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| Two areas of research are explored in this group: |
| 1. |
Ultra-cold Studies |
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A variety of free-space elements for atom optics (waveguides, funnels, beam
splitters, etc.) based on hollow (vortex) laser beams are being developed to
manipulate cold neutral atoms. Two-dimensional spatial light modulators are
exploited to create nearly diffraction-free (Bessel) beams with one or more
dark channels. From the coherent transport of entangled atoms to the study
of atoms in restricted dimensions, hollow laser beams are providing a unique
environment for developing new technology and studying fundamental physics.
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| 2. |
Ultra-fast Studies |
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Intense femtosecond laser pulses are employed to view and follow the
collective motion of atoms in small molecules. State-of-the-art
technologies (pulse shaping, genetic feedback algorithms and fast-frame
imaging) are exploited to decouple fundamental modes (bending, stretching,
dissociation and ionization). Freezing the atomic motion allows the
dynamics to be controlled and specific decay channels to be enhanced.
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