optical monochromator
optical monochromator
[′äp·tə·kəl ¦man·ə′kräm·əd·ər] (spectroscopy)
A monochromator used to observe the intensity of radiation at wavelengths in the visible, infrared, or ultraviolet regions.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.