An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing

Abstract

Using frequency-chirped radiation pressure slowing, we precisely control the velocity of a pulsed CaF molecular beam down to a few m/s, compressing its velocity spread by a factor of 10 while retaining high intensity: at a velocity of 15~m/s the flux, measured 1.3~m from the source, is 7$\times$10${}^5$ molecules per cm${}^2$ per shot in a single rovibrational state. The beam is suitable for loading a magneto-optical trap or, when combined with transverse laser cooling, improving the precision of spectroscopic measurements that test fundamental physics. We compare the frequency-chirped slowing method with the more commonly used frequency-broadened slowing method.

19 pages, 8 figures. Extension of earlier version to include detailed comparison of slowing methods

References in corpus (12)

• Magneto-optical trapping of a diatomic molecule
• Stability of the proton-to-electron mass ratio
• Sisyphus Cooling of Electrically Trapped Polyatomic Molecules
• Stopping supersonic oxygen with a series of pulsed electromagnetic coils: A molecular coilgun
• Magneto-Optical Trap for Polar Molecules
• Rotational state microwave mixing for laser cooling of complex diatomic molecules
• Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
• Magneto-optical trapping forces for atoms and molecules with complex level structures
• Improved magneto-optical trapping of a diatomic molecule
• Static trapping of polar molecules in a traveling wave decelerator
• Opto-Electrical Cooling of Polar Molecules
• Principles and design of a Zeeman-Sisyphus decelerator for molecular beams

Cited by in corpus (46)

• Molecules cooled below the Doppler limit
• Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules
• Radio Frequency Magneto-Optical Trapping of CaF with High Density
• Laser Cooling of Optically Trapped Molecules
• Ultracold molecules for measuring the electron's electric dipole moment
• Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule
• Laser-Cooled Polyatomic Molecules for Improved Electron Electric Dipole Moment Searches
• Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
• Magnetic trapping and coherent control of laser-cooled molecules
• Quantum state manipulation and cooling of ultracold molecules
• 1D Magneto-Optical Trap of Polyatomic Molecules
• Laser cooling of molecules
• Laser cooled molecules
• Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
• Characteristics of a magneto-optical trap of molecules
• Measuring the stability of fundamental constants with a network of clocks
• Methods for measuring the electron EDM using ultracold YbF molecules
• A buffer gas beam source for short, intense and slow molecular pulses
• Collisions Between Ultracold Molecules and Atoms in a Magnetic Trap
• Enhanced Yield from a Cryogenic Buffer Gas Beam Source via Excited State Chemistry
• Quantum control of molecules for fundamental physics
• Coherent Bichromatic Force Deflection of Molecules
• Radiative deflection of a BaF molecular beam from the optical cycling
• High-resolution optical spectroscopy with a buffer-gas-cooled beam of BaH molecules
• An ultracold molecular beam for testing fundamental physics
• Laser cooling and magneto-optical trapping of molecules analyzed using optical Bloch equations and the Fokker-Planck-Kramers equation
• A Zeeman slower for diatomic molecules
• Cryogenic Buffer Gas beams of AlF, CaF, MgF, YbF, Al, Ca, Yb and NO -- a comparison
• Molecular Laser-Cooling in a Dynamically Tunable Repulsive Optical Trap
• Deflection of a Molecular Beam Using the Bichromatic Stimulated Force
• Towards improved loading, cooling, and trapping of molecules in magneto-optical traps
• Bright, continuous beams of cold free radicals
• Suppressed spontaneous emission for coherent momentum transfer
• Bichromatic Imaging of Single Molecules in an Optical Tweezer Array
• Characterizing the Zeeman slowing force for ${}^{40}$Ca${}^{19}$F molecules
• A general Zeeman slower for type-II transitions and polar molecules
• Speeding Up Particle Slowing using Shortcuts to Adiabaticity
• Type-II Zeeman slowing: Characterization and comparison to conventional radiative beam slowing schemes
• Simulations of a frequency-chirped magneto-optical trap of MgF
• Fast and High-Yield Loading of a D${}_2$ MOT of Potassium from a Cryogenic Buffer Gas Beam
• Collisions in a dual-species magneto-optical trap of molecules and atoms
• Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
• Slow molecular beams from a cryogenic buffer gas source
• Spectroscopy of laser cooling transitions in MgF
• Slowing YbF molecules using radiation pressure
• Optical pumping and laser slowing of a heavy molecule