Production of diffraction gratings using holographic interferometry

Holographic transmission gratings are produced using low power He-Ne laser and the 488-nm Ar-ion laser line. From the observed data of the Hg spectrum and the 488.0-nm, 514.5-nm and 632.8-nm laser lines the fringe spacings of the gratings are calculated. Using the gratings produced with the He-Ne laser the Rydberg constant is determined by measuring the diffraction angles of the Balmer series in the H-atomic spectrum. (author). 12 refs, 4 figs, 1 tab