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1.发明授权Method for enhanced evanescent field exposure in an optical fiber resonator for spectroscopic detection and measurement of trace species 有权用于光谱检测和痕量物质测量的光纤谐振器中增强的消逝场曝光的方法公开(公告)号：US07504263B2
公开(公告)日：2009-03-17
申请号：US11389852
申请日：2006-03-27
IPC分类号： G01N
CPC分类号： G01N21/39 , G01J3/42 , G01N21/552 , G01N2021/391 , G01N2021/7789
摘要： A method for detection and measurement of trace species in a gas or liquid sample is provided. The method comprises forming a sensor from an optical fiber by tapering a portion the optical fiber along a length thereof, exposing the tapered portion of the optic fiber to the sample gas or sample liquid, emitting radiation from a coherent source, coupling at least a portion of the radiation emitted from the coherent source into the fiber optic ring, receiving a portion of the radiation traveling in the fiber optic ring, and determining the level of trace species in the gas or liquid sample based on a rate of decay of the radiation within the fiber optic ring.
摘要翻译： 提供了一种用于检测和测量气体或液体样品中痕量物质的方法。 该方法包括通过使光纤的一部分沿其长度逐渐变细来形成传感器，将光纤的锥形部分暴露于样品气体或样品液体，从相干光源发射辐射，将至少一部分 从相干光源发射到光纤环中的辐射，接收在光纤环中行进的辐射的一部分，以及基于辐射内部的辐射衰减速率来确定气体或液体样品中的痕量物质的水平 光纤环。
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2.发明授权Method and apparatus for enhanced evanescent field exposure in an optical fiber resonator for spectroscopic detection and measurement of trace species 有权用于光谱检测和测量痕量物质的光纤谐振器中增强的消逝场曝光的方法和装置公开(公告)号：US07318909B2
公开(公告)日：2008-01-15
申请号：US10157400
申请日：2002-05-29
IPC分类号： G02N30/00
CPC分类号： G01N21/39 , G01J3/42 , G01N21/552 , G01N2021/391 , G01N2021/7789
摘要： An apparatus for detection and measurement of trace species in a gas or liquid sample. A sensor of a ring down cell formed from an optical fiber is exposed to the sample gas or liquid. A coherent source emits radiation into the optical fiber loop, which in turn is received at an output coupler. The fiber optic ring is coupled to a sensor which has a portion thereof, between the input and output, exposed to the sample gas or sample liquid. The sensor has an enhanced evanescent region. A processor is coupled to the receiver and determines the level of trace species in the gas or liquid sample based on the rate of decay of the radiation within the fiber optic ring.
摘要翻译： 用于检测和测量气体或液体样品中微量物质的装置。 由光纤形成的环形电池的传感器暴露于样品气体或液体。 相干光源将辐射发射到光纤回路中，光纤回路又在输出耦合器处接收。 光纤环耦合到传感器，该传感器具有在输入和输出之间暴露于样品气体或样品液体中的一部分。 传感器具有增强的渐逝区域。 处理器耦合到接收器，并且基于光纤环内的辐射的衰减速率来确定气体或液体样品中痕量物质的水平。
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3.发明授权Apparatus for enhanced evanescent field exposure in an optical fiber resonator for spectroscopic detection and measurement of trace species 有权用于光谱检测和痕量物质测量的光纤谐振器中用于增强的消逝场曝光的装置公开(公告)号：US07504068B2
公开(公告)日：2009-03-17
申请号：US11390231
申请日：2006-03-27
IPC分类号： G01N33/00
CPC分类号： G01N21/39 , G01J3/42 , G01N21/552 , G01N2021/391 , G01N2021/7789
摘要： An apparatus for detection and measurement of trace species in a gas or liquid sample. A sensor of a ring down cell formed from an optical fiber is exposed to the sample gas or liquid. A coherent source emits radiation into the optical fiber loop, which in turn is received at an output coupler. The fiber optic ring is coupled to a sensor which has a portion thereof, between the input and output, exposed to the sample gas or sample liquid. The sensor has an enhanced evanescent region. A processor is coupled to the receiver and determines the level of trace species in the gas or liquid sample based on the rate of decay of the radiation within the fiber optic ring.
摘要翻译： 用于检测和测量气体或液体样品中微量物质的装置。 由光纤形成的环形电池的传感器暴露于样品气体或液体。 相干光源将辐射发射到光纤回路中，光纤回路又在输出耦合器处接收。 光纤环耦合到传感器，该传感器具有在输入和输出之间暴露于样品气体或样品液体中的一部分。 传感器具有增强的渐逝区域。 处理器耦合到接收器，并且基于光纤环内的辐射衰减速率来确定气体或液体样品中痕量物质的水平。
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公开(公告)号：US07046362B2
公开(公告)日：2006-05-16
申请号：US10017367
申请日：2001-12-12
IPC分类号： G01N21/00
CPC分类号： G01J3/42 , G01N21/39 , G01N21/552 , G01N2021/391 , G01N2021/7789
摘要： An apparatus for detection and measurement of trace species in a gas or liquid sample. A ring down cell formed from a fiber optic ring is exposed to the sample gas or liquid. A coherent source emits radiation into the fiber optic ring, which in turn is received at an output thereof. The fiber optic ring has a portion thereof, between the input and output, exposed to the sample gas or sample liquid. A processor is coupled to the receiver and determines the level of trace species in the gas or liquid sample based on the rate of decay of the radiation within the fiber optic ring.
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5.发明授权Cavity ring-down detection of surface plasmon resonance in an optical fiber resonator 失效光纤谐振器中表面等离子体共振的腔体振荡检测公开(公告)号：US07352468B2
公开(公告)日：2008-04-01
申请号：US11021572
申请日：2004-12-23
申请人： Peter B. Tarsa
发明人： Peter B. Tarsa
IPC分类号： G01N21/55
CPC分类号： G01N21/39 , G01N21/552 , G01N21/553 , G01N21/554 , G01N21/7746
摘要： An apparatus and method for use with a coherent optical source to detect environmental changes. The apparatus comprises: an optical cavity, including an input coupling port, and an optical fiber section; a detector optically coupled to the optical cavity to monitor radiation in the optical cavity; and a processor electrically coupled to the detector for analyzing the environmental changes adjacent the detection portion of the optical cavity based on a rate of decay of the radiation in the optical cavity monitored by the detector. The optical fiber section of the optical cavity includes a detection portion coated with a conductive layer capable of supporting a surface plasmon to provide cavity loss. The surface plasmon is responsive to the environmental changes adjacent the detection portion. The coherent optical source is optically coupled to the input coupling port of the optical cavity to provide the radiation in the optical cavity.
摘要翻译： 一种与相干光源一起使用以检测环境变化的装置和方法。 该装置包括：光腔，包括输入耦合端口和光纤部分; 光学耦合到所述光学腔以检测所述光学腔中的辐射的检测器; 以及处理器，其电耦合到所述检测器，用于基于由所述检测器监测的所述光学腔中的辐射的衰减速率来分析邻近所述光学腔的所述检测部分的环境变化。 光腔的光纤部分包括涂覆有能够支撑表面等离子体激元以提供空腔损失的导电层的检测部分。 表面等离子体激元响应于邻近检测部分的环境变化。 相干光源光耦合到光腔的输入耦合端口，以提供光腔中的辐射。
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