Measurement of 6Li Atomic Beam Properties

Laser cooling is used for frequency standards, quantum simulators, research of ultracold gases and etc. To get large number of ultracold atoms in magneto-optical trap (MOT) atomic beam with small collimation angle and substantial particle flux is required. Optimal parameters of atomic beam are defined by setup of MOT and Zeeman slower and limited by configuration of oven and collimation tube, which are used for melting solid lithium into vapor and focusing it into a beam. Objective of this work was to find optimal temperatures of existing oven and measure atomic beam properties. The spectra of fluorescence were approximated by sum of two Voigt profiles to calculate collimation angle via Doppler broadening of atomic beam. Doppler shift was measured to calculate the longitudinal velocity.