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Diffraction Gratings An Introduction

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Diffraction Gratings An Introduction

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A diffraction grating is an optical element that diffracts energy into its constituent wavelengths. The major difference between a diffraction grating and a prism is that the dispersion of a prism is non -linear while gratings offer linear dispersion. Gratings are also generally more efficient and do not suffer from absorption effects which limit the useful wavelength range of a prism.

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