Difference between the spectra obtained through prism and grating?

Thread starter kmp
Start date Apr 10, 2010
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Difference Grating Prism Spectra

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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.

Apr 10, 2010

kmp

what is the basic difference between the spectra obtained through prism and grating?

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Apr 10, 2010

kmp

i want a clear picture...

Apr 11, 2010

Claude Bile

Science Advisor

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.

Apr 11, 2010

pallidin

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

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