title: Diffraction efficiency gain, blazing, and apodizing of a symmetric square reflection grating in an étalon.
abstract: First-order diffraction efficiency of 50% into a single beam was obtained from a weak symmetric square metal diffraction grating operated in an étalon at the 632.8-nm He-Ne laser wavelength. Without the étalon the diffraction efficiency was just 2.7% in each of the two first-order beams. First-order diffraction efficiency gain as well as blazing and apodizing of the grating occur because of the resonant paraxial angular spectrum of the étalon.
authors.forename: J
authors.initials: J
authors.lastname: Krawczak
authors.forename: R
authors.initials: R
authors.lastname: Dean
authors.forename: E J
authors.initials: EJ
authors.lastname: Torok
authors.forename: G
authors.initials: G
authors.lastname: Nelson