nobel laureate, told the author that a metal ruler could be used to measure the wavelength of light. Since then, he has always wanted to verify the accuracy of such an experiment for himself. He finally has; the method and results are reported in this article.

Publish Date: 01 June 2005