LASER COOLING OF TRAPPED CA+ AND MEASUREMENT OF THE 32D5/2 STATE LIFETIME

被引：27

作者：

URABE, S

WATANABE, M

IMAJO, H

HAYASAKA, K

机构：

[1] Kansai Advanced Research Center, Communications Research Laboratory, Nishi-ku, Kobe-shi, Hyogo, 651-24, Iwaoka

来源：

OPTICS LETTERS | 1992年 / 17卷 / 16期

关键词：

D O I：

10.1364/OL.17.001140

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe the laser cooling of Ca+ ions in a rf ion trap and the measurement of its 3 2D5/2 state lifetime. The ions are cooled to below 1 K by radiation from a frequency-doubled Ti:sapphire laser and a laser diode. The radiative lifetime is measured by observing the change in fluorescence when the ions, which are optically pumped to the metastable state, return to the cooling cycle. The lifetime of the 3 2D5/2 state is measured to be 0.77 +/- 0.07 s.

引用

页码：1140 / 1142

页数：3

共 15 条

[1]

DEVOE RG, 1989, PHYS REV A, V39, P4632

[2]

GALLANGER A, 1967, PHYS REV, V157, P124

[3] GENERATION OF CONTINUOUS-WAVE 194-NM RADIATION BY SUM-FREQUENCY MIXING IN AN EXTERNAL RING CAVITY [J].

HEMMATI, H ;

BERGQUIST, JC ;

ITANO, WM .

OPTICS LETTERS, 1983, 8 (02) :73-75

[4] LASER SPECTROSCOPY OF TRAPPED ATOMIC IONS [J].

ITANO, WM ;

BERGQUIST, JC ;

WINELAND, DJ .

SCIENCE, 1987, 237 (4815) :612-617

[5] DOPPLER-FREE OPTICAL SPECTROSCOPY ON THE BA+ MONO-ION OSCILLATOR [J].

JANIK, G ;

NAGOURNEY, W ;

DEHMELT, H .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1985, 2 (08) :1251-1257

[6] LASER COOLING OF TRAPPED YB+ [J].

KLEIN, HA ;

BELL, AS ;

BARWOOD, GP ;

GILL, P .

APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1990, 50 (01) :13-17

[7] SINGLE, TRAPPED SR+ ATOM - LASER COOLING AND QUANTUM JUMPS BY MEANS OF THE 4D2D5/2-5S2S1/2 TRANSITION [J].

MADEJ, AA ;

SANKEY, JD .

OPTICS LETTERS, 1990, 15 (11) :634-636

[8] QUANTUM JUMPS AND THE SINGLE TRAPPED BARIUM ION - DETERMINATION OF COLLISIONAL QUENCHING RATES FOR THE 5D D-2(5/2) LEVEL [J].

MADEJ, AA ;

SANKEY, JD .

PHYSICAL REVIEW A, 1990, 41 (05) :2621-2630

[9] SHELVED OPTICAL ELECTRON AMPLIFIER - OBSERVATION OF QUANTUM JUMPS [J].

NAGOURNEY, W ;

SANDBERG, J ;

DEHMELT, H .

PHYSICAL REVIEW LETTERS, 1986, 56 (26) :2797-2799

[10] OPTICAL-SIDEBAND COOLING OF VISIBLE ATOM CLOUD CONFINED IN PARABOLIC WELL [J].

NEUHAUSER, W ;

HOHENSTATT, M ;

TOSCHEK, P ;

DEHMELT, H .

PHYSICAL REVIEW LETTERS, 1978, 41 (04) :233-236

← 1 2 →