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echelle
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The answer ECHELLE has 0 possible clue(s) in existing crosswords.
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The word ECHELLE is VALID in some board games. Check ECHELLE in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of echelle in various dictionaries:
noun - a device for spreading light into its component colors
ECHELLE - An echelle grating (from French, échelle, meaning ladder) is a type of diffraction grating characterised by a relatively low groove density, but a g...
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| An echelle grating. |
| Echelle might refer to |
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| An Echelle grating (from French, échelle, meaning ladder) is a type of diffraction grating characterised by a relatively low groove density, but a groove shape which is optimized for use at high incidence angles and therefore in high diffraction orders. Higher diffraction orders allow for increased dispersion (spacing) of spectral features at the detector, enabling increased differentiation of these features. Echelle gratings are, like other types of diffraction gratings, used in spectrometers and similar instruments. They are most useful in cross-dispersed high resolution spectrographs, such as HARPS, PARAS (PRL Advanced Radial Velocity Abu Sky Search) and numerous other astronomical instruments. |