Simplified formulas for the intensity distribution among the orders of an echelette grating are derived from the Green’s function method, and compared with previous expressions. The application to special types of mounts and the possibility of using gratings as filters is discussed.
JOHN H. ROHRBAUGH and ROBERT D. HATCHER, "Theory of the Echelette Grating. II*," J. Opt. Soc. Am. 48, 704-708 (1958)