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• Diffraction_grating abstract "In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers.For practical applications, gratings generally have ridges or rulings on their surface rather than dark lines. Such gratings can be either transmissive or reflective. Gratings which modulate the phase rather than the amplitude of the incident light are also produced, frequently using holography.The principles of diffraction gratings were discovered by James Gregory, about a year after Newton's prism experiments, initially with items such as bird feathers. The first man-made diffraction grating was made around 1785 by Philadelphia inventor David Rittenhouse, who strung hairs between two finely threaded screws. This was similar to notable German physicist Joseph von Fraunhofer's wire diffraction grating in 1821.Diffraction can create \"rainbow\" colors when illuminated by a wide spectrum (e.g., continuous) light source. The sparkling effects from the closely spaced narrow tracks on optical storage disks such as CD's or DVDs are an example, while the similar rainbow effects caused by thin layers of oil (or gasoline, etc.) on water are not caused by a grating, but rather by interference effects in reflections from the closely spaced transmissive layers (see Examples, below). A grating has parallel lines, while a CD has a spiral of finely-spaced data tracks. Diffraction colors also appear when one looks at a bright point source through a translucent fine-pitch umbrella-fabric covering. Decorative patterned plastic films based on reflective grating patches are very inexpensive, and are commonplace.".
• Diffraction_grating thumbnail Diffraction_grating.jpg?width=300.
• Diffraction_grating wikiPageExternalLink histspec.txt.
• Diffraction_grating wikiPageExternalLink handbook.
• Diffraction_grating wikiPageExternalLink vpgratings.
• Diffraction_grating wikiPageExternalLink books?id=IlMBiFGO4pMC.
• Diffraction_grating wikiPageExternalLink InterferenceInDiffractionGratingBeams.
• Diffraction_grating wikiPageExternalLink ee5390em21.htm.
• Diffraction_grating wikiPageExternalLink gratingcalc.
• Diffraction_grating wikiPageExternalLink concave.
• Diffraction_grating wikiPageExternalLink Gratings.aspx.
• Diffraction_grating wikiPageExternalLink diffraction-gratings.
• Diffraction_grating wikiPageID "41031".
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• Diffraction_grating wikiPageRevisionID "706003500".
• Diffraction_grating wikiPageWikiLink 1785_in_science.
• Diffraction_grating wikiPageWikiLink 1821_in_science.
• Diffraction_grating wikiPageWikiLink Angle–sensitive_pixel.
• Diffraction_grating wikiPageWikiLink Birefringence.
• Diffraction_grating wikiPageWikiLink Blazed_grating.
• Diffraction_grating wikiPageWikiLink Burgess_Shale_type_fauna.
• Diffraction_grating wikiPageWikiLink Butterfly.
• Diffraction_grating wikiPageWikiLink Category:Diffraction.
• Diffraction_grating wikiPageWikiLink Category:Optical_devices.
• Diffraction_grating wikiPageWikiLink Category:Photonics.
• Diffraction_grating wikiPageWikiLink Cloud_iridescence.
• Diffraction_grating wikiPageWikiLink Compact_disc.
• Diffraction_grating wikiPageWikiLink Corona_(optical_phenomenon).
• Diffraction_grating wikiPageWikiLink DVD.
• Diffraction_grating wikiPageWikiLink David_Rittenhouse.
• Diffraction_grating wikiPageWikiLink Diffraction.
• Diffraction_grating wikiPageWikiLink Diffraction_efficiency.
• Diffraction_grating wikiPageWikiLink Digital_planar_holography.
• Diffraction_grating wikiPageWikiLink Dispersion_(optics).
• Diffraction_grating wikiPageWikiLink Dispersive_prism.
• Diffraction_grating wikiPageWikiLink E-reader.
• Diffraction_grating wikiPageWikiLink Echelle_grating.
• Diffraction_grating wikiPageWikiLink Electromagnetic_spectrum.
• Diffraction_grating wikiPageWikiLink Euclidean_vector.
• Diffraction_grating wikiPageWikiLink File:Difraction_grating_reflecting_green_light.JPG.
• Diffraction_grating wikiPageWikiLink Form_birefringence.
• Diffraction_grating wikiPageWikiLink Fraunhofer_diffraction.
• Diffraction_grating wikiPageWikiLink Fraunhofer_diffraction_(mathematics).
• Diffraction_grating wikiPageWikiLink Fresnel_diffraction.
• Diffraction_grating wikiPageWikiLink Frontlight.
• Diffraction_grating wikiPageWikiLink Gramophone_record.
• Diffraction_grating wikiPageWikiLink Grism.
• Diffraction_grating wikiPageWikiLink Halo_(optical_phenomenon).
• Diffraction_grating wikiPageWikiLink Henry_Augustus_Rowland.
• Diffraction_grating wikiPageWikiLink Henry_Joseph_Grayson.
• Diffraction_grating wikiPageWikiLink Holographic_grating.
• Diffraction_grating wikiPageWikiLink Holography.
• Diffraction_grating wikiPageWikiLink Huygens–Fresnel_principle.
• Diffraction_grating wikiPageWikiLink Integer.
• Diffraction_grating wikiPageWikiLink Interference_(wave_propagation).
• Diffraction_grating wikiPageWikiLink Iridescence.
• Diffraction_grating wikiPageWikiLink Isotropy.
• Diffraction_grating wikiPageWikiLink James_Gregory_(mathematician).
• Diffraction_grating wikiPageWikiLink Joseph_von_Fraunhofer.
• Diffraction_grating wikiPageWikiLink Kapitsa–Dirac_effect.
• Diffraction_grating wikiPageWikiLink Kirchhoffs_diffraction_formula.
• Diffraction_grating wikiPageWikiLink Laser.
• Diffraction_grating wikiPageWikiLink Lithography.
• Diffraction_grating wikiPageWikiLink Meteorology.
• Diffraction_grating wikiPageWikiLink Micrometre.
• Diffraction_grating wikiPageWikiLink Monochromator.
• Diffraction_grating wikiPageWikiLink N-slit_interferometric_equation.
• Diffraction_grating wikiPageWikiLink Nacre.
• Diffraction_grating wikiPageWikiLink Nanometre.
• Diffraction_grating wikiPageWikiLink Nook_Simple_Touch.
• Diffraction_grating wikiPageWikiLink Normal_(geometry).
• Diffraction_grating wikiPageWikiLink Optical_axis.
• Diffraction_grating wikiPageWikiLink Optical_axis_grating.
• Diffraction_grating wikiPageWikiLink Optical_path_length.
• Diffraction_grating wikiPageWikiLink Optics.
• Diffraction_grating wikiPageWikiLink Ostracod.
• Diffraction_grating wikiPageWikiLink Path_integral_formulation.
• Diffraction_grating wikiPageWikiLink Peafowl.
• Diffraction_grating wikiPageWikiLink Philadelphia.
• Diffraction_grating wikiPageWikiLink Photon.
• Diffraction_grating wikiPageWikiLink Photonic_integrated_circuit.
• Diffraction_grating wikiPageWikiLink Photosensitivity.
• Diffraction_grating wikiPageWikiLink Polarization_(waves).
• Diffraction_grating wikiPageWikiLink Polychromatic.
• Diffraction_grating wikiPageWikiLink Prism.
• Diffraction_grating wikiPageWikiLink Probability_amplitude.
• Diffraction_grating wikiPageWikiLink Pulse_compression.
• Diffraction_grating wikiPageWikiLink Quantum_electrodynamics.
• Diffraction_grating wikiPageWikiLink Rainbow.
• Diffraction_grating wikiPageWikiLink Reflectance.
• Diffraction_grating wikiPageWikiLink Reflection_(physics).
• Diffraction_grating wikiPageWikiLink Refractive_index.
• Diffraction_grating wikiPageWikiLink Richard_Feynman.
• Diffraction_grating wikiPageWikiLink Scattering.
• Diffraction_grating wikiPageWikiLink Spectrometer.
• Diffraction_grating wikiPageWikiLink Spectrum.
• Diffraction_grating wikiPageWikiLink Specular_reflection.
• Diffraction_grating wikiPageWikiLink Spider_web.
• Diffraction_grating wikiPageWikiLink Stray_light.

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