Characterization of a cryogenic beam source for atoms and molecules

Abstract

We present a combined experimental and theoretical study of beam formation from a cryogenic buffer gas cell. Atoms and molecules are loaded into the cell by laser ablation of a target, and are cooled and swept out of the cell by a flow of cold helium. We study the thermalization and flow dynamics inside the cell and measure how the speed, temperature, divergence and extraction efficiency of the beam are influenced by the helium flow. We use a finite element model to simulate the flow dynamics and use the predictions of this model to interpret our experimental results.

10 pages, 14 figures

Cited by in corpus (17)

• Optical diagnostics of laser-produced plasmas
• Measuring the electric dipole moment of the electron in BaF
• An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
• Methods, Analysis, and the Treatment of Systematic Errors for the Electron Electric Dipole Moment Search in Thorium Monoxide
• A buffer gas beam source for short, intense and slow molecular pulses
• Cold collision and high-resolution spectroscopy of buffer gas cooled BaF Molecule
• Cryogenic Buffer Gas beams of AlF, CaF, MgF, YbF, Al, Ca, Yb and NO -- a comparison
• High-resolution mid-infrared spectroscopy of buffer-gas-cooled methyltrioxorhenium molecules
• Method for traveling-wave deceleration of buffer-gas beams of CH
• Buffer-gas cooling of molecules in the low-density regime: Comparison between simulation and experiment
• Simulation of Cryogenic Buffer Gas Beams
• Low-temperature spectroscopy of the ${}^{12}$C${}_2$H${}_2$ (${\upsilon }_1+{\upsilon }_3$) band in a helium buffer gas
• Influence of source parameters on the longitudinal phase-space distribution of a pulsed cryogenic beam of barium fluoride molecules
• Production of carbon clusters ${\text{C}}_3$ to ${\text{C}}_{12}$ with a cryogenic buffer-gas beam source
• Slow molecular beams from a cryogenic buffer gas source
• Shaped nozzles for cryogenic buffer gas beam sources
• Magneto-Optical Trapping of a Metal Hydride Molecule