Gratings, diffraction groove spacing

Operating principle of a diffraction grating, cp is the angle of incidence d is the groove spacing 9 is the angle of reflection. 

Flere the index m has values 0 for the 532-nm measmements, +1 for the first anti-Stokes (blue-shifted) line, and -1,-2 for the first, second Stokes (red-shifted) lines, etc. n is the diffraction order (0, 1, 2) and o is the groove spacing of the grating, supplied by the... 

Figure 6.5. Diffraction of incident light by a reflection grating having a groove spacing of d. 

Diffraction grating The most common gratings are made of reflecting or transparent sheets marked with fine parallel and equally spaced grooves or rulings. The grating separates polychromatic electromagnetic waves into their components. Similar results can be produced with a prism, but the mechanism is quite different. Fraunhofer used very fine parallel wires in his experiments. 

Grating A device consisting of closely spaced grooves that is used to disperse polychromatic radiation by diffracting it into its component wavelengths. 

Rowland ghosts spurious intensity maximum spurred from periodic errors in the spacing of the ruled grooves in a diffraction grating. 

Diffraction Gratings. UV, visible, and IR radiation can be dispersed by a diffraction grating. A diffraction grating consists of a series of closely spaced parallel grooves cut... 

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