Isotope selective loading of an ion trap using resonance-enhanced two-photon ionization

被引：112

作者：

Kjærgaard, N ^{[1
]}

Hornekær, L ^{[1
]}

Thommesen, AM ^{[1
]}

Videsen, Z ^{[1
]}

Drewsen, M ^{[1
]}

机构：

[1] Univ Aarhus, Inst Phys & Astron, Aarhus 8000 C, Denmark

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2000年 / 71卷 / 02期

关键词：

D O I：

10.1007/s003400000296

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have demonstrated that resonance-enhanced two-photon ionization of atomic beams provides an effective tool for isotope selective loading of ions into a linear Paul trap. Using a tunable, narrow-bandwidth, continuous wave (cw) laser system for the ionization process, we have succeeded in producing Mg+ and Ca+ ions at rates controlled by the atomic beam flux, the laser intensity, and the laser frequency detuning from resonance. We have observed that with a proper choice of control parameters, it is rather easy to load a specific number of ions into a string. This observation has direct applications in quantum optics and quantum computation experiments. Furthermore, resonant photoionization loading facilitates the formation of large isotope-pure Coulomb crystals.

引用

页码：207 / 210

页数：4

共 21 条

[1] MULTIPLE-SHELL STRUCTURES OF LASER-COOLED MG-24(+) IONS IN A QUADRUPOLE STORAGE RING [J].

BIRKL, G ;

KASSNER, S ;

WALTHER, H .

NATURE, 1992, 357 (6376) :310-313

[2] QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].

CIRAC, JI ;

ZOLLER, P .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094

[3] OPERATING PARAMETERS OF A QUADRUPOLE IN A GROUNDED CYLINDRICAL HOUSING [J].

DENISON, DR .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1971, 8 (01) :266-&

[4] Large ion crystals in a linear Paul trap [J].

Drewsen, M ;

Brodersen, C ;

Hornekaer, L ;

Hangst, JS ;

Schiffer, JP .

PHYSICAL REVIEW LETTERS, 1998, 81 (14) :2878-2881

[5] YOUNG INTERFERENCE EXPERIMENT WITH LIGHT SCATTERED FROM 2 ATOMS [J].

EICHMANN, U ;

BERGQUIST, JC ;

BOLLINGER, JJ ;

GILLIGAN, JM ;

ITANO, WM ;

WINELAND, DJ ;

RAIZEN, MG .

PHYSICAL REVIEW LETTERS, 1993, 70 (16) :2359-2362

[6] Selective laser ablation/ionization for ion trap mass spectrometry: Resonant laser ablation [J].

Gill, CG ;

Garrett, AW ;

Hemberger, PH ;

Nogar, NS .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 1996, 51 (08) :851-862

[7] RESONANCE-ENHANCED MULTIPHOTON IONIZATION SPECTROSCOPY IN AN ION TRAP DETECTOR [J].

GOERINGER, DE ;

WHITTEN, WB ;

RAMSEY, JM .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1991, 106 :175-189

[8] EXTENDED MEASUREMENTS OF ISOTOPE SHIFTS IN MG-I [J].

HALLSTADIUS, L .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1979, 291 (03) :203-206

[9] Cooling the collective motion of trapped ions to initialize a quantum register [J].

King, BE ;

Wood, CS ;

Myatt, CJ ;

Turchette, QA ;

Leibfried, D ;

Itano, WM ;

Monroe, C ;

Wineland, DJ .

PHYSICAL REVIEW LETTERS, 1998, 81 (07) :1525-1528

[10] LEVEL-CROSSING EXPERIMENTS IN FIRST EXCITED P-1(1) STATES OF ALKALINE-EARTHS [J].

KLUGE, HJ ;

SAUTER, H .

ZEITSCHRIFT FUR PHYSIK, 1974, 270 (04) :295-309

← 1 2 3 →