• Design of a Miniaturized High-Performance

    Abstract. A miniaturized high-performance rubidium atomic frequency standard (RAFS) is introduced in this paper. Physics package is composed of a newly developed slotted tube microwave cavity and a 87 Rb spectral lamp with Xe as starter gas. Optical and hyperfine filter techniques are used in the design of the physics package.

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  • Atomic frequency standards and clocks - Institute of Physics

    Atomic frequency standards first appeared some twenty years ago and since about 1955 interest has grown steadily in the field. Many national and private organizations have engaged in research and development on practical devices. Today, atomic frequency standards of various types are available commercially. Although these devices are already finding a large number of applications, it is

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  • - New Generation of a Mobile Primary Frequency

    New generation of a mobile primary frequency standard based on cold atoms S T Müller 1, J de Martin Júnior 1, R D Pechoneri 1, P Santa Catharina1, V S Bag

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  • Cell clocks – Atomic Frequency Standards

    Very often, only atomic clocks can guarantee the required high level of accuracy and stability. In the current scenario of atomic frequency standards, vapor-cell clocks are particularly suited to be employed in activities that demand for good frequency stability performances joined to compactness, reliability and low power consumption. Recently, due to better performing laser sources and to

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  • AIREX: Atomic frequency standards: Survey and

    There are no files associated with this item. title: Atomic frequency standards: Survey and forecast: Author(eng) Vanier, J.

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  • MINIATURE ATOMIC FREQUENCY STANDARD

    Home; Award Details; MINIATURE ATOMIC FREQUENCY STANDARD DESIGN STUDY. Printer-friendly version. Award Information

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  • Caesium Atomic Clocks: Function, Performance and Applications

    This paper gives a survey on currently available commercial caesium clocks and primary standards developed in national metrology institutes. 1. Introduction The accurate measurement of time and frequency is vital to the success of many fields of science and technology. Examples from atomic physics are atom-photon interactions, atomic collisions, and atomic interactions with static and

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  • atomic frequency standards a survey - wach

    Atomic Frequency Standards: A Survey - IEEE Xplore. the functions of atomic applications are rubidium grs cell device+ CeIJium berm and. As in the stmdanb used m rad scien* frequency standards. The 1966 survey. Read More. EndRun delivers atomic frequency standard performance in . Jan 31, 2017 . EndRun Technologies, a provider of precision time and frequency solutions, announced at the

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  • Quantum Projection Noise in an Atomic Fountain: A High

    A pioneering study of the influence of the quantum measurement noise in frequency standards using two level atoms has been reported by Itano et al. [8]. If an atomic system is prepared in a linear superposition jcl › ajgl 1bjelof the two states jgl and jel and subject to a measurement indicating whether the system is in jgl or jel, quantum mechanics predicts that the probability of finding

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  • Caesium Atomic Clocks: Function, Performance and Applications

    This paper gives a survey on currently available commercial caesium clocks and primary standards developed in national metrology institutes. 1. Introduction The accurate measurement of time and frequency is vital to the success of many fields of science and technology. Examples from atomic physics are atom-photon interactions, atomic collisions, and atomic interactions with static and

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  • A Review of Contemporary Atomic Frequency Standards

    Here we present a survey of current and future atomic frequency standards. We analyze how frequency standard performance scales with physical parameters, project future frequency standard performance, and identify key applications where we anticipate these frequency standards will make a substantial impact. Time and frequency terminology and an overview of atomic frequency standard

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  • HYDROGEN MASER FREQUENCY COMPARISON

    OSTI.GOV Journal Article: HYDROGEN MASER FREQUENCY COMPARISON WITH SWISS CESIUM ATOMIC BEAM STANDARD. HYDROGEN MASER FREQUENCY COMPARISON WITH SWISS CESIUM ATOMIC BEAM STANDARD. Full Record; Other Related Research; Authors: Peters, H.E.; Kartaschoff, P. Publication Date: Fri Jan 15 00:00:00 EST 1965 Research Org.: Originating Research

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  • Introduction to atomic frequency standards

    The survey reviews the historical background and development of atomic frequency standards leading to the most recent achievements. A qualitative discussion of underlying principles is also

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  • An experimental study of intermodulation effects

    An experimental study of intermodulation effects in an atomic fountain frequency standard. J. Guéna 1, G. Dudle, P. Thomann 2 METAS, Lindenweg 50, 3003 Bern-Wabern, Switzerland 1 1 On leave from Laboratoire Kastler Brossel, CNRS UMR 8552, 24 Rue Lhomond, F-75231 Paris Cedex 05, France. 2 2 LTF-IMT, Université de Neuchâtel, rue A.-L. Breguet 1, CH-2000 Neuchâtel, Switzerland. Februar 19

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  • Recent Research Activities on Atomic Time &

    Download Citation | Recent Research Activities on Atomic Time & Frequency Standards | Recent research activities on atomic time and frequency standards are introduced. Especially two topics are

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  • Making Waves: Vertical Mapping and Atomic

    The frequency standard that you're going to hear Derek mention in a moment is the natural resonance frequency of the cesium atom, which is how the measurement of one second is defined. DEREK VAN WESTRUM: "At NIST, we're doing a geopotential survey of their atomic clock labs. They have a frequency standard that's based on cesium and it's accurate to one part in 10 to the minus 15

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  • LOCAL OSCILLATOR INDUCED DEGRADATION OF MEDIUM-TERM

    Passive atomic and ionic frequency standards presently provide greater long-term stability than any other frequency sources. They include the new Trapped Mercury Ion more conventional ~ubidium[~] and Cesium sta~~dards[~~~], and the optical standards[lO] which are proposed for even higher stability. These standards have an inherent advantage for long term stability which derives frorn the

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  • The_Quantum_Physics_of_Atomic_Frequency_Standards_

    Atomic frequency standards can be divided into two main classes. (1) Active devices. In this class we have devices such as the hydrogen and the rubidium masers. These devices emit radiation in the microwave range. The hydrogen maser is one of the most stable oscillators over medium and long periods of time while the rubidium maser is characterised by a very good stability over short periods of

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  • Caesium atomic clocks: function, performance and applications

    Caesium atomic clocks: function, performance and applications To cite this article: Andreas Bauch 2003 Meas. Sci. Technol. 14 1159 View the article online for updates and enhancements. Related content Frequency standards and frequency measurement A Bauch and H R Telle-Trapped-ion and trapped-atom microwave frequency standards Peter T H Fisk-

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  • Work with us – Atomic Frequency Standards

    Laser cooling is a standard technique for preparing atomic samples to be used in clocks, inertial sensors (accelerometers, gravimeters, gyroscopes) and quantum simulators. In strontium, this technique can be investigated down to its quantum limit, i.e. when the atomic temperature approaches the recoil energy of the single photon. We propose to study the cooling of Sr atoms on the

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  • Andrew D. Ludlow, Martin M. Boyd - arXiv

    to the study of many-body quantum systems (Martin et al., 2013; Rey et al., 2014). A. Ingredients for an atomic frequency standard and clock All precise clocks work on the same basic principle. First, we require a system that exhibits a regular periodic event; that is, its cycles occur at a constant frequency, thereby providing a stable frequency reference and a basic unit of time. Counting

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  • Atomic Frequency Standards in Offshore

    Abstract Atomic frequency standards now attained a perfection that they already have become a valuable tool in oceanographic work. Their most significant application is in navigation and positioning. They are now used to improve synchronisation in L

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  • Design of a Miniaturized High-Performance

    Abstract. A miniaturized high-performance rubidium atomic frequency standard (RAFS) is introduced in this paper. Physics package is composed of a newly developed slotted tube microwave cavity and a 87 Rb spectral lamp with Xe as starter gas. Optical and hyperfine filter techniques are used in the design of the physics package.

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  • Primary Atomic Frequency Standards at NIST

    Primary atomic frequency standards are passive devices; the resonance is located by probing the system with an external oscillator that can be tuned across the resonance. Generally, the narrower the linewidth, the less uncertain is the location of the center of the resonance, but noise can also affect the accurate location of the center of the line. Ignoring noise for the moment, the linewidth

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