Central (GMT â 6 hours) Saskatchewan, province of Canada, one of the Prairie Provinces. It is one of only two Canadian provinces without a saltwater coast, and it is the only province whose boundaries are all wholly artificial (i.e., not formed by natural features).
A diffraction grating is a optical material or device that is usually designed to break up white light into the various colors of the visible spectrum.laze angles are used to concentrate a diffraction grating output on a certain band region of the light spectrum. This is done to obtain a maximum resolution in a particular band of light known as the Blaze wavelength.
difÂ·fracÂ·tion. The bending or turning of a wave, such as a light wave, when it encounters an obstacle, such as an edge, or a hole whose size is similar to the wavelength of the wave. The patterns made by the diffraction of waves can be useful for understanding the minute structures of objects.