Holographic grating imaging spectrometer

Details Holographic grating imaging spectrometer Holographic grating imaging spectrometer

1990-08-24

1992-08-18

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01J 328

Patent

active

051393352

ABSTRACT:
A spectrometer apparatus is provided including means for focusing a light beam with a concave holographic grating, means for passing light reflected from the grating through a step order filter to an array detector and means for processing signals from the array detector. The spectrometer permits monitoring a plurality of grating orders simultanously without mechanical scanning.

REFERENCES:
patent: 4730922 (1988-03-01), Bach et al.
patent: 4822998 (1989-04-01), Yokota et al.
patent: 4997281 (1991-03-01), Stark
Sweedler et al., "High . . . Device Detectors", Analytical Chemistry, vol. 60, #4, Jan. 15, 1988, pp. 289-291.

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