Difference between the spectra obtained through prism and grating?

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SUMMARY

The primary difference between spectra obtained through a prism and a diffraction grating lies in their resolution and free spectral range. A diffraction grating provides a significantly higher resolution compared to a prism, making it more effective for detailed spectral analysis. However, a prism offers a greater free spectral range, allowing for a wider range of wavelengths to be analyzed simultaneously. This distinction is crucial for applications requiring precise spectral measurements.

PREREQUISITES
  • Understanding of optical physics principles
  • Familiarity with diffraction and interference concepts
  • Knowledge of spectral analysis techniques
  • Basic experience with optical instruments
NEXT STEPS
  • Research the principles of diffraction grating design and its applications
  • Explore the mathematical formulation of resolution in optical systems
  • Study the concept of free spectral range in optical devices
  • Investigate practical applications of prisms in spectroscopy
USEFUL FOR

Optical physicists, spectroscopists, and students studying optical instruments will benefit from this discussion, particularly those interested in the comparative analysis of spectral resolution and range.

kmp
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what is the basic difference between the spectra obtained through prism and grating?
 
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i want a clear picture...
 


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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