Stimulated Raman atom-molecule resonance in a Bose-Einstein condensate

Author

Wynar, R.H. ; Freeland, R.S. ; Han, D.J. ; Heinzen, D.J.

Author_Institution

Dept. of Phys., Texas Univ., Austin, TX, USA

fYear

1992

fDate

23-28 May 1992

Firstpage

159

Lastpage

160

Abstract

Summary form only given. We have observed a stimulated Raman resonance between free and bound molecular states of atoms in a Bose-condensed gas. In our experiment, we first produce a Bose-condensed cloud containing about 5/spl times/10/sup 5/ /sup 87/Rb 5/sup 2/S/sub 1/2/ (f=1,m/sub f/=-1) atoms in a magnetic TOP trap, with a typical condensate fraction of about 20%. We then illuminate the atoms with a /spl tau/=10 ms duration pulse of light from two laser beams 1 and 2 of frequency /spl nu//sub 1/ and /spl nu//sub 2/, and intensities I/sub 1/=120 W/cm/sup 2/ and I/sub 2/=2.2 W/cm/sup 2/, respectively. We measure the fraction of atoms N(/spl tau/)/N/sub 0/ remaining after the 10 ms pulse with laser-induced fluorescence.

Keywords

Bose-Einstein condensation; Raman spectra; laser beam effects; magneto-optical effects; radiation pressure; resonant states; rubidium; stimulated scattering; 10 ms; 5/spl times/10/sup 5/ /sup 87/Rb 5/sup 2/S/sub 1/2/ atoms; Bose-Einstein condensate; Bose-condensed cloud; Bose-condensed gas; Rb; bound molecular states; free molecular states; laser beams; laser-induced fluorescence; magnetic trap; ms duration pulse; ms pulse; stimulated Raman atom-molecule resonance; stimulated Raman resonance; Atom lasers; Atomic beams; Atomic measurements; Clouds; Fluorescence; Frequency; Laser beams; Optical pulses; Pulse measurements; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1999. QELS '99. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-576-X

Type

conf

DOI

10.1109/QELS.1999.807467

Filename

807467