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Echelle grating, the Glossary

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.^[1]

11 relations: Albert A. Michelson, Blazed grating, Defocus aberration, Diffraction grating, Dispersive prism, Grating, Grism, High Accuracy Radial Velocity Planet Searcher, Optical aberration, PRL Advanced Radial-velocity All-sky Search, Spectrometer.
Diffraction gratings

Albert A. Michelson

Albert Abraham Michelson FFRS FRSE (surname pronunciation anglicized as "Michael-son", December 19, 1852 – May 9, 1931) was a Prussian-born American physicist of Jewish descent, known for his work on measuring the speed of light and especially for the Michelson–Morley experiment.

See Echelle grating and Albert A. Michelson

Blazed grating

A blazed grating – also called echelette grating (from French échelle. Echelle grating and blazed grating are diffraction gratings.

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Defocus aberration

In optics, defocus is the aberration in which an image is simply out of focus.

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Diffraction grating

In optics, a diffraction grating is an optical grating with a periodic structure that diffracts light, or another type of electromagnetic radiation, into several beams traveling in different directions (i.e., different diffraction angles). Echelle grating and diffraction grating are diffraction and diffraction gratings.

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Dispersive prism

In optics, a dispersive prism is an optical prism that is used to disperse light, that is, to separate light into its spectral components (the colors of the rainbow).

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Grating

A grating is any regularly spaced collection of essentially identical, parallel, elongated elements.

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Grism

A grism (also called a grating prism) is a combination of a prism and grating arranged so that light at a chosen central wavelength passes straight through. Echelle grating and grism are diffraction and diffraction gratings.

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High Accuracy Radial Velocity Planet Searcher

The High Accuracy Radial Velocity Planet Searcher (HARPS) is a high-precision echelle planet-finding spectrograph installed in 2002 on the ESO's 3.6m telescope at La Silla Observatory in Chile.

See Echelle grating and High Accuracy Radial Velocity Planet Searcher

Optical aberration

In optics, aberration is a property of optical systems, such as lenses, that causes light to be spread out over some region of space rather than focused to a point.

See Echelle grating and Optical aberration