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公开(公告)号：US09077354B2
公开(公告)日：2015-07-07
申请号：US13759444
申请日：2013-02-05
Applicant: Honeywell International Inc.
Inventor： Jennifer S. Strabley , Kenneth Salit , Karl D. Nelson , Ben Luey , Mike Anderson
Abstract: A method for reducing or eliminating clock bias in an atomic clock is provided. The method comprises cooling a population of atoms collected in the atomic clock using a laser locked at a predetermined frequency, turning off the laser, performing atomic clock spectroscopy, turning on the laser after the atomic clock spectroscopy, and relocking the frequency of the laser to an external reference cell. The population of atoms that are in each of two ground hyperfine levels is then probed using laser light that is on or near-resonant with a selected atomic transition.
Abstract translation: 提供了用于减少或消除原子钟中的时钟偏差的方法。 该方法包括使用以预定频率锁定的激光来冷却原子钟中收集的原子群，关闭激光，执行原子钟分析，在原子时钟谱之后打开激光，并将激光频率重新锁定 外部参考单元。 然后使用与所选择的原子跃迁接近或接近谐振的激光来探测在两个地面超精细水平的每一个中的原子群体。
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公开(公告)号：US20130265112A1
公开(公告)日：2013-10-10
申请号：US13759444
申请日：2013-02-05
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Jennifer S. Strabley , Kenneth Salit , Karl D. Nelson , Ben Luey , Mike Anderson
IPC: H03L7/26
Abstract: A method for reducing or eliminating clock bias in an atomic clock is provided. The method comprises cooling a population of atoms collected in the atomic clock using a laser locked at a predetermined frequency, turning off the laser, performing atomic clock spectroscopy, turning on the laser after the atomic clock spectroscopy, and relocking the frequency of the laser to an external reference cell. The population of atoms that are in each of two ground hyperfine levels is then probed using laser light that is on or near-resonant with a selected atomic transition.
Abstract translation: 提供了用于减少或消除原子钟中的时钟偏差的方法。 该方法包括使用以预定频率锁定的激光来冷却原子钟中收集的原子群，关闭激光，执行原子钟分析，在原子时钟谱之后打开激光，并将激光频率重新锁定 外部参考单元。 然后使用与所选择的原子跃迁接近或接近谐振的激光来探测在两个地面超精细水平的每一个中的原子群体。
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3.发明授权Measuring the populations in each hyperfine ground state of alkali atoms in a vapor cell while limiting the contribution of the background vapor 有权测量蒸汽池中碱金属原子的每个超精细基态的数量，同时限制背景蒸气的贡献公开(公告)号：US08907276B2
公开(公告)日：2014-12-09
申请号：US13759400
申请日：2013-02-05
Applicant: Honeywell International, Inc.
Inventor： Karl D. Nelson , Kenneth Salit , Ben Luey , Mike Anderson
Abstract: A method for measuring the population of atoms in a vapor cell comprises collecting a sample of atoms, applying radio frequency (RF) spectroscopy to the sample such that a first portion of the atoms are in an upper ground state and a second portion of the atoms are in a lower ground state, and applying light to the sample to produce a first fluorescence such that all atoms are left in the lower ground state. The method further comprises measuring a population of the atoms in the upper ground state based on the first fluorescence, applying an RF pulse to the sample to transfer the atoms in the lower ground state to the upper ground state, and applying light to the sample after the RF pulse is applied to produce a second fluorescence. A population of all the atoms in the sample is then measured based on the second fluorescence.
Abstract translation: 用于测量蒸汽池中的原子群体的方法包括收集原子样品，向样品施加射频（RF）光谱，使得原子的第一部分处于上基态，并且原子的第二部分 处于较低的基态，并向样品施加光以产生第一荧光，使得所有原子都处于较低的基态。 该方法还包括基于第一荧光测量上基态中原子的群体，向样品施加RF脉冲以将处于较低基态的原子转移至较高基态，并且将光施加到样品之后 施加RF脉冲以产生第二荧光。 然后基于第二荧光测量样品中所有原子的群体。
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4.发明申请MEASURING THE POPULATIONS IN EACH HYPERFINE GROUND STATE OF ALKALI ATOMS IN A VAPOR CELL WHILE LIMITING THE CONTRIBUTION OF THE BACKGROUND VAPOR 有权测量蒸发器中ALKALI ATOMS的每个高温地区的人口，限制背景蒸气的贡献公开(公告)号：US20130270434A1
公开(公告)日：2013-10-17
申请号：US13759400
申请日：2013-02-05
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Karl D. Nelson , Kenneth Salit , Ben Luey , Mike Anderson
IPC: H01J49/46
Abstract: A method for measuring the population of atoms in a vapor cell comprises collecting a sample of atoms, applying radio frequency (RF) spectroscopy to the sample such that a first portion of the atoms are in an upper ground state and a second portion of the atoms are in a lower ground state, and applying light to the sample to produce a first fluorescence such that all atoms are left in the lower ground state. The method further comprises measuring a population of the atoms in the upper ground state based on the first fluorescence, applying an RF pulse to the sample to transfer the atoms in the lower ground state to the upper ground state, and applying light to the sample after the RF pulse is applied to produce a second fluorescence. A population of all the atoms in the sample is then measured based on the second fluorescence.
Abstract translation: 用于测量蒸汽池中的原子群体的方法包括收集原子样品，向样品施加射频（RF）光谱，使得原子的第一部分处于上基态，并且原子的第二部分 处于较低的基态，并向样品施加光以产生第一荧光，使得所有原子都处于较低的基态。 该方法还包括基于第一荧光测量上基态中原子的群体，向样品施加RF脉冲以将处于较低基态的原子转移至较高基态，并且将光施加到样品之后 施加RF脉冲以产生第二荧光。 然后基于第二荧光测量样品中所有原子的群体。
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