SPIN RELAXATION OF OPTICALLY TRAPPED ATOMS BY LIGHT-SCATTERING

被引:73
作者
CLINE, RA
MILLER, JD
MATTHEWS, MR
HEINZEN, DJ
机构
[1] Department of Physics, The University of Texas at Austin, Austin, TX
关键词
D O I
10.1364/OL.19.000207
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We study spin relaxation of optically trapped atoms that is due to light scattering from the trap laser. We observe relaxation times greater than 2 s for ground-state hyperfine-level populations of Rb-85 atoms trapped in an optical dipole force trap operating as much as 65 nm to the red of the D1 line. The measured relaxation rate can be more than 100 times slower than the atoms' total spontaneous scatter rate from the trap laser. This enhancement in atomic ground-state lifetime is due to an interference effect in spontaneous Raman scattering far from atomic resonance.
引用
收藏
页码:207 / 209
页数:3
相关论文
共 20 条
[1]   EXPERIMENTAL-OBSERVATION OF OPTICALLY TRAPPED ATOMS [J].
CHU, S ;
BJORKHOLM, JE ;
ASHKIN, A ;
CABLE, A .
PHYSICAL REVIEW LETTERS, 1986, 57 (03) :314-317
[2]  
COHENTANNOUDJII C, 1972, REV MOD PHYS, V44, P169
[3]   MULTIPLY LOADED, AC MAGNETIC TRAP FOR NEUTRAL ATOMS [J].
CORNELL, EA ;
MONROE, C ;
WIEMAN, CE .
PHYSICAL REVIEW LETTERS, 1991, 67 (18) :2439-2442
[4]   LASER-COOLED CS FREQUENCY STANDARD AND A MEASUREMENT OF THE FREQUENCY-SHIFT DUE TO ULTRACOLD COLLISIONS [J].
GIBBLE, K ;
CHU, S .
PHYSICAL REVIEW LETTERS, 1993, 70 (12) :1771-1774
[5]   FUTURE SLOW-ATOM FREQUENCY STANDARDS [J].
GIBBLE, K ;
CHU, S .
METROLOGIA, 1992, 29 (02) :201-212
[6]   MOTION OF ATOMS IN A RADIATION TRAP [J].
GORDON, JP ;
ASHKIN, A .
PHYSICAL REVIEW A, 1980, 21 (05) :1606-1617
[7]   LASER SPECTROSCOPY OF TRAPPED ATOMIC IONS [J].
ITANO, WM ;
BERGQUIST, JC ;
WINELAND, DJ .
SCIENCE, 1987, 237 (4815) :612-617
[8]   HIGH-DENSITIES OF COLD ATOMS IN A DARK SPONTANEOUS-FORCE OPTICAL TRAP [J].
KETTERLE, W ;
DAVIS, KB ;
JOFFE, MA ;
MARTIN, A ;
PRITCHARD, DE .
PHYSICAL REVIEW LETTERS, 1993, 70 (15) :2253-2256
[9]  
LOUDON R, 1983, QUANTUM THEORY LIGHT, P315
[10]   RF SPECTROSCOPY OF TRAPPED NEUTRAL ATOMS [J].
MARTIN, AG ;
HELMERSON, K ;
BAGNATO, VS ;
LAFYATIS, GP ;
PRITCHARD, DE .
PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2431-2434