White Light Dispersed By Diffraction Grating

White Light Dispersed By Diffraction Grating

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Caption: White light dispersed by a diffraction grating. Transmissive diffraction grating is an optical element that has many thin lines of either absorptive material or thin grooves (indentations) on an otherwise transparent substrate. Light transmission through a diffraction grating occurs along discrete directions, called diffraction orders. Here a beam of white light incident from above is split into many diffraction orders, with +1 order containing most of the power. Within each order, different wavelengths of light are diffracted at slightly different angles, as is particularly evident for the +1 order.

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Keywords: beam, coherent, colour, diffracting, diffraction, diffraction grating, dispersion, dispersive, distribution, diverge, divergent, holographic, intensity, light, optical, optics, order, phase, photonics, physics, science, scientific, spectral, spectrum, technical, technology, transmission, transmissive, visible, wavelength, white, white light

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