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    • 2. 发明授权
    • Correlated ghost imager
    • 相关的鬼影片
    • US07767968B2
    • 2010-08-03
    • US11901508
    • 2007-09-18
    • Daniel W. YoungnerLisa M. LustRobert W. Boyd
    • Daniel W. YoungnerLisa M. LustRobert W. Boyd
    • G01J5/02
    • G01V8/005G01S13/867G01S13/887
    • A method and system for detecting concealed weapons and explosives by imaging THz scenes using conventional optics and detectors is provided. Photon fields with two different wavelengths can be sent through a chopper and towards a wavelength-selective mirror. A light beam with a wavelength in the visible or IR range is sent toward a visible photon array detector. Similarly, light beams with wavelengths in the THz range can be sent towards a target, which are reflected and/or absorbed by objects in the target. The reflected or transmitted light continues on through an optional filter to remove background light, then into a non-imaging detector. The visible photon array detector can be coupled with the non-imaging detector, which will register an image of the scene that is illuminated by the THz photons.
    • 提供了一种通过使用常规光学和检测器对太赫兹场景进行成像检测隐藏的武器和爆炸物的方法和系统。 具有两种不同波长的光子场可以通过斩波器和波长选择性反射镜发射。 将具有可见光或IR范围波长的光束发送到可见光子阵列检测器。 类似地,具有THz范围波长的光束可以被发送到目标,由靶中的物体反射和/或吸收。 反射或透射的光继续通过可选的滤光器以去除背景光,然后进入非成像检测器。 可见光子阵列检测器可以与非成像检测器耦合,该非成像检测器将对由THz光子照射的场景的图像进行寄存。
    • 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。
    • 5. 发明授权
    • Optical pressure sensor
    • 光学压力传感器
    • US06894787B2
    • 2005-05-17
    • US10036629
    • 2001-12-21
    • Daniel W. YoungnerSon Thai Lu
    • Daniel W. YoungnerSon Thai Lu
    • G01L9/00G01B9/02
    • G01L9/002
    • A pressure sensor is formed on a substrate, the surface of the substrate having a p-n junction and a shell with a beam inside the shell over the p-n junction. The beam and the shell and the p-n junction surface form optical Fabry-Pérot cavities. An optical fiber is positioned in a hole formed in the underside of the substrate below the p-n junction. Light from the fiber charges the p-n junction and drives it into vibration mode. Pressure changes change the tension in the diaphram to vary the frequency with changes in pressure, so that pressure can be detected.
    • 在衬底上形成压力传感器,衬底的表面具有p-n结,壳体上具有在壳体内的光束在p-n结上。 光束和外壳以及p-n结表面形成光学法布里 - 珀罗腔。 光纤被定位在形成在p-n结下面的衬底下侧的孔中。 来自光纤的光对p-n结进行充电并将其驱动到振动模式。 压力变化改变了膜中的张力,随着压力的变化而改变频率,从而可以检测压力。
    • 6. 发明授权
    • MEMS microthruster array
    • MEMS微推移器阵列
    • US06378292B1
    • 2002-04-30
    • US09709107
    • 2000-11-10
    • Daniel W. Youngner
    • Daniel W. Youngner
    • F02K942
    • B64G1/403B64G1/26C06B45/00F02K9/763F02K9/94F42B10/661
    • A microelectrical mechanical system (MEMS) microthruster array is disclosed. The MEMS microthruster array of the present invention can be used for maintaining inter satellite distance in small satellites. One microthruster array includes numerous microthruster propulsion cells, each having a vacuum enclosed explosive igniter disposed on one side by a breakable diaphragm and having a propellant-filled chamber on the opposite side of the diaphragm. Upon explosion of the explosive igniter, the first diaphragm breaks, which, together with the explosion of the explosive igniter, causes the propellant to expand rapidly, thereby providing exhaust gases which are ejected from an exterior face of the microthruster propulsion array, thereby providing a small unit of thrust.
    • 公开了一种微电机械系统(MEMS)微推移器阵列。 本发明的MEMS微推移器阵列可用于维持小卫星中的卫星间距离。 一个微型推进器阵列包括许多微推进器推进室,每个微型推进器单元具有通过可破坏隔膜设置在一侧的真空封闭爆炸点火器,并且在隔膜的相对侧上具有推进剂填充室。 当爆炸性点火器爆炸时,第一隔膜破裂,随着爆炸点火器的爆炸,爆炸点火器的爆炸使得推进剂迅速膨胀,从而提供从微推进器推进阵列外表面喷出的废气, 小推力单位。
    • 7. 发明授权
    • High temperature resonant integrated microstructure sensor
    • 高温谐振集成微结构传感器
    • US6031944A
    • 2000-02-29
    • US999165
    • 1997-12-30
    • Daniel W. Youngner
    • Daniel W. Youngner
    • B81B3/00G01L1/10G01L1/18G01L9/00G01P15/097G01P15/10G02B6/00
    • G01P15/097G01L1/103G01L1/186G01L9/0011G01L9/002
    • A very high temperature microbeam sensor of a resonant integrated microstructure having an electrostatic beam driver and an optical fiber pick-up for sensed light from the beam. The high temperature sensor has no components that are vulnerable to temperatures up to 600 degrees C. Associated components for detection, processing and driving are remote from the sensor environment. By using different materials in the beam assembly, such as tungsten for the beam, and sapphire for the substrate and the shell, the sensor can withstand temperatures up to 1000 degrees C. Also, optical fiber may be used for long distance connections between processing electronics and the driver in the sensing device, by locating a photo detector just outside the very or ultra high temperature sensing environment, and then using optical fiber for sending long distance signals from the processor to the driver photo detector, for eliminating electrical signal-to-noise problems.
    • 具有静电束驱动器和用于来自光束的感测光的光纤拾取器的谐振集成微结构的非常高温的微束传感器。 高温传感器没有易受温度高达600摄氏度影响的组件。用于检测,处理和驱动的相关组件远离传感器环境。 通过在梁组件中使用不同的材料,例如用于梁的钨,以及用于衬底和壳的蓝宝石,传感器可以承受高达1000摄氏度的温度。此外,光纤可用于处理电子器件之间的长距离连接 以及感测装置中的驱动器,通过将光电检测器定位在非常或超高温感测环境之外,然后使用光纤将长距离信号从处理器发送到驱动器光电检测器,以消除电信号 - 噪音问题。
    • 9. 发明授权
    • Fabrication techniques to enhance pressure uniformity in anodically bonded vapor cells
    • 制造技术,以提高阳极结合蒸气细胞的压力均匀性
    • US09146540B2
    • 2015-09-29
    • US13570363
    • 2012-08-09
    • Daniel W. YoungnerJeff A. RidleySon T. Lu
    • Daniel W. YoungnerJeff A. RidleySon T. Lu
    • H01L31/02G04F5/14
    • G04F5/14Y10T428/24149
    • A method of fabricating vapor cells comprises forming a plurality of vapor cell dies in a first wafer having an interior surface region and a perimeter, and forming a plurality of interconnected vent channels in the first wafer. The vent channels provide at least one pathway for gas from each vapor cell die to travel outside of the perimeter of the first wafer. The method further comprises anodically bonding a second wafer to one side of the first wafer, and anodically bonding a third wafer to an opposing side of the first wafer. The vent channels allow gas toward the interior surface region of the first wafer to be in substantially continuous pressure-equilibrium with gas outside of the perimeter of the first wafer during the anodic bonding of the second and third wafers to the first wafer.
    • 一种制造蒸汽池的方法包括在具有内表面区域和周边的第一晶片中形成多个蒸汽池模具,并在第一晶片中形成多个互连的排气通道。 通气通道为来自每个蒸汽池模具的气体提供至少一个通路,以便在第一晶片的周边外行进。 该方法还包括将第二晶片阳极结合到第一晶片的一侧,并将第三晶片阳极结合到第一晶片的相对侧。 在第二和第三晶片与第一晶片的阳极接合期间,排气通道允许气体朝向第一晶片的内表面区域与第一晶片的周边外的气体基本上连续的压力平衡。