title: Four-wave interference and perfect blaze.
abstract: The recently calculated high diffraction efficiencies for TE- and TM-polarized light (perfect blaze) for echelette gratings are explained by four-wave interference, which is formed as a double periodical pattern in the cross section of the grating plane. The blazed grating profile should match this interference pattern for a single reference light wavelength. The recently published data are the special case of a general design. The prognoses of the model are connected with large grating constants in comparison with the light wavelength, where short grating constants need comparison with numerical methods.
authors.affiliation: Ferdinand-Braun-Institut, Gustav-Kirchhoff-Strasse 4, 12489 Berlin, Germany. guether@fbh-berlin.de
authors.forename: R
authors.initials: R
authors.lastname: Güther