Multiple all optical BECs

Time of flight pictures of the atomic cloud towards the transition to a BEC.
We have demonsatrated an all optical technique to evaporatively produce sodium Bose Einstein condensates (BEC). We use a crossed-dipole trap formed from light near 1 micron. In addition, we introduce photoassociation as diagnostic of the trap loading process, and show that it can be used to detect the onset of Bose-Einstein condensation.

Finally, we have demonstrated that the production of multiple condensates with this technique is also in a straight forward way archievable.

Four crossed dipole traps generated by retroreflecting the trapping beams. After forced evaporation four BECs have been created.
Picture of the experimental setup for the dipole trap.
Paper: All-optical generation and photoassociative probing of sodium Bose-Einstein condensates

Former Research:

· Optical Frequency Standard

· Dark Atom - Molecule States

· ATOMICS (Atom Optics with Optical Micro Structures)

· All Optical BEC