Determining Laser Wavelength Using Diffraction Grating (Lab 17 of 23)

This video from Laser-Tec is part of a series of light and optics experiments. In this lab, participants determine laser wavelength using diffraction grating. Participants learn about white and monochromatic light diffraction and calculate the wavelength of a HeNe laser. Equipment includes a red laser diode module, laser holder, diffraction grating, lens holder, measuring tape, a pencil, and white sheet of paper. The video recording runs 13:39 minutes in length.