While they are fairly simple devices, diffraction gratings for spectrometry tools have established a foothold in modern spectrometry and shaped the technology of our lives. When white light is incident on the grating, its constituent colors are separate as they bend through the slit that matches their respective wavelengths. In a nutshell, a diffraction grating comprises slits of varying widths to match the wavelengths of the different colors of the visible spectrum. A diffraction grating is a device that splits electromagnetic radiation into its constituent wavelengths. In this blog, we cover the applications of diffraction gratings for spectrometry tools in modern technology.Įvolved from Young’s Double Slit experiment, diffraction gratings are the preferred method of light scattering in many spectrometers. That is, it proved that light exhibits properties of both waves and particles. The discovery of light diffraction was monumental in optical physics because it proved light’s wave-particle duality. Young’s Double Slit experiment demonstrates the same principle by passing light through a small slit and observing the light on a screen when it exits on the other side. On the white screen, you will observe an array of colors as each wavelength in the visible spectrum is bent to a different degree, effectively separating the white light into its constituent colors. In the prism experiment, white light is passed through a prism and viewed on a white screen as it exits the prism. The phenomena can be best observed using the prism experiment or Young’s Double-Slit Experiment. Diffraction is the bending of a wave as it passes around a corner or through an opening.
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