06/17/08

 Recent results:

  1. Lock-in detection of small number of cold atoms. (Preprint)

  2. Sub-doppler cooling in optical molasses to reach 7 micro-kelvin temperature of atomic cloud.     

  3. Reflection of atoms from thin magnetic film. (movie) (TOF signal)

  4.Production of a source of cold atomic beam with a high flux of 2×10¹⁰  atoms/s. using 2D+MOT to achieve high atomic density in MOT. (Picture of atomic beam and subsequently beam loaded MOT)

 5. Measurement of the van der Waals force using reflection of cold atoms from magnetic thin film atom mirrors. (Thesis)

6. Ultra-fast loading ( within 500msec) of large number (about 10¹⁰) of cold atoms into a 3D-MOT  from 2D⁺MOT source of cold atomic beam .

7. Loading of 5×10⁷ atoms into a crossed optical dipole trap formed with focused CO₂ Laser beams. (Images)

8. Evaporative cooling in a CO₂ Laser crossed dipole trap. (images)

9. Production of Bose-Einstein condensation in a crossed optical dipole trap with . 10⁵ atoms in the condensate (Images)

10. Production of Bose-Einstein condensation in a CO₂ Laser 1D Optical lattice with 82,000 atoms in the condensate. (Images)

11. Observation of mean-field effects in the dynamics of BEC produced in the 1D optical lattice.

Current research activities:

1. Realization of Bose-Einstein condensation of  ⁸⁵Rb atoms in a CO₂ laser 1D optical lattice using Feshbach resonance.