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    • 3. 发明申请
    • COLD ATOM MICRO PRIMARY STANDARD
    • 冷门微型主要标准
    • US20100033256A1
    • 2010-02-11
    • US12484899
    • 2009-06-15
    • Jennifer S. StrableyDaniel W. YoungnerLisa M. LustThomas OhnsteinBernard Fritz
    • Jennifer S. StrableyDaniel W. YoungnerLisa M. LustThomas OhnsteinBernard Fritz
    • H03L7/26H03B17/00
    • G04F5/14
    • An atomic clock having a physics package that includes a vacuum chamber cavity that holds atoms of Rb-87 under high vacuum conditions, an optical bench having a single laser light source, a local oscillator, a plurality of magnetic field coils, an antenna, at least one photo-detector and integrated control electronics. The single laser light source has a fold-retro-reflected design to create three retro-reflected optical beams that cross at 90° angles relative to one another in the vacuum chamber cavity. This design allows the single laser light source to make the required six trapping beams needed to trap and cool the atoms of Rb-87. The foregoing design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping.
    • 具有物理封装的原子钟包括在高真空条件下保存Rb-87原子的真空室腔,具有单个激光光源,本地振荡器,多个磁场线圈,天线的光学台 至少一个光电检测器和集成控制电子元件。 单个激光光源具有折射反射设计,以在真空室腔中产生相对于彼此以90度角交叉的三个反射光束。 该设计允许单个激光光源产生所需的六个俘获光束,以捕获和冷却Rb-87的原子。 上述设计使得可能的原子钟具有减小的尺寸和功率消耗,并且能够在没有主动泵送的情况下保持超高真空。
    • 4. 发明授权
    • Cold atom micro primary standard
    • 冷原子微小标准
    • US07944317B2
    • 2011-05-17
    • US12484899
    • 2009-06-15
    • Jennifer S. StrableyDaniel W. YoungnerLisa M. LustThomas OhnsteinBernard Fritz
    • Jennifer S. StrableyDaniel W. YoungnerLisa M. LustThomas OhnsteinBernard Fritz
    • H03L7/26
    • G04F5/14
    • An atomic clock having a physics package that includes a vacuum chamber cavity that holds atoms of Rb-87 under high vacuum conditions, an optical bench having a single laser light source, a local oscillator, a plurality of magnetic field coils, an antenna, at least one photo-detector and integrated control electronics. The single laser light source has a fold-retro-reflected design to create three retro-reflected optical beams that cross at 90° angles relative to one another in the vacuum chamber cavity. This design allows the single laser light source to make the required six trapping beams needed to trap and cool the atoms of Rb-87. The foregoing design makes possible atomic clocks having reduced size and power consumption and capable of maintaining an ultra-high vacuum without active pumping.
    • 具有物理封装的原子钟包括在高真空条件下保存Rb-87原子的真空室腔,具有单个激光光源,本地振荡器,多个磁场线圈,天线的光学台 至少一个光电检测器和集成控制电子元件。 单个激光光源具有折射反射设计,以在真空室腔中产生相对于彼此以90度角交叉的三个反射光束。 该设计允许单个激光光源产生所需的六个俘获光束,以捕获和冷却Rb-87的原子。 上述设计使得可能的原子钟具有减小的尺寸和功率消耗,并且能够在没有主动泵送的情况下保持超高真空。
    • 10. 发明授权
    • High pass optical filter
    • 高通滤光片
    • US5483387A
    • 1996-01-09
    • US279762
    • 1994-07-22
    • Paul E. BauhahnThomas OhnsteinJames D. Zook
    • Paul E. BauhahnThomas OhnsteinJames D. Zook
    • G02B5/20G02B5/28G02B5/18G02B5/22
    • G02B5/204
    • A microstructure device having a array of deep lamellar structures resembling parallel plates has sharp high pass cut-off behavior associated with incident TE polarized radiation. When two such microstructures are disposed in an orthogonal orientation, they act like a 2-D array of rectangular waveguides with the cut-off behavior determined by the separation of the respective parallel plates. Another embodiment of the present invention employs a linear drive to articulate the array of coupled parallel plates to tune the filter to the operative incident radiation relatively independent of the angle of incidence. The microstructure finds application placed proximate the focal plane of an array of radiation sensitive material so that very high resolution multispectral images may be generated. When the array is articulated by a linear actuator, a preselected cut-off frequency may be tuned so that multispectral imaging occurs independent of the imaging technology employed, with applications for remote sensing of chemical agents, satellite surveys of agricultural resources, meteorological conditions, or environmental quality. When disposed in a gas absorption cell, opposing an IR source and proximate an IR detector the tunable filter can be used for gas analysis.
    • 具有类似于平行板的深层状结构的阵列的微结构器件具有与入射TE偏振辐射相关的尖锐的高通过截止行为。 当两个这样的微结构以正交方向设置时,它们的作用类似于矩形波导的2-D阵列,具有由相应的平行板的分离确定的截止行为。 本发明的另一个实施例采用线性驱动器来连接耦合的平行板的阵列,以将滤波器调谐到相对独立于入射角的操作入射辐射。 微结构发现应用放置在辐射敏感材料阵列的焦平面附近,使得可以产生非常高分辨率的多光谱图像。 当阵列由线性致动器铰接时,可以调整预选的截止频率,使得多光谱成像独立于所使用的成像技术,应用于化学试剂的遥感,农业资源的卫星调查,气象条件或 环境质量。 当设置在气体吸收单元中时,与IR源相对并且靠近IR检测器,可调谐滤波器可用于气体分析。