To convert a known absolute wavelength to a Raman shift in wavenumbers, or to convert a known Raman shift in wavenumbers to an absolute wavelength, provide the laser’s excitation wavelength and either of the other two values, then click “Compute”.
Want to implement the math in your own spreadsheets or applications?
Wavelength >> Raman shift
Excel formula for Raman shift:
Raman shift >> Wavelength