Chip-scale atomic magnetometer

被引：385

作者：

Schwindt, PDD ^{[1
]}

Knappe, S

Shah, V

Hollberg, L

Kitching, J

Liew, LA

Moreland, J

机构：

[1] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO 80305 USA

[2] Natl Inst Stand & Technol, Electromagnet Div, Boulder, CO 80305 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 26期

关键词：

D O I：

10.1063/1.1839274

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using the techniques of microelectromechanical systems, we have constructed a small low-power magnetic sensor based on alkali atoms. We use a coherent population trapping resonance to probe the interaction of the atoms' magnetic moment with a magnetic field, and we detect changes in the magnetic flux density with a sensitivity of 50 pT Hz(-1/2) at 10 Hz. The magnetic sensor has a size of 12 mm(3) and dissipates 195 mW of power. Further improvements in size, power dissipation, and magnetic field sensitivity are immediately foreseeable, and such a device could provide a hand-held battery-operated magnetometer with an atom shot-noise limited sensitivity of 0.05 pT Hz(-1/2).

引用

页码：6409 / 6411

页数：3

共 17 条

[1] High-sensitivity atomic magnetometer unaffected by spin-exchange relaxation [J].

Allred, JC ;

Lyman, RN ;

Kornack, TW ;

Romalis, MV .

PHYSICAL REVIEW LETTERS, 2002, 89 (13) :130801-130801

[2] Coherent population trapping in laser spectroscopy [J].

Arimondo, E .

PROGRESS IN OPTICS, VOL XXXV, 1996, 35 :257-354

[3] A laser-pumped magnetometer for the mapping of human cardiomagnetic fields [J].

Bison, G ;

Wynands, R ;

Weis, A .

APPLIED PHYSICS B-LASERS AND OPTICS, 2003, 76 (03) :325-328

[4] Nonlinear magneto-optical rotation with frequency-modulated light [J].

Budker, D ;

Kimball, DF ;

Yashchuk, VV ;

Zolotorev, M .

PHYSICAL REVIEW A, 2002, 65 (05) :4

[5] Sensitive magnetometry based on nonlinear magneto-optical rotation [J].

Budker, D ;

Kimball, DF ;

Rochester, SM ;

Yashchuk, VV ;

Zolotorev, M .

PHYSICAL REVIEW A, 2000, 62 (04) :7

[6] Superconducting magnetic gradiometers for underwater target detection [J].

Clem, TR .

NAVAL ENGINEERS JOURNAL, 1998, 110 (01) :139-149

[7] MODULATION OF A LIGHT BEAM BY PRECESSING ABSORBING ATOMS [J].

DEHMELT, HG .

PHYSICAL REVIEW, 1957, 105 (06) :1924-1925

[8] Intense, narrow atomic-clock resonances [J].

Jau, YY ;

Post, AB ;

Kuzma, NN ;

Braun, AM ;

Romalis, MV ;

Happer, W .

PHYSICAL REVIEW LETTERS, 2004, 92 (11) :110801-1

[9] A microwave frequency reference based on VCSEL-driven dark line resonances in Cs vapor [J].

Kitching, J ;

Knappe, S ;

Vukicevic, N ;

Hollberg, L ;

Wynands, R ;

Weidmann, W .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2000, 49 (06) :1313-1317

[10] A microfabricated atomic clock [J].

Knappe, S ;

Shah, V ;

Schwindt, PDD ;

Hollberg, L ;

Kitching, J ;

Liew, LA ;

Moreland, J .

APPLIED PHYSICS LETTERS, 2004, 85 (09) :1460-1462

← 1 2 →