Fig. 5: Typical Lamb-dip absorption profile.
From: Absolute frequency metrology of buffer-gas-cooled molecular spectra at 1 kHz accuracy level
Lamb-dip profile (with corresponding fit residuals) recorded for fAc = fHe = 3 SCCM and PSCAR = 40 μW, exhibiting the highest SNR (90) and narrowest FWHM (370 kHz).
