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Diffraction grating
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In optics, a diffraction grating is a grating with a periodic structure of appropriate scale so as to diffract light, or another type of electromagnetic radiation, into several beams traveling in diff
A very large reflecting diffraction grating
A very large reflecting diffraction grating
An incandescent light bulb viewed through a diffractive effects filter.
An incandescent light bulb viewed through a diffractive effects filter.
A blazed diffraction grating reflecting only the green portion of the spectrum from a room's fluorescent lighting
A blazed diffraction grating reflecting only the green portion of the spectrum from a room's fluorescent lighting
A helical fluorescent lamp photographed in a blazed reflection-diffraction grating, showing the various spectral lines produced by the lamp.
A helical fluorescent lamp photographed in a blazed reflection-diffraction grating, showing the various spectral lines produced by the lamp.
Monochromator
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A monochromator is an optical device that transmits a mechanically selectable narrow band of wavelengths of light or other radiation chosen from a wider range of wavelengths available at the input. Th
Diffraction grating
…on the grating, and the wavelength of the incident light. Because the grating acts as a dispersive element, diffraction gratings are commonly used in monochromators and spectrometers, but other applications are also possible such as optical encoders for high-precision motion control and wavefront measurement. For…
Monochromator in an x-ray beamline at the Advanced Photon Source, Argonne National Laboratory.
Monochromator in an x-ray beamline at the Advanced Photon Source, Argonne National Laboratory.
Neutron monochromator for the ECHIDNA powder diffractometer at OPAL in Australia. It is made by slabs of [113] oriented germanium crystals which are i
Neutron monochromator for the ECHIDNA powder diffractometer at OPAL in Australia. It is made by slabs of [113] oriented germanium crystals which are inclined towards each other in order to focus down the Bragg reflected beam.
A combined reflecting-focusing diffraction grating
A combined reflecting-focusing diffraction grating
A Littrow grating monochromator. This is similar to the Czerny–Turner but uses a common collimator/refocusing mirror.
A Littrow grating monochromator. This is similar to the Czerny–Turner but uses a common collimator/refocusing mirror.