BUFFER-GAS LOADING OF ATOMS AND MOLECULES INTO A MAGNETIC TRAP

被引:230
作者
DOYLE, JM [1 ]
FRIEDRICH, B [1 ]
KIM, J [1 ]
PATTERSON, D [1 ]
机构
[1] HARVARD UNIV, DEPT CHEM, CAMBRIDGE, MA 02138 USA
来源
PHYSICAL REVIEW A | 1995年 / 52卷 / 04期
关键词
D O I
10.1103/PhysRevA.52.R2515
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a method for loading paramagnetic atoms or molecules into a magnetic trap. A He-3 buffer gas is employed to thermalize atoms or molecules to a temperature of approximately 240 mK, lower than the depth of the trap. A model is described that indicates an initial loading density of approximately 10(13) cm(-3). Once loading has taken place the buffer gas is removed by cryopumping. Evaporative cooling can then be applied to further lower the temperature and increase the density of the trapped sample.
引用
收藏
页码:R2515 / R2518
页数:4
相关论文
共 46 条
  • [1] EVAPORATIVE COOLING IN A CROSSED DIPOLE TRAP
    ADAMS, CS
    LEE, HJ
    DAVIDSON, N
    KASEVICH, M
    CHU, S
    [J]. PHYSICAL REVIEW LETTERS, 1995, 74 (18) : 3577 - 3580
  • [2] EVAPORATIVE COOLING OF SODIUM ATOMS
    DAVIS, KB
    MEWES, MO
    JOFFE, MA
    ANDREWS, MR
    KETTERLE, W
    [J]. PHYSICAL REVIEW LETTERS, 1995, 74 (26) : 5202 - 5205
  • [3] DAVIS KB, COMMUNICATION
  • [4] LASER DIAGNOSTICS OF PLASMA-ETCHING - MEASUREMENT OF CL2+ IN A CHLORINE DISCHARGE
    DONNELLY, VM
    FLAMM, DL
    COLLINS, G
    [J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1982, 21 (03): : 817 - 823
  • [5] HYDROGEN IN THE SUBMILLIKELVIN REGIME - STICKING PROBABILITY ON SUPERFLUID HE-4
    DOYLE, JM
    SANDBERG, JC
    YU, IA
    CESAR, CL
    KLEPPNER, D
    GREYTAK, TJ
    [J]. PHYSICAL REVIEW LETTERS, 1991, 67 (05) : 603 - 606
  • [6] EVAPORATIVE COOLING OF ATOMIC-HYDROGEN - THEORY OF COOLING AND PROGRESS TOWARDS THE BOSE-EINSTEIN TRANSITION
    DOYLE, JM
    SANDBERG, JC
    YU, IA
    CESAR, CL
    KLEPPNER, D
    GREYTAK, TJ
    [J]. PHYSICA B, 1994, 194 : 13 - 14
  • [7] ENERGY-DISTRIBUTIONS OF TRAPPED ATOMIC-HYDROGEN
    DOYLE, JM
    SANDBERG, JC
    MASUHARA, N
    YU, IA
    KLEPPNER, D
    GREYTAK, TJ
    [J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1989, 6 (11) : 2244 - 2248
  • [8] DOYLE JM, 1994, B AM PHYS SOC, V39, P1166
  • [9] DOYLE JM, 1991, THESIS MIT
  • [10] ALIGNMENT AND TRAPPING OF MOLECULES IN INTENSE LASER FIELDS
    FRIEDRICH, B
    HERSCHBACH, D
    [J]. PHYSICAL REVIEW LETTERS, 1995, 74 (23) : 4623 - 4626