Multiply diffracted light in the Czerny-Turner spectrometer.
At certain small angles of the grating, any in-plane spectrometer will pass stray light that has been returned by the reflecting optics for a second diffraction. Paths of this source of stray light and its strueture have been calculated and confirmed experimentally.
Mitteldorf
J J
JJ
Harvard College, Cambridge Massachusetts 02138, USA.
Landon
D O
DO