SATURATION OF THE NO$_{2}$ $\nu_{1} + \nu_{3}$ AND THE CH$_{4}$ $\nu_{3}$ TRANSITIONS IN HELIUM NANODROPLETS

Abstract

We will report our findings of quantitative study of saturation of IR transition in Helium nanodroplets. The excitation source is an Argos cw PPLN OPO (Aculight) that is focused to a spot of 27 $\mu$m, producing a pear power of 87 kW/cm$^{2}$. We have also used a "Perry Cell'' multi pass cell to study of the effect of extending the interaction time. We will present results for a study of the 2905.566\,cm$^{-1}$\, R(0) transition of NO$_{2}$ and the 3029.07\,cm$^{-1}$\, R(0) transition of CH$_{4}$.