Hydrocarbon Sensing Methods and Apparatus
    51.
    发明申请
    Hydrocarbon Sensing Methods and Apparatus 有权
    烃探测方法与装置

    公开(公告)号:US20160116403A1

    公开(公告)日:2016-04-28

    申请号:US14889839

    申请日:2014-05-08

    Abstract: A chip-scale, reusable sensor can detect aromatic hydrocarbons, such as benzene, toluene, ethylbenzene, and xylenes (BTEX), rapidly in water without sample preparation. The device is capable of real-time, continuous monitoring for BTEX solutes, which diffuse into a film, such as a polymer, on the sensors surface. In operation, BTEX analytes concentrate in the film, causing an increase in refractive index, which modulates evanescent coupling into the chips integrated photodetector array. Integration of the photodetector array simplifies system instrumentation and permits incorporation of an on-chip photocurrent reference region in the immediate vicinity of the sensing region, reducing drift due to temperature fluctuations. In some examples, the chip responds linearly for BTEX concentrations between 1 ppm and 30 ppm, with a limit of detection of 359 ppb, 249 ppb, and 103 ppb for benzene, toluene, and xylene in water, respectively.

    Abstract translation: 芯片级的可重复使用的传感器可以在没有样品制备的情况下快速检测芳烃,如苯,甲苯,乙苯和二甲苯(BTEX)。 该装置能够实时,连续地监测传感器表面上扩散到薄膜(如聚合物)中的BTEX溶质。 在操作中,BTEX分析物集中在膜中,引起折射率的增加,其调节到芯片集成光电检测器阵列中的渐逝耦合。 光电检测器阵列的集成简化了系统仪器,并且允许在感测区域附近并入片上光电流参考区域,从而减少由于温度波动引起的漂移。 在一些实例中,芯片对于1ppm和30ppm之间的BTEX浓度线性反应,分别对苯,苯和二甲苯的检测限为359ppb,249ppb,103ppb。

    OPTICAL SENSOR APPARATUS AND METHOD OF PRODUCING OPTICAL ELEMENT USED IN OPTICAL SENSOR APPARATUS
    53.
    发明申请
    OPTICAL SENSOR APPARATUS AND METHOD OF PRODUCING OPTICAL ELEMENT USED IN OPTICAL SENSOR APPARATUS 有权
    光学传感器装置和光学传感器装置中使用的光学元件的制造方法

    公开(公告)号:US20150316466A1

    公开(公告)日:2015-11-05

    申请号:US14444000

    申请日:2013-11-27

    Abstract: An optical sensor apparatus includes a light receiving element configured to produce an output according to a light receiving state, and an optical element including a reflecting layer including a metal film, and being arranged such that at least some of incident light on the light receiving element is light that is reflected by the reflecting layer. The optical element further includes a corrosion resistant layer for suppressing corrosion of the reflecting layer, and the reflecting layer includes a surface covered by the corrosion resistant layer formed by vapor plating.

    Abstract translation: 一种光学传感器装置,包括:受光元件,其被配置为根据受光状态产生输出;以及光学元件,其包括具有金属膜的反射层,并且被布置成使得光接收元件上的至少一些入射光 是由反射层反射的光。 光学元件还包括用于抑制反射层腐蚀的耐腐蚀层,反射层包括被蒸镀形成的耐腐蚀层覆盖的表面。

    Sensor using ultra thin waveguides and optical fibers
    54.
    发明授权
    Sensor using ultra thin waveguides and optical fibers 失效
    传感器采用超薄波导和光纤

    公开(公告)号:US07336859B2

    公开(公告)日:2008-02-26

    申请号:US11321158

    申请日:2005-12-28

    Inventor: Glen A. Sanders

    Abstract: Methods and apparatus are provided for detecting one or more contaminant particles in an environment with an optical sensor. The sensor includes at least one optical waveguide in a resonant arrangement and a light source positioned in an environment in which the presence of a contaminant particle is sought to be determined. The at least one optical waveguide is of a diameter that an evanescent tail of the lightwave extending there through extends into the environment and is reactive to at least one contaminant particle in the surrounding environment. A detector is positioned to receive light indicative of the sharpness of the optical resonance lineshape of the optical resonator at a pre-selected optical wavelength. The detected information determines the specific contaminant particle in the environment and the concentration of the contaminant particle in the environment.

    Abstract translation: 提供了用于利用光学传感器检测环境中的一种或多种污染物颗粒的方法和装置。 传感器包括至少一个谐振装置中的光波导和位于其中寻求确定污染物颗粒的存在的环境中的光源。 至少一个光波导具有直径延伸到其中的光波的渐逝尾部延伸到环境中并且对周围环境中的至少一种污染物质具有反应性的直径。 检测器被定位成以预选的光波长接收指示光学谐振器的光学谐振线形状的清晰度的光。 检测到的信息确定环境中的特定污染物颗粒和环境中污染物颗粒的浓度。

    Monolithic system and method for enhanced Raman spectroscopy
    55.
    发明授权
    Monolithic system and method for enhanced Raman spectroscopy 有权
    用于增强拉曼光谱的单片系统和方法

    公开(公告)号:US07151599B2

    公开(公告)日:2006-12-19

    申请号:US11044421

    申请日:2005-01-27

    CPC classification number: G01N21/658 G01N2201/0873

    Abstract: Devices, systems, and methods for enhancing Raman spectroscopy and hyper-Raman are disclosed. A molecular analysis device for performing Raman spectroscopy comprises a substrate and a laser source disposed on the substrate. The laser source may be configured for emanating a laser radiation, which may irradiate an analyte disposed on a Raman enhancement structure. The Raman enhancement structure may be disposed in a waveguide. The molecular analysis device also includes a wavelength demultiplexer and radiation sensors disposed on the substrate and configured for receiving a Raman scattered radiation, which may be generated by the irradiation of the analyte and Raman enhancement structure.

    Abstract translation: 公开了用于增强拉曼光谱和超拉曼的装置,系统和方法。 用于执行拉曼光谱的分子分析装置包括设置在基板上的基板和激光源。 激光源可以被配置为发射激光辐射,其可照射设置在拉曼增强结构上的分析物。 拉曼增强结构可以设置在波导中。 该分子分析装置还包括布置在基板上的波长解复用器和辐射传感器,并且被配置为用于接收可以通过分析物的照射和拉曼增强结构产生的拉曼散射辐射。

    Sensors employing interference of electromagnetic waves passing through
waveguides having functionalized surfaces
    56.
    发明授权
    Sensors employing interference of electromagnetic waves passing through waveguides having functionalized surfaces 失效
    采用通过具有功能化表面的波导的电磁波干扰的传感器

    公开(公告)号:US5465151A

    公开(公告)日:1995-11-07

    申请号:US14425

    申请日:1993-02-05

    Abstract: Chemical and biosensors are disclosed. An optical waveguide is used to conduct electromagnetic radiation by total internal reflection in parallel through a reference waveguide portion and at least one analyte waveguide portion. The electromagnetic radiation is then converged into an exit beam. The external surface of at least the analyte portion is covalently modified, or functionalized, relative to the reference portion. Resulting interaction of the functionalized surface with molecules comprising an analyte causes a phase change in the electromagnetic radiation passing through the analyte portion relative to the reference portion sufficient to generate a corresponding and measurable interference pattern in the exit beam. A waveguide surface is functionalized by exposure to a reagent, having molecules each comprising a nitrenogenic group and a functionalizing group, in the presence of energized charged particles such as electrons and ions, photons, or heat, which transform the nitrenogenic reagent to a nitrene intermediate. The resulting reaction causes the functionalizing groups to covalently bond to the surface. The functionalizing groups can then participate in downstream chemistry whereby any of a large variety of functional groups, including biological molecules, can be covalently bonded to the surface. Thus, the waveguide surface can be made selectively responsive to a wide variety of analytes, including cells and other biological structures.

    Abstract translation: 公开了化学和生物传感器。 光波导用于通过参考波导部分和至少一个分析物波导部分并行地通过全内反射来传导电磁辐射。 电磁辐射然后会聚到出射光束中。 至少分析物部分的外表面相对于参考部分共价修饰或官能化。 功能化表面与包含分析物的分子的相互作用导致相对于参考部分通过分析物部分的电磁辐射的相变足以在出射光束中产生相应和可测量的干涉图案。 波导表面通过暴露于具有各自包含硝基衍生基团和官能化基团的分子的试剂而被功能化,所述分子在有电的带电粒子例如电子和离子,光子或热的情况下,其将硝化反应试剂转变为硝酸中间体 。 所得到的反应使官能团共价键合到表面。 官能团然后可以参与下游化学,因此包括生物分子在内的各种各样的官能团中的任何一个可以共价键合到表面上。 因此,波导表面可以选择性地响应于各种各样的分析物,包括细胞和其他生物结构。

    MICROFLUIDIC DETECTION DEVICE
    57.
    发明公开

    公开(公告)号:US20240044776A1

    公开(公告)日:2024-02-08

    申请号:US18072655

    申请日:2022-11-30

    Abstract: Disclosed is a microfluidic detection device including a circuit substrate and a transparent substrate. The circuit substrate is provided with at least one first light-emitting device used to emit a detection beam, a photodetector used to receive the detection beam and send out a sensing signal, and a control circuit electrically connected to the first light-emitting device and the photodetector. The transparent substrate overlaps the circuit substrate and is provided with a microfluidic channel and a light guide structure. The light guide structure has a light incident surface disposed corresponding to the first light-emitting device and a light exiting surface disposed corresponding to the photodetector. The light guide structure extends from each of the light incident surface and the light exiting surface to the microfluidic channel and is adapted to transmit the detection beam into and out of the microfluidic channel.

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