Question

Algebraically or geometrically estimate the optical bandwidth (in nm) at the exit slit of a Littrow grating monochromator with a focal length of 25 cm, utilizing the second order diffraction, in which the grating is blazed at 1250 line/mm and exit slit width is 0.55 mm. Assume the linear dispersion of the grating is linear over the opening of the exit slit. Uncorrected, this monochromator will suffer from stray light at 350 nm. What is the source of the stray light and what can be done to minimize or eliminate it?

Name: algebraically or geometrically estimate the optical bandwidth in nm at the exit slit of a littrow grating monochromator with a focal length of 25 cm utilizing the second order diffraction in 11273
Uploaded: 2023-07-24T08:22:37-08:00
Duration: 33 s
Channel: Numerade
Description: algebraically or geometrically estimate the optical bandwidth in nm at the exit slit of a littrow grating monochromator with a focal length of 25 cm utilizing the second order diffraction in 11273

          Algebraically or geometrically estimate the optical bandwidth
(in nm) at the exit slit of a Littrow grating
monochromator with a focal length of 25 cm, utilizing the second
order diffraction, in which the grating is
blazed at 1250 line/mm and exit slit width is 0.55 mm. Assume the
linear dispersion of the grating is linear
over the opening of the exit slit.
Uncorrected, this monochromator will suffer from stray light at 350
nm. What is the source of the stray light
and what can be done to minimize or eliminate it?

Added by James L.

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