1,575 research outputs found
Radio Frequency Magneto-Optical Trapping of CaF with High Density
We demonstrate significantly improved magneto-optical trapping of molecules
using a very slow cryogenic beam source and RF modulated and DC magnetic
fields. The RF MOT confines CaF molecules at a density of
cm, which is an order of magnitude greater than
previous molecular MOTs. Near Doppler-limited temperatures of K
are attained. The achieved density enables future work to directly load optical
tweezers and create optical arrays for quantum simulation.Comment: 5 Pages, 4 Figure
One dimensional magneto-optical compression of a cold CaF molecular beam
We demonstrate with a RF-MOT the one dimensional, transverse magneto-optical
compression of a cold beam of calcium monofluoride (CaF). By continually
alternating the magnetic field direction and laser polarizations of the
magneto-optical trap, a photon scattering rate of 0.4 MHz is
achieved. A 3D model for this RF-MOT, validated by agreement with data,
predicts a 3D RF-MOT capture velocity for CaF of 5 m/s
Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
Laser slowing of CaF molecules down to the capture velocity of a
magneto-optical trap (MOT) for molecules is achieved. Starting from a two-stage
buffer gas beam source, we apply frequency-broadened "white-light" slowing and
observe approximately 6x10^4 CaF molecules with velocities near 10\,m/s. CaF is
a candidate for collisional studies in the mK regime. This work represents a
significant step towards magneto-optical trapping of CaF
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