Portable polarimetric fiber stress sensor system for visco-elastic and biomimetic material analysis

    公开(公告)号:US09791333B2

    公开(公告)日:2017-10-17

    申请号:US15178795

    申请日:2016-06-10

    IPC分类号: G01L1/24 G02B6/024

    摘要: An all-optical fiber sensor apparatus includes a light source and an in-line fiber polarizer that polarizes light received from the light source. The in-line fiber polarizer outputs light in a first polarization state which is directed to a polarization-maintaining fiber. After receiving the light in a first polarization state, the polarization-maintaining fiber transmits the light such that the light exits as light in a second polarization state. During measurements, the polarization-maintaining fiber contacts a test sample. A compression device compresses the test sample. The compression device applies a time varying force to the test sample in which the force is sequentially increased. A polarimeter receives the light in a second polarization state and outputs polarization state data for the light in a second polarization state. Finally, a data processor is in communication with the polarimeter to receive and stores the polarization state data.

    HIGHLY EFFICENT ON-CHIP DIRECT ELECTRONIC-PLASMONIC TRANSDUCERS

    公开(公告)号:US20170254952A1

    公开(公告)日:2017-09-07

    申请号:US15445408

    申请日:2017-02-28

    IPC分类号: G02B6/122 G01J1/42

    摘要: In one embodiment, an on-chip electronic-plasmonic transducer is provided that is capable of both direct plasmon generation and detection at high efficiencies. The electronic-plasmonic transducer includes a metal-insulator-metal junction formed from a first wire constructed of a first metal, a tunneling barrier material in contact with the first wire, and a second wire made from a second metal in contact with the tunneling barrier material. A plasmonic waveguide is formed as a contiguous part of the second wire, such that the waveguide is directly coupled to the MIM junction. The electronic-plasmonic transducer can both directly generate and detect plasmons, such that it may be configured on-chip as either a plasmon source or a plasmon detector. The electronic-plasmonic transducer may be used to form an on-chip plasmon-based frequency multiplier or plasmon amplifier, among other usages.

    OPTICAL FREQUENCY DOMAIN REFLECTOMETRY, OPTICAL FREQUENCY DOMAIN REFLECTOMETER, AND DEVICE FOR MEASURING POSITION OR SHAPE USING THE SAME
    25.
    发明申请
    OPTICAL FREQUENCY DOMAIN REFLECTOMETRY, OPTICAL FREQUENCY DOMAIN REFLECTOMETER, AND DEVICE FOR MEASURING POSITION OR SHAPE USING THE SAME 有权
    光学频域反射测量法,光学频域反射仪,以及使用该光学测量仪器测量位置或形状的装置

    公开(公告)号:US20170052091A1

    公开(公告)日:2017-02-23

    申请号:US14829778

    申请日:2015-08-19

    发明人: Takashi Mori

    摘要: To eliminate a need for polarization adjustment, to simplify a configuration, and to make a configuration at low cost. Wavelength swept light is provided to a measurement-target optical fiber having an FBG with a chirped grating interval. A polarization multiplexing unit generates polarization multiplexed reference light by multiplexing first reference light and second reference light, which are swept in a wavelength in the same manner as wavelength swept light and have polarizations orthogonal to each other. Polarization multiplexed reference light is input to combine means along with reflected light from measurement-target optical fiber and is made to interfere with reflected light. A signal processing unit performs Fourier transform processing on the digital signal by dividing a time domain into a plurality of periods, and synthesizes the Fourier transform results on a distance axis to obtain a measurement result of orthogonal polarization components of reflected light.

    摘要翻译: 为了消除极化调整的需要,简化配置,并以低成本进行配置。 波长扫描光被提供给具有啁啾光栅间隔的FBG的测量目标光纤。 偏振复用单元通过以与波长扫描光相同的方式以波长扫描并且具有彼此正交的偏振的第一参考光和第二参考光多路复用生成偏振复用参考光。 偏振多路复用参考光被输入到组合装置以及来自测量目标光纤的反射光,并使其与反射光干涉。 信号处理单元通过将时域划分为多个周期对数字信号进行傅立叶变换处理,并且在距离轴上合成傅里叶变换结果,以获得反射光的正交偏振分量的测量结果。

    SYSTEM AND METHODS FOR HIGHLY INTEGRATED OPTICAL READOUT MEMS SENSORS
    28.
    发明申请
    SYSTEM AND METHODS FOR HIGHLY INTEGRATED OPTICAL READOUT MEMS SENSORS 有权
    用于高度集成的光读出MEMS传感器的系统和方法

    公开(公告)号:US20160320180A1

    公开(公告)日:2016-11-03

    申请号:US14721914

    申请日:2015-05-26

    摘要: System and methods for highly integrated optical readout MEMS sensors are provided. In one embodiment, a method for an integrated waveguide optical-pickoff sensor comprises: launching a laser beam generated by a laser light source into an integrated waveguide optical-pickoff monolithically fabricated within a first substrate, the integrated waveguide optical-pickoff including an optical input port, a coupling port, and an optical output port; and detecting an amount of coupling of the laser beam from the coupling port to a sensor component separated from the coupling port by a gap by measuring an attenuation of the laser beam at the optical output port.

    摘要翻译: 提供了高集成度光读出MEMS传感器的系统和方法。 在一个实施例中,一种用于集成波导光学传感器传感器的方法包括:将由激光光源产生的激光束发射到在第一衬底内单片制造的集成波导光学传感器中,所述集成波导光学传感器包括光输入 端口,耦合端口和光输出端口; 以及通过测量光输出端口处的激光束的衰减来检测激光束从耦合端口到与耦合端口分离的传感器部件之间的间隙的耦合量。

    SENSOR DEVICES COMPRISING A METAL-ORGANIC FRAMEWORK MATERIAL AND METHODS OF MAKING AND USING THE SAME
    30.
    发明申请
    SENSOR DEVICES COMPRISING A METAL-ORGANIC FRAMEWORK MATERIAL AND METHODS OF MAKING AND USING THE SAME 有权
    包含金属有机框架材料的传感器件及其制造和使用方法

    公开(公告)号:US20160231233A1

    公开(公告)日:2016-08-11

    申请号:US15019811

    申请日:2016-02-09

    摘要: Disclosed herein are embodiments of sensor devices comprising a sensing component able to determine the presence of, detect, and/or quantify detectable species in a variety of environments and applications. The sensing components disclosed herein can comprise MOF materials, plasmonic nanomaterials, or combinations thereof. In an exemplary embodiment, light guides can be coupled with the sensing components described herein to provide sensor devices capable of increased NIR detection sensitivity in determining the presence of detectable species, such as gases and volatile organic compounds. In another exemplary embodiment, optical properties of the plasmonic nanomaterials combined with MOF materials can be monitored directly to detect analyte species through their impact on external conditions surrounding the particle or as a result of charge transfer to and from the plasmonic material as a result of interactions with the plasmonic material and/or the MOF material.

    摘要翻译: 本文公开的传感器装置的实施例包括能够确定各种环境和应用中可检测物种的存在,检测和/或定量的感测部件。 本文公开的感测组件可以包括MOF材料,等离子体激元纳米材料或其组合。 在示例性实施例中,光导可以与本文所述的感测组件耦合,以提供能够在确定可检测物质(例如气体和挥发性有机化合物)的存在时能够增加近红外检测灵敏度的传感器装置。 在另一个示例性实施例中,可以直接监测等离子体激元纳米材料与MOF材料结合的光学性质,以通过它们对颗粒周围的外部条件的影响或作为由于相互作用的结果与等离子体激元材料的电荷转移的结果来检测分析物物质 与等离子体激元材料和/或MOF材料。