Bandwidth converter

Conversion of peak bandwidth between different units and notations: FWHM, standard deviation \( \sigma \), diameter at \( 1/\mathrm{e}^2 \) and \( 1/\mathrm{e} \) level.

Wavelength \( \lambda_0 \)
nm
Bandwidth \( \Delta\lambda \)
nm

Wavenumber \( k_0 \)
cm⁻¹
Bandwidth \( \Delta k \)
cm⁻¹
Feedback button