Accession Number : ADA254000


Title :   Matter-Wave Interferometry with Laser Cooled Atoms


Descriptive Note : Progress rept.


Corporate Author : OREGON STATE UNIV CORVALLIS DEPT OF PHYSICS


Personal Author(s) : McIntyre, David


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254000.pdf


Report Date : Jul 1992


Pagination or Media Count : 12


Abstract : The matter wave source for this experiment will be a cold beam of rubidium atoms leaving an atomic funnel. The funnel uses two-dimensional magneto-optic trapping to achieve transverse cooling as well as spatial compression of the beam. With laser beams from all six directions, the atoms are also cooled, but not trapped, along the axis of the magnetic field. We have two ideas we are pursuing for loading atoms into the funnel. The first is to use atoms from the thermal (200 deg C) beam which are cooled longitudinally with chirped laser cooling. The second is to use a room temperature vapor cell and load atoms from the low velocity tail of the Maxwellian distribution. The second idea would simplify the experiment since the chirped laser cooling could be skipped. The question is whether the vapor cell funnel can produce a beam as intense as the funnel loaded from the cooled atomic beam.


Descriptors :   *ATOMS , *LASER BEAMS , *INTERFEROMETRY , *COOLING , VELOCITY , RUBIDIUM , OPTICS , MAGNETIC FIELDS , TRAPPING(CHARGED PARTICLES)


Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE