Reflection Efficiencies of a Periodic Absorbing Surface
- 1 March 1964
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 54 (3) , 353-356
- https://doi.org/10.1364/josa.54.000353
Abstract
The reflection efficiencies for the various orders of diffraction produced by a grating are calculated under the following assumptions. The grating is for the most part flat, but with a fraction ∊ of the periodicity interval a described by a profile function z=f(x). The reflection and transmission efficiencies are calculated as a series expansion in ∊. Numerical calculations have been performed for the case of ultrasoft x rays incident at near grazing angles, using a complex index of refraction η=1−δ0λ2+iβ0λ3.25 or tabulated values. No effects of shadowing by the grating profile have been considered, and the numerical work has been done for a symmetrical triangular trench incised in the flat surface.Keywords
This publication has 3 references indexed in Scilit:
- Variational Method for the Calculation of the Distribution of Energy Reflected from a Periodic Surface. I.Journal of Applied Physics, 1956
- Note on the Theory of Gratings*Journal of the Optical Society of America, 1953
- A General Derivation of the Formula for the Diffraction by a Perfect GratingPhysical Review B, 1933