Difference between the spectra obtained through prism and grating?

AI Thread Summary
The primary difference between spectra obtained through a prism and a grating lies in their resolution and free spectral range. Diffraction gratings provide a higher resolution compared to prisms, allowing for more precise spectral analysis. However, prisms have a greater free spectral range, enabling them to separate wavelengths more effectively over a wider range. This distinction is crucial for applications in spectroscopy and optical analysis. Understanding these differences can enhance the selection of optical instruments for specific scientific needs.
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what is the basic difference between the spectra obtained through prism and grating?
 
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The resolution of a diffraction grating is much higher than a prism.

Conversely the free spectral range of a prism is much higher than a diffraction grating.

Claude.
 


Nice comparison, Claude, for my own knowledge. Thanks.
 

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