Generation of a slow and continuous cesium atomic beam for an atomic clock

Park, Sang Eon; Lee, Ho Seong; Shin, Eun-joo; Kwon, Taeg Yong; Yang, Sung Hoon; Cho, Hyuck

doi:10.1364/josab.19.002595

Cited by 19 publications

(8 citation statements)

References 29 publications

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“…In this paper we examine the interaction of atoms with counterpropagating stochastic plane waves (a chaotic-field model, where the real and imaginary parts of the complex amplitude of the electrical field fluctuate independently), and show that in this case, as in the case of the counterpropagating laser pulses or bichromatic field, the atoms can be confined and cooled by the same field. The trap under consideration combines the idea of the confinement of atoms by the counter-propagating waves and their cooling by white light [14,15,16] using the same laser radiation. This paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

Trapping of atoms by the counter-propagating stochastic light waves

Romanenko

Yatsenko

2017

Optics Communications

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We calculate the temperature of the atoms in the field of counter-propagating stochastic light waves (the chaotic-field model). We show that the temperature of the atomic ensemble depends on the autocorrelation time of the waves, their intensity and the detuning of the carrier frequency of the waves from the atomic transition frequency. The field can form a onedimensional trap for atoms, as is readily seen from our previous investigation of light-pressure force on an atom in counter-propagating stochastic light waves [V. I. Romanenko, B. W. Shore, L. P. Yatsenko, Opt. Commun. 268 (2006) 121-132]. We carry out numerical simulation of the atomic ensemble using paramaters appropriate for sodium atoms. Analyzing the known investigation of the light-pressure force on atoms and their motion in the counter-propagating polychromatic waves, we suggest an hypothesis that any polychromatic counter-propagating waves that have a discrete spectrum, or waves described by a stationary stochastic process, one of which repeats the other, can form a trap for atoms.

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Section: Introductionmentioning

confidence: 99%

Trapping of atoms by the counter-propagating stochastic light waves

Romanenko

Yatsenko

2017

Optics Communications

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“…Low-velocity (v ~ 10 m/s) intense atomic beams have found applications in developing novel atomic frequency standards [1][2][3][4][5][6][7], matter-wave interferometer quantum sensors [8][9] and cold atom nanolithography [10]. A cold atomic beam realized by laser-accelerating an ensemble of ultra-cold (T < 1 mK) atoms from a laser cooled magneto-optical trap (MOT) has the unique advantage of generating a useful slow-moving atomic beam just outside the volume of a cold atom trap and hence could greatly reduce the size of the physics package of the instrument.…”

Section: Introductionmentioning

confidence: 99%

MOT-based continuous cold Cs-beam atomic clock

Wang

Iyanu

2010

2010 IEEE International Frequency Control Symposium

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In this paper we report our design and experimental results towards demonstration of a magneto optical trap (MOT)-based cold Cs-beam atomic clock. We generated a continuous cold Cs beam from a Cs MOT by perturbing the MOT potential and measured the longitudinal velocity of the Cs beam to be 7 m/s. In order to separate the atomic beam from the MOT laser beam, we used a onedimensional optical molasses to deflect the Cs beam through an angle of 30 o before the atomic beam enters the microwave cavity. Our Cs beam has an instantaneous atomic flux of 3.6 × 10 10 atoms/s when operated in pulsed mode and a continuous flux of 2 × 10 8 atoms/s. Under current experimental conditions, the observed cold Cs atomic beam parameters infer a shortterm, shot-noise limited Allan standard deviation of 2.7 × 10 -13 τ -1/2 (τ is the averaging time) for the cold Cs beam clock under development.

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“…White light slowing has been used to produce a beam with up to 2 × 10 10 Cs atoms/s [8]. The Zeeman slower [9] requires less laser power.…”

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confidence: 99%

High flux source of cold rubidium atoms

Slowe

Vernac

Hau

2005

Review of Scientific Instruments

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We report the production of a continuous, slow, and cold beam of 87 Rb atoms with an unprecedented flux of 3.2 × 10 12 atoms/s and a temperature of a few milliKelvin. Hot atoms are emitted from a Rb candlestick atomic beam source and transversely cooled and collimated by a 20 cm long atomic collimator section, augmenting overall beam flux by a factor of 50. The atomic beam is then decelerated and longitudinally cooled by Zeeman slowing.

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Generation of a slow and continuous cesium atomic beam for an atomic clock

Cited by 19 publications

References 29 publications

Trapping of atoms by the counter-propagating stochastic light waves

Trapping of atoms by the counter-propagating stochastic light waves

MOT-based continuous cold Cs-beam atomic clock

High flux source of cold rubidium atoms

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