Cold and Slow Molecular Beam

Abstract

Employing a two-stage cryogenic buffer gas cell, we produce a cold, hydrodynamically extracted beam of calcium monohydride molecules with a near effusive velocity distribution. Beam dynamics, thermalization and slowing are studied using laser spectroscopy. The key to this hybrid, effusive-like beam source is a "slowing cell" placed immediately after a hydrodynamic, cryogenic source [Patterson et al., J. Chem. Phys., 2007, 126, 154307]. The resulting CaH beams are created in two regimes. One modestly boosted beam has a forward velocity of vf = 65 m/s, a narrow velocity spread, and a flux of 10^9 molecules per pulse. The other has the slowest forward velocity of vf = 40 m/s, a longitudinal temperature of 3.6 K, and a flux of 5x10^8 molecules per pulse.

References in corpus (6)

• Laser cooling of a diatomic molecule
• Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun
• Low-energy molecular collisions in a permanent magnetic trap
• Electrostatic extraction of cold molecules from a cryogenic reservoir
• Mechanism of Collisional Spin Relaxation in Triplet-Sigma Molecules
• Slow beams of massive molecules

Cited by in corpus (49)

• The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules
• Magneto-optical trapping of diatomic molecules
• Laser cooling and slowing of CaF molecules
• Radio Frequency Magneto-Optical Trapping of CaF with High Density
• Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule
• Laser radiation pressure slowing of a molecular beam
• Measurement of the electron's electric dipole moment using YbF molecules: methods and data analysis
• Design for a fountain of YbF molecules to measure the electron's electric dipole moment
• Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
• Strongly interacting ultracold polar molecules
• Opportunities for Fundamental Physics Research with Radioactive Molecules
• Magnetic Trapping of Molecules via Optical Loading and Magnetic 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
• Quantum control of molecules for fundamental physics
• Ultracold spin-polarized mixtures of 2Sigma molecules with S-state atoms: Collisional stability and implications for sympathetic cooling
• Direct laser cooling of calcium monohydride molecules
• BaH molecular spectroscopy with relevance to laser cooling
• High-resolution optical spectroscopy with a buffer-gas-cooled beam of BaH molecules
• Optical cycling of AlF molecules
• Prospects for a Narrow Line MOT in YO
• Radiation Pressure Force from Optical Cycling on a Polyatomic Molecule
• A Zeeman slower for diatomic molecules
• Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho
• Characterization of a cryogenic beam source for atoms and molecules
• Fine and hyperfine interactions in ${}^{171}$YbOH and ${}^{173}$YbOH
• Cryogenic Buffer Gas beams of AlF, CaF, MgF, YbF, Al, Ca, Yb and NO -- a comparison
• Deflection of a Molecular Beam Using the Bichromatic Stimulated Force
• Enantiomer superpositions from matter-wave interference of chiral molecules
• Quantitative theoretical analysis of lifetimes and decay rates relevant in laser cooling BaH
• One dimensional magneto-optical compression of a cold CaF molecular beam
• Theoretical investigation of the HgF radical towards laser cooling and eEDM measurement
• Deceleration of a supersonic beam of SrF molecules to 120 m/s
• Simulation of Cryogenic Buffer Gas Beams
• 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
• Guiding slow polar molecules with a charged wire
• Fast and High-Yield Loading of a D${}_2$ MOT of Potassium from a Cryogenic Buffer Gas Beam
• Simulations of a frequency-chirped magneto-optical trap of MgF
• Prospects for measuring the electron's electric dipole moment with polyatomic molecules in an optical lattice
• Slow molecular beams from a cryogenic buffer gas source
• Hyperfine structure of the ${\mathbf{A}}^1\mathbf{\Pi }$ state of AlCl and its relevance to laser cooling and trapping
• Shaped nozzles for cryogenic buffer gas beam sources
• Slow ground state molecules from matrix isolation sublimation
• Spectroscopy of laser cooling transitions in MgF
• Properties of the ground ${}^3$F${}_2$ state and the excited ${}^3$P${}_0$ state of atomic thorium in cold collisions with ${}^3$He
• Chemistry in a Cryogenic Buffer Gas Cell
• Vibrational branching ratios and hyperfine structure of ${}^{11}$BH and its suitability for laser cooling
• Slow, Continuous Beams of Large Gas Phase Molecules