Modulation Transfer Spectroscopy of the D1 Transition of Potassium: Theory and Experiment

Andrew D. Innes, Prosenjit Majumder, Heung-Ryoul Noh +1

We report on a study of modulation transfer spectroscopy of the $4{\text{S}}_{1/2}\to 4{\text{P}}_{1/2}$ ($D_1$) transition of naturally abundant potassium in a room-temp…