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monochromator

[mon-uh-kroh-mey-ter] /ˌmɒn əˈkroʊ meɪ tər/
noun, Optics.
1.
a spectroscope with a slit that can be moved across the spectrum for viewing individual spectral bands.
Also called monochromatic illuminator.
Origin
1905-1910
1905-10; monochromat(ic) + (illuminat)or
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for monochromator
  • The first monochromator is vertically focused and the second can be either a vertically or a double focused unit.
  • Spikes were more frequent in the double-monochromator data than in that of the single monochromator.
  • The settings used will depend on the current monochromator selection.
  • In one set up, the incident beam was collimated by a silicon monochromator and the samples were rocked.
British Dictionary definitions for monochromator

monochromator

/ˌmɒnəʊˈkrəʊmeɪtə/
noun
1.
(physics) a device that isolates a single wavelength of radiation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for monochromator

instrument that supplies light of one colour or light within a narrow range of wavelengths. Unwanted wavelengths (colours) are blocked by filters (first used by Bernard Lyot in the 1930s) or bent away, as in the spectroheliograph. The monochromator is used to photograph the Sun and to study photochemical effects; it is usually a component of a spectrophotometer.

Learn more about monochromator with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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