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1. 发明授权

US4455089A Refractive index and absorption detector for liquid chromatography based on Fabry-Perot interferometry 失效
$Refractive index and absorption detector for liquid chromatography based on Fabry-Perot interferometry$
标题翻译：基于法布里 - 珀罗干涉法的液相色谱折射率和吸收检测器
公开(公告)号：US4455089A
公开(公告)日：1984-06-19
申请号：US460467
申请日：1983-01-24
申请人： Edward S. Yeung , Steven D. Woodruff
发明人： Edward S. Yeung , Steven D. Woodruff
IPC分类号： G01B9/02 , G01N21/05 , G01N21/45 , G01N30/74
CPC分类号： G01N30/74 , G01N21/45 , G01N2030/746 , G01N21/05
摘要： A refractive index and absorption detector for liquid chromatography. It is based in part on a Fabry-Perot interferometer and is used for the improved detection of refractive index and absorption. It includes a Fabry-Perot interferometer having a normally fixed first partially reflecting mirror and a movable second partially reflecting mirror. A chromatographic flow-cell is positioned between the mirrors along the optical axis of a monochromatic laser beam passing through the interferometer. A means for deriving information about the interference fringes coming out of the interferometer is used with a mini-computer to compute the refractive index of the specimen injected into the flow cell. The minicomputer continuously scans the interferometer for continuous refractive index readings and outputs the continuous results of the scans on a chart recorder. The absorption of the specimen can concurrently be scanned by including a second optical path for an excitation laser which will not interfere with the first laser, but will affect the specimen so that absorption properties can be detected. By first scanning for the refractive index of the specimen, and then immediately adding the excitation laser and subsequently scanning for the refractive index again, the absorption of the specimen can be computed and recorded.
摘要翻译：液相色谱的折射率和吸收检测器。它部分基于法布里 - 珀罗干涉仪，用于改进折射率和吸收的检测。它包括具有通常固定的第一部分反射镜和可动第二部分反射镜的法布里 - 珀罗干涉仪。色谱流动池位于通过干涉仪的单色激光束的光轴之间的反射镜之间。与微型计算机一起使用用于导出关于从干涉仪出来的干涉条纹的信息的装置来计算注入到流动池中的样本的折射率。小型计算机连续扫描干涉仪以获得连续折射率读数，并在图表记录仪上输出扫描的连续结果。可以通过包括不会干扰第一激光的激发激光器的第二光路来同时扫描样品的吸收，但会影响样品，从而可以检测吸收特性。首先扫描样品的折射率，然后立即加入激发激光，然后再次扫描折射率，可以计算和记录样品的吸收。

2. 发明授权

US09548585B1 Multi-point laser ignition device 有权
标题翻译：多点激光点火装置
公开(公告)号：US09548585B1
公开(公告)日：2017-01-17
申请号：US14800959
申请日：2015-07-16
申请人： Dustin L. McIntyre , Steven D. Woodruff
发明人： Dustin L. McIntyre , Steven D. Woodruff
IPC分类号： H01S3/23 , H01S3/0941 , H01S3/11 , H01S3/00 , G02B19/00 , H01T14/00 , H01S3/16
CPC分类号： H01S3/2383 , F02P15/08 , F02P23/04 , G02B19/0009 , G02B19/0047 , H01S3/005 , H01S3/0071 , H01S3/0602 , H01S3/0627 , H01S3/0941 , H01S3/09415 , H01S3/11 , H01S3/113 , H01S3/1611 , H01S3/1643 , H01S5/423 , H01T14/00
摘要： A multi-point laser device comprising a plurality of optical pumping sources. Each optical pumping source is configured to create pumping excitation energy along a corresponding optical path directed through a high-reflectivity mirror and into substantially different locations within the laser media thereby producing atomic optical emissions at substantially different locations within the laser media and directed along a corresponding optical path of the optical pumping source. An output coupler and one or more output lenses are configured to produce a plurality of lasing events at substantially different times, locations or a combination thereof from the multiple atomic optical emissions produced at substantially different locations within the laser media. The laser media is a single continuous media, preferably grown on a single substrate.
摘要翻译：一种包括多个光泵浦源的多点激光装置。每个光泵浦源被配置为沿着穿过高反射率反射镜的相应光路产生泵浦激发能，并且在激光介质内形成基本上不同的位置，从而在激光介质内的基本上不同的位置处产生原子光发射，并沿着相应的光泵浦源的光路。输出耦合器和一个或多个输出透镜被配置为在与激光介质内的基本上不同的位置处产生的多原子光发射的基本上不同的时间，位置或其组合处产生多个激光事件。激光介质是单个连续介质，优选生长在单个基底上。

3. 发明申请

US20140209794A1 LASER BASED ANALYSIS USING A PASSIVELY Q-SWITCHED LASER 有权
标题翻译：使用普通Q开关激光器进行基于激光的分析
公开(公告)号：US20140209794A1
公开(公告)日：2014-07-31
申请号：US13749842
申请日：2013-01-25
申请人： Steven D. Woodruff , Dustin L. Mcintyre
发明人： Steven D. Woodruff , Dustin L. Mcintyre
IPC分类号： G01J1/42
CPC分类号： G01J3/443 , G01N21/6402 , G01N21/65 , G01N21/718
摘要： A device for Laser based Analysis using a Passively Q-Switched Laser comprising an optical pumping source optically connected to a laser media. The laser media and a Q-switch are positioned between and optically connected to a high reflectivity mirror (HR) and an output coupler (OC) along an optical axis. The output coupler (OC) is optically connected to the output lens along the optical axis. A means for detecting atomic optical emission comprises a filter and a light detector. The optical filter is optically connected to the laser media and the optical detector. A control system is connected to the optical detector and the analysis electronics. The analysis electronics are optically connected to the output lens. The detection of the large scale laser output production triggers the control system to initiate the precise timing and data collection from the detector and analysis.
摘要翻译：一种用于使用被动Q开关激光器的基于激光的分析的装置，包括光学连接到激光介质的光泵浦源。激光介质和Q开关位于光学连接到高反射镜（HR）和输出耦合器（OC）之间并且光学连接。输出耦合器（OC）沿光轴与输出透镜光学连接。用于检测原子光发射的装置包括滤光器和光检测器。光学滤波器光学连接到激光介质和光学检测器。控制系统连接到光学检测器和分析电子器件。分析电子器件光学连接到输出透镜。大规模激光输出生产的检测触发了控制系统，从检测器和分析开始精确的定时和数据采集。

4. 发明授权

US08674306B2 Gas sensing system employing raman scattering 有权
标题翻译：采用拉曼散射的气体传感系统
公开(公告)号：US08674306B2
公开(公告)日：2014-03-18
申请号：US13300988
申请日：2011-11-21
申请人： Joel Falk , Peng Kevin Chen , Michael Paul Buric , Steven D. Woodruff
发明人： Joel Falk , Peng Kevin Chen , Michael Paul Buric , Steven D. Woodruff
IPC分类号： G01N21/35
CPC分类号： G01N21/65
摘要： A gas detection system includes a light detector, a pump laser with spectral emission between UV and IR wavelengths and structured to generate a laser beam, a hollow waveguide structured to receive a sample gas, the hollow waveguide having a bandwidth sufficient to transmit the laser beam and Stokes Raman photons scattered by the sample gas, and an optical system. The optical system is structured to: (i) direct the laser beam into the hollow waveguide such that it propagates in the hollow waveguide in one or more low-order low-loss waveguide modes, and (ii) direct Raman signals generated within the hollow waveguide in response to the laser beam interacting with the sample gas toward the light detector, the Raman signal including the Stokes Raman photons.
摘要翻译：气体检测系统包括光检测器，在UV和IR波长之间具有光谱发射并被构造为产生激光束的泵激光器，构造成接收样品气体的中空波导，所述中空波导具有足以传输激光束的带宽和斯托克斯拉曼光子由样品气体分散，以及光学系统。光学系统被构造成：（i）将激光束引导到中空波导中，使得其在一个或多个低阶低损耗波导模式中在中空波导中传播，以及（ii）在中空波导内产生的直接拉曼信号波导响应于与样品气体朝向光检测器相互作用的激光束，拉曼信号包括斯托克斯拉曼光子。

5. 发明授权

US08786840B1 Method and device for remotely monitoring an area using a low peak power optical pump 有权
标题翻译：使用低峰值功率光泵远程监控区域的方法和装置
公开(公告)号：US08786840B1
公开(公告)日：2014-07-22
申请号：US13358853
申请日：2012-01-26
申请人： Steven D. Woodruff , Dustin L. Mcintyre , Jinesh C. Jain
发明人： Steven D. Woodruff , Dustin L. Mcintyre , Jinesh C. Jain
IPC分类号： G01J3/00 , G01J3/30 , H01S3/093 , H01S3/11
CPC分类号： G01J3/44 , G01J3/10 , G01J2003/104 , H01S3/005 , H01S3/094053 , H01S3/094061 , H01S3/113 , H01S3/1611 , H01S3/1643 , H01S3/2383
摘要： A method and device for remotely monitoring an area using a low peak power optical pump comprising one or more pumping sources, one or more lasers; and an optical response analyzer. Each pumping source creates a pumping energy. The lasers each comprise a high reflectivity mirror, a laser media, an output coupler, and an output lens. Each laser media is made of a material that emits a lasing power when exposed to pumping energy. Each laser media is optically connected to and positioned between a corresponding high reflectivity mirror and output coupler along a pumping axis. Each output coupler is optically connected to a corresponding output lens along the pumping axis. The high reflectivity mirror of each laser is optically connected to an optical pumping source from the one or more optical pumping sources via an optical connection comprising one or more first optical fibers.
摘要翻译：一种使用包括一个或多个泵浦源，一个或多个激光器的低峰值功率光泵来远程监测区域的方法和装置; 和光学响应分析仪。每个泵浦源产生泵浦能量。激光器各自包括高反射镜，激光介质，输出耦合器和输出透镜。每个激光介质由暴露于泵浦能量时发射激光功率的材料制成。每个激光介质沿着泵送轴光学地连接到并定位在相应的高反射镜和输出耦合器之间。每个输出耦合器沿泵送轴光学连接到相应的输出透镜。每个激光器的高反射镜通过包括一个或多个第一光纤的光学连接从一个或多个光泵浦源光学连接到光泵浦源。

6. 发明授权

US4498774A Micro-polarimeter for high performance liquid chromatography 失效
标题翻译：用于高效液相色谱的微型偏光仪
公开(公告)号：US4498774A
公开(公告)日：1985-02-12
申请号：US489031
申请日：1983-04-27
申请人： Edward E. Yeung , Larry E. Steenhoek , Steven D. Woodruff , Jeng-Chung Kuo
发明人： Edward E. Yeung , Larry E. Steenhoek , Steven D. Woodruff , Jeng-Chung Kuo
IPC分类号： G01N21/05 , G01N21/21 , G01N30/74 , G01N31/06
CPC分类号： G01N30/74 , G01N21/21 , G01N2030/746 , G01N21/05
摘要： A micro-polarimeter interfaced with a system for high performance liquid chromatography, for quantitatively analyzing micro and trace amounts of optically active organic molecules, particularly carbohydrates. A flow cell with a narrow bore is connected to a high performance liquid chromatography system. Thin, low birefringence cell windows cover opposite ends of the bore. A focused and polarized laser beam is directed along the longitudinal axis of the bore as an eluent containing the organic molecules is pumped through the cell. The beam is modulated by air gap Faraday rotators for phase sensitive detection to enhance the signal to noise ratio. An analyzer records the beams's direction of polarization after it passes through the cell. Calibration of the liquid chromatography system allows determination of the quantity of organic molecules present from a determination of the degree to which the polarized beam is rotated when it passes through the eluent.
摘要翻译：与用于高效液相色谱的系统接口的微旋光仪，用于定量分析微量和痕量的光学活性有机分子，特别是碳水化合物。具有窄孔的流动池连接到高效液相色谱系统。薄，低双折射单元窗口覆盖孔的相对端。聚焦和偏振的激光束沿着孔的纵向轴线引导，因为含有有机分子的洗脱液被泵送通过细胞。光束由气隙法拉第旋转器调制，用于相位敏感检测，以增强信噪比。分析仪在通过电池后记录光束的极化方向。液相色谱系统的校准允许通过确定偏振光束通过洗脱液时旋转的程度来确定存在的有机分子的量。

7. 发明授权

US08934511B1 Laser interlock system 有权
标题翻译：激光互锁系统
公开(公告)号：US08934511B1
公开(公告)日：2015-01-13
申请号：US14023822
申请日：2013-09-11
申请人： Steven D. Woodruff , Dustin L. Mcintyre
发明人： Steven D. Woodruff , Dustin L. Mcintyre
IPC分类号： H01S3/00 , H01S3/10
CPC分类号： H01S3/0014 , F02P23/04 , H01S3/091
摘要： A method and device for providing a laser interlock having a first optical source, a first beam splitter, a second optical source, a detector, an interlock control system, and a means for producing dangerous optical energy. The first beam splitter is optically connected to the first optical source, the first detector and the second optical source. The detector is connected to the interlock control system. The interlock control system is connected to the means for producing dangerous optical energy and configured to terminate its optical energy production upon the detection of optical energy at the detector from the second optical source below a predetermined detector threshold. The second optical source produces an optical energy in response to optical energy from the first optical source. The optical energy from the second optical source has a different wavelength, polarization, modulation or combination thereof from the optical energy of the first optical source.
摘要翻译：一种用于提供具有第一光源，第一分束器，第二光源，检测器，互锁控制系统和用于产生危险光能的装置的激光互锁的方法和装置。第一分束器光学连接到第一光源，第一检测器和第二光源。检测器连接到互锁控制系统。联锁控制系统连接到用于产生危险光能的装置，并被配置为在检测器处从第二光源检测到低于预定检测器阈值的光能时终止其光能产生。第二光源响应于来自第一光源的光能产生光能。来自第二光源的光能具有与第一光源的光能不同的波长，偏振，调制或其组合。

8. 发明申请

US20120176600A1 Gas Sensing System Employing Raman Scattering 有权
标题翻译：采用拉曼散射的气体传感系统
公开(公告)号：US20120176600A1
公开(公告)日：2012-07-12
申请号：US13300988
申请日：2011-11-21
申请人： Joel Falk , Peng Kevin Chen , Michael Paul Buric , Steven D. Woodruff
发明人： Joel Falk , Peng Kevin Chen , Michael Paul Buric , Steven D. Woodruff
IPC分类号： G01J3/44 , G01J3/00
CPC分类号： G01N21/65
摘要： A gas detection system includes a light detector, a pump laser with spectral emission between UV and IR wavelengths and structured to generate a laser beam, a hollow waveguide structured to receive a sample gas, the hollow waveguide having a bandwidth sufficient to transmit the laser beam and Stokes Raman photons scattered by the sample gas, and an optical system. The optical system is structured to: (i) direct the laser beam into the hollow waveguide such that it propagates in the hollow waveguide in one or more low-order low-loss waveguide modes, and (ii) direct Raman signals generated within the hollow waveguide in response to the laser beam interacting with the sample gas toward the light detector, the Raman signal including the Stokes Raman photons.
摘要翻译：气体检测系统包括光检测器，在UV和IR波长之间具有光谱发射并被构造为产生激光束的泵激光器，构造成接收样品气体的中空波导，所述中空波导具有足以传输激光束的带宽和斯托克斯拉曼光子由样品气体分散，以及光学系统。光学系统被构造成：（i）将激光束引导到中空波导中，使得其在一个或多个低阶低损耗波导模式中在中空波导中传播，以及（ii）在中空波导内产生的直接拉曼信号波导响应于与样品气体朝向光检测器相互作用的激光束，拉曼信号包括斯托克斯拉曼光子。

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