Share Email Print

Proceedings Paper

Determining Bandpass Of Spectrometric Instruments Which Use Concave Gratings
Author(s): Steven C. Irick
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An algorithm for determining the bandpass of spectrometric instruments is presented. This algorithm makes use of the results of tracing rays through a concave holographic grating in order to obtain an irradiance distribution which is convolved with the exit slit of a monochromator or a detector element of a spectrograph. The resulting convolution may be interpreted as a function of irradiance vs. wavelength, which we call the instrumental profile. A finite number of rays alone is not enough to establish bandpass of a particular instrument configuration. Smoothing from the convolution and possibly additional filtering of the irradiance data are necessary in order to get a continuous irradiance function from which a single bandpass quantity is determined. Examples of one particular instrument design are used to compare the results of a computer program using this algorithm to actual instrument bandpass measurements.

Paper Details

Date Published: 5 July 1989
PDF: 11 pages
Proc. SPIE 1055, Raman Scattering, Luminescence and Spectroscopic Instrumentation in Technology, (5 July 1989); doi: 10.1117/12.951601
Show Author Affiliations
Steven C. Irick, Milton Roy Company (United States)

Published in SPIE Proceedings Vol. 1055:
Raman Scattering, Luminescence and Spectroscopic Instrumentation in Technology
Fran Adar; James E. Griffiths; Jeremy M. Lerner, Editor(s)

© SPIE. Terms of Use
Back to Top