High-temperature high-pressure all-metal pulsed source of van der Waals dimers: Towards the Einstein-Podolsky-Rosen experiment

An all-metal pulsed source of van der Waals (vdW) dimers was constructed; it operates at temperatures up to 1000 K and carrier gas stagnation pressures up to 10 bars. Performance of the source was demonstrated in the production and spectroscopy of both CdAr and Cd(2) molecules in a supersonic beam expansion. Simulation of the recorded laser induced fluorescence (LIF) excitation spectra using the B(3)1(5(3)P(1)) ← X(1)0(+)(5(1)S(0)) and b(3)0(u) (+)(5(3)P(1))←X(1)0(g) (+)(5(1)S(0)) transitions in CdAr and Cd(2), respectively, showed that these molecules were produced with a rotational temperature in the range from 3 K to 19 K. The source was incorporated into an experimental set-up dedicated to the realization of Bohm's spin-1∕2 particle version of the Einstein-Podolsky-Rosen experiment for ((111)Cd)(2) molecules.