LASER-INDUCED IONIZING COLLISIONS OF ULTRACOLD KRYPTON GAS IN THE 1(S5) METASTABLE STATE

被引：59

作者：

KATORI, H

SHIMIZU, F

机构：

[1] Department of Applied Physics, University of Tokyo, Bunkyo-ku

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.73.2555

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The line shape of laser-induced ionizing collisions of ultracold Kr gas is investigated near the 1s(5)[4p(5)5s:P-3(2)] and 2p(9)[4p(5)5p:D-3(3)] transition. The rate increases several times when the laser is red tuned by a few times of the natural width, while it sharply decreases for a slight blue detuning. This frequency dependence of the collision rate is due to the collision dynamics characteristic of ultracold atoms in a near-resonant light. Our experimental results on metastable Kr atoms show a good qualitative agreement with semiclassical Monte Carlo simulation of the cold collision dynamics.

引用

收藏

页码：2555 / 2558

页数：4

相关论文

共 23 条

[1] 2-COLOR SPECTROSCOPY OF COLLIDING ULTRACOLD ATOMS [J].

BAGNATO, V ;

MARCASSA, L ;

TSAO, C ;

WANG, Y ;

WEINER, J .

PHYSICAL REVIEW LETTERS, 1993, 70 (21) :3225-3228

[2] MAGNETOOPTICAL TRAPPING OF METASTABLE HELIUM - COLLISIONS IN THE PRESENCE OF RESONANT LIGHT [J].

BARDOU, F ;

EMILE, O ;

COURTY, JM ;

WESTBROOK, CI ;

ASPECT, A .

EUROPHYSICS LETTERS, 1992, 20 (08) :681-686

[3] SECONDARY ELECTRON YIELDS FROM CU-BE-O SURFACE BY THERMAL CO, N2, AND NOBLE GAS METASTABLES [J].

BORST, WL .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1971, 42 (10) :1543-&

[4] RADIATIVE LIFETIMES AND 2-BODY COLLISIONAL DEACTIVATION RATE CONSTANTS IN ARGON FOR KR(4P 55P) AND KR(4P 55P') STATES [J].

CHANG, RSF ;

HORIGUCHI, H ;

SETSER, DW .

JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (02) :778-790

[5] COMPARISON OF TRAP-LOSS COLLISION SPECTRA FOR RB-85 AND RB-87 [J].

FENG, P ;

HOFFMANN, D ;

WALKER, T .

PHYSICAL REVIEW A, 1993, 47 (05) :R3495-R3498

[6] LIFETIMES OF SOME LEVELS BELONGING TO 4P55P AND 4P56P CONFIGURATIONS OF KRI [J].

FONSECA, MV ;

CAMPOS, J .

PHYSICAL REVIEW A, 1978, 17 (03) :1080-1082

[7] EXOERGIC COLLISIONS OF COLD NA-STAR-NA [J].

GALLAGHER, A ;

PRITCHARD, DE .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :957-960

[8] OBSERVATION OF ASSOCIATIVE IONIZATION OF ULTRACOLD LASER-TRAPPED SODIUM ATOMS [J].

GOULD, PL ;

LETT, PD ;

JULIENNE, PS ;

PHILLIPS, WD ;

THORSHEIM, HR ;

WEINER, J .

PHYSICAL REVIEW LETTERS, 1988, 60 (09) :788-791

[9] EXCITED-STATE COLLISIONS OF TRAPPED RB-85 ATOMS [J].

HOFFMANN, D ;

FENG, P ;

WILLIAMSON, RS ;

WALKER, T .

PHYSICAL REVIEW LETTERS, 1992, 69 (05) :753-756

[10]

JULIENNE P, 1992, ADV ATOMIC MOL OPTIC