relating to a type of optical grating that splits light into different beams that move in different directions
2.
relating to a type of spectrograph
For more related stories search the print edition Archive Astrophysical Instituteof Paris UV-Visual Echelle Spectrograph
Examples of 'echelle' in a sentence
echelle
One telescope fiber feeds a bench-mounted high-resolution echelle spectrograph while the other telescope feeds a wide-field imaging photometer.
Klaus G. Strassmeier, Thomas Granzer, Michael Weber, Manfred Woche, Emil Popow, ArtoJärvinen, Janos Bartus, Svend-Marian Bauer, Frank Dionies, Thomas Fechner, WilbertBittner, Jens Paschke 2010, 'The STELLA Robotic Observatory on Tenerife', Advances in Astronomyhttp://dx.doi.org/10.1155/2010/970306. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The photodetectors were efficiently implemented and imposed on the echelle grating circle for wavelength division multiplexing monitoring.
Shih-Hsiang Hsu 2010, 'Reflectively Coupled Waveguide Photodetector for High Speed Optical Interconnection',Sensorshttp://www.mdpi.com/1424-8220/10/12/10863/. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)