Accession Number:

ADA426903

Title:

Atom Manipulation Using Optical Fields

Descriptive Note:

Final progress rept. 1 Jul 2000-30 Jun 2004

Corporate Author:

MICHIGAN UNIV REGENTS ANN ARBOR DIV OFRESEARCH DEVELOPMENT AND ADMINISTRATION

Personal Author(s):

Report Date:

2004-09-15

Pagination or Media Count:

7.0

Abstract:

The long range goal of this project was the creation of nanostructures using light fields to manipulate atoms. By passing an atomic beam through one or more standing wave light fields, it is possible to create modulations in the atomic density having periods which are a fraction of the period of the standing wave light fields. Patterns having periods as small as lambda10 were observed using optical masks and clear evidence for matter-wave effects were established. Several theoretical methods for achieving sub-lambda matter wave patterns were developed, Moreover it was shown that it is possible to create optical lattices having reduced periodicity using Raman transitions in a novel atom-field geometry Experiments were carried out in both magneto-optical traps and atomic beams. In both experimental set-ups, pulsed standing wave optical fields were used to excite the atoms. At some later time the atoms were probed by a traveling wave field, revealing the spatial patterns that had evolved as a result of the atom-field interaction.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Optics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE