Spurious Radiation in Littrow-Mounted Grating Monochromators

Stamm R. F. and Salzmann C. F. Jr. , J. Opt. Soc. Am. 43, 126 (1953).

Alpert N. L. , Appl. Opt. 1, 437 (1962).

Stamm and Salzmann observed the double diffraction for radiation at longer wavelengths, because their grating was mounted so that the zero order lay on the left of the collimator as viewed from the grating, rather than on the right, as is usually the case.

Walsh A. , J. Opt. Soc. Am. 42, 94 (1952).