公开(公告)号：US06958816B1

公开(公告)日：2005-10-25

申请号：US10242221

申请日：2002-09-12

申请人： Aristide Dogariu ,  Gabriel Popescu ,  Raj Rajagopalan

发明人： Aristide Dogariu ,  Gabriel Popescu ,  Raj Rajagopalan

IPC分类号： G01B9/02 ,  G01N11/02 ,  G01N21/49

CPC分类号： G01N11/02 ,  G01N21/49 ,  G01N2011/008

摘要： Methods and systems for using dynamic light scattering, for investigating local rheological responses of complex fluids over a frequency range larger than that provided by standard instrumentation. A low-coherence radiation source is used with fiber optics to allow measurements of small volume spacing of up to approximately 1/10 of a picoliter. The methods and systems are based on dynamic light scattering, for investigating the local rheological response of a complex fluid over a frequency range larger than that provided by standard mechanical instrumentation. The low-coherence radiation used in a fiber optics configuration allows the measurements to be confined to a small volume around a tenth of a picoliter. The ability of the method to accurately measure both loss and storage moduli has been tested using both simple Newtonian liquids and viscoelastic, complex fluids. Monitoring liquid-gel transitions in polymer solutions has also been demonstrated. The unique capability of the technique to localize the measurement volume can be used for three-dimensional mapping of rheological properties in heterogeneous systems. Other embodiments can use open-air setups instead of optical fibers to transmit and receive the low coherence light.

摘要翻译： 使用动态光散射的方法和系统，用于调查复杂流体在比标准仪器提供的频率范围大的频率范围内的局部流变学响应。 低相干辐射源与光纤一起使用，允许测量高达约1/10皮升的小体积间隔。 该方法和系统基于动态光散射，用于调查在比标准机械仪器提供的频率范围内的复杂流体的局部流变响应。 在光纤配置中使用的低相干辐射允许测量被限制在十分之一微微升的小体积。 使用简单的牛顿液体和粘弹性复合流体测试了该方法准确测量损失和储存模量的能力。 监测聚合物溶液中的液体 - 凝胶转变也得到了证实。 该技术定位测量体积的独特能力可用于异构系统中流变特性的三维映射。 其他实施例可以使用露天设置来代替光纤来传输和接收低相干光。

公开(公告)号：US06738144B1

公开(公告)日：2004-05-18

申请号：US09465586

申请日：1999-12-17

申请人： Aristide Dogariu

发明人： Aristide Dogariu

IPC分类号： G01B902

CPC分类号： G01N21/474 ,  G01B9/02002 ,  G01B9/02005 ,  G01B9/02007 ,  G01B9/02014 ,  G01B9/02027 ,  G01B9/0209 ,  G01N15/0211 ,  G01N21/45 ,  G01N2015/0216

摘要： The disclosure relates to measuring devices that are particularly suited for the purpose of in-situ characterization of particles present in fluid substances or in air using a low-coherence interferometer. Specifically, the characterization includes average size, size distribution, volumetric density, and composition. The low-coherence interferometer utilizes a split band of radiation to illuminate a sample probe and a reference probe then combines the reflected radiation from both probes to determine the photon pathlength distribution of the tested particulate or colloidal containing stream and from this information determine the size characteristics of said stream. The methodology is relevant to possible spatially distributed control of chemical processes such as emulsion polymerization to produce paints, coatings, synthetic rubbers, or crystallization processes in pharmaceuticals, food, and bulk chemicals industries. Another application relates to on-line control of particle size and volumetric density is in combustion for diagnostics. The invention can be used for the characterization of coal particles, dense sprays and solid propellants or any other system, which is too dense for conventional optical measurement techniques. Beside the intrinsic particulate nature of these systems, random index of refraction variations are also created due to turbulence/temperature interactions. The remote optical characterization of systems with high-concentration of suspended solids is also important for water quality control and pollution monitoring.

摘要翻译： 本公开涉及特别适用于使用低相干干涉仪在流体物质或空气中存在的颗粒进行原位表征的目的的测量装置。 具体来说，表征包括平均尺寸，尺寸分布，体积密度和组成。 低相干干涉仪利用分离的辐射带照射样品探针，然后参考探针组合来自两个探针的反射辐射，以确定测试的颗粒或胶体流的光子路径长度分布，并从该信息确定尺寸特征 的流。 该方法与化学过程的可能的空间分布控制相关，例如乳液聚合以在药物，食品和散装化学工业中生产油漆，涂料，合成橡胶或结晶过程。 另一个应用涉及在线控制颗粒尺寸和体积密度是用于诊断的燃烧。 本发明可用于表征煤颗粒，致密喷雾剂和固体推进剂或任何其它系统，其对于常规光学测量技术来说太致密。 除了这些系统的固有颗粒性质外，由于湍流/温度相互作用，也产生随机折射率变化。 具有高浓度悬浮固体的系统的远程光学表征对于水质控制和污染监测也很重要。

公开(公告)号：US20100301234A1

公开(公告)日：2010-12-02

申请号：US12791222

申请日：2010-06-01

申请人： Aristide Dogariu ,  Kiminogu Sugaya ,  Gabriel Biener

发明人： Aristide Dogariu ,  Kiminogu Sugaya ,  Gabriel Biener

IPC分类号： A61N5/073

CPC分类号： F21V9/14 ,  A61N5/0616 ,  A61N2005/073 ,  C12N13/00 ,  F21V13/02

摘要： Systems and methods for controlling an object are disclosed. In one embodiment, a system and method pertain to irradiating the object with polarized electromagnetic radiation for a duration of time sufficient to effect a physical change with the object.

摘要翻译： 公开了用于控制对象的系统和方法。 在一个实施例中，系统和方法涉及用偏振电磁辐射照射物体足够长的时间以实现物体的物理变化。

公开(公告)号：US07551289B2

公开(公告)日：2009-06-23

申请号：US11399632

申请日：2006-04-06

申请人： Aristide Dogariu ,  Erwan Baleine

发明人： Aristide Dogariu ,  Erwan Baleine

IPC分类号： G01B9/02

CPC分类号： G01N21/4738 ,  G01N21/49 ,  G01N2011/008

摘要： A light scattering sensing system and method. In one embodiment, the system includes a sample branch configured to collect light signals backscattered from scattering centers contained in a coherence volume of a medium under evaluation, the sample branch including a multi-mode optical waveguide. In one embodiment, the method includes radiating low-coherence light into a scattering medium using a multi-mode optical waveguide, and collecting light signals backscattered by the scattering centers and light reflected by an end surface of the multi-mode optical waveguide using the multi-mode optical waveguide.

摘要翻译： 一种光散射感测系统及方法。 在一个实施例中，系统包括样本分支，该样本分支被配置为收集从包含在待评估介质的相干体积中的散射中心反向散射的光信号，所述样本分支包括多模光波导。 在一个实施例中，该方法包括使用多模光波导将低相干光照射到散射介质中，并且收集由散射中心反向散射的光信号和由多模光波导的端面反射的光，使用多 模式光波导。

公开(公告)号：US20050190372A1

公开(公告)日：2005-09-01

申请号：US10919223

申请日：2004-08-16

申请人： Aristide Dogariu

发明人： Aristide Dogariu

IPC分类号： A61B5/00 ,  G01N21/47 ,  G01N21/49 ,  G01B9/02

CPC分类号： A61B5/14558 ,  A61B5/0066 ,  A61B5/14546 ,  A61B2562/0242 ,  G01N21/474 ,  G01N21/49

摘要： An integrated optical sensor, using low coherence interferometry, is capable of determining analyte concentration in a material sample based on absorption, scattering and polarization. The sensor includes one or more light collectors, with each collector having a separation distance from the region where the sample is illuminated by the source. The light backscattered from the sample is combined with reference arm light at the same optical path length for each light collector. The intensity of interference may be correlated with the concentration of an analyte in the material, for example the glucose concentration in a turbid medium like skin. The sensor operation can be based on fiber optics technology, integrated optics, or a combination of these. The operation is such that the spectrally resolved scattering and absorption coefficients can be measured simultaneously. In addition, the operation of the sensor can be synchronized with other sensors, for example temperature, pressure, or heartrate.

摘要翻译： 使用低相干干涉测量的集成光学传感器能够基于吸收，散射和极化来确定材料样品中的分析物浓度。 该传感器包括一个或多个聚光器，每个收集器与样品被源照射的区域之间具有间隔距离。 从样品反向散射的光与每个光收集器的相同光程长度的参考臂光结合。 干扰强度可以与材料中分析物的浓度相关，例如在像浑浊的混浊介质中的葡萄糖浓度。 传感器操作可以基于光纤技术，集成光学或其组合。 该操作使得可以同时测量光谱分辨的散射和吸收系数。 此外，传感器的操作可以与其他传感器同步，例如温度，压力或心率。

公开(公告)号：US20090091741A1

公开(公告)日：2009-04-09

申请号：US11906644

申请日：2007-10-03

申请人： Aristide Dogariu

发明人： Aristide Dogariu

IPC分类号： G01N33/48

CPC分类号： G01N33/4905

摘要： An optical coagulation monitor and the method of monitoring blood coagulation status are disclosed. The method includes positioning a sample probe containing an optical fiber within a circulating blood; transmitting a low-coherence light through the optical fiber into the blood; detecting dynamic light scatter signals generated by the blood within a coherence volume and received through the optical fiber; analyzing the dynamic light scatter signals in comparison to a predetermined coagulation criterion; and reporting the coagulation status of the blood. The method can be used for monitoring blood coagulation status in vivo or in vitro in real time. Further disclosed is a method of determining blood clotting time in vitro using the optical coagulation monitor.

摘要翻译： 公开了一种光凝固监测器和监测凝血状态的方法。 该方法包括将含有光纤的样品探针定位在循环血液中; 将低相干光通过光纤传输到血液中; 检测由相干体积内的血液产生的并通过光纤接收的动态光散射信号; 与预定的凝固标准相比分析动态光散射信号; 并报告血液的凝血状态。 该方法可用于体内或体外实时监测凝血状态。 进一步公开了使用光学凝固监测器在体外测定血液凝固时间的方法。

公开(公告)号：US07471388B1

公开(公告)日：2008-12-30

申请号：US11472195

申请日：2006-06-21

申请人： Pieter Kik ,  Aristide Dogariu

发明人： Pieter Kik ,  Aristide Dogariu

IPC分类号： G01J3/44 ,  G01N21/65

CPC分类号： G01N21/658 ,  B82Y15/00 ,  B82Y20/00 ,  G02B6/1226

摘要： Tuning of the resonant state of a structure that scatters optical fields is achieved by varying the effective optical properties of the environment of a small conductive structure. The frequency tunable resonant scatterer includes a medium, a conductive structure within that medium and a second structure in the vicinity of said conductive structure, wherein the plasmon resonance of said conductive structure is tuned by way of the proximity of said second structure to said conductive structure. The second structure is gradually moved away from and closer to the nanoparticle to change the effective dielectric constant for tuning a resonance frequency of the conductive structure to plural excitation wavelengths.

摘要翻译： 通过改变小导电结构的环境的有效光学特性来实现散射光场的结构的谐振状态的调谐。 频率可调谐振荡散射体包括介质，该介质内的导电结构和在所述导电结构附近的第二结构，其中所述导电结构的等离子体共振通过所述第二结构与所述导电结构的接近来调节 。 第二结构逐渐移动离开并且更接近纳米颗粒以改变有效介电常数，以将导电结构的谐振频率调谐到多个激发波长。

公开(公告)号：US07310144B1

公开(公告)日：2007-12-18

申请号：US11417800

申请日：2006-05-04

申请人： Aristide Dogariu ,  Jeremy Ellis

发明人： Aristide Dogariu ,  Jeremy Ellis

IPC分类号： G01J4/00

CPC分类号： G01J4/00

摘要： The apparatus, system and method of the present invention provide a three-dimensional polarimeter probe having a coupler for coupling three components of an electromagnetic field that fluctuates in three-dimensions and an emitter for re-emitting a radiation corresponding to said three components. The radiation includes a polarized and an unpolarized component of said electromagnetic field and is used to determine the elements of a field-field correlation martix. In an embodiment, the system includes a detector located a distance from said probe for sensing said re-emitted radiation from said probe and a processor for determining a polarized and an unpolarized component of said electromagnetic field evaluating the polarized component to produce said polarimetry of said three-dimensional optical field.

摘要翻译： 本发明的装置，系统和方法提供一种三维偏振计探针，其具有用于耦合三维波动的电磁场的三个分量的耦合器和用于重新发射对应于所述三个分量的辐射的发射器。 所述辐射包括所述电磁场的极化和非偏振分量，并且用于确定场场相关性矩阵的元素。 在一个实施例中，系统包括位于离所述探头一定距离处的检测器，用于感测来自所述探针的所述再发射辐射;以及处理器，用于确定所述电磁场的极化和非偏振分量，评估偏振分量以产生所述偏振分量 三维光场。

公开(公告)号：US06807375B2

公开(公告)日：2004-10-19

申请号：US09757158

申请日：2001-01-09

申请人： Aristide Dogariu

发明人： Aristide Dogariu

IPC分类号： H04B1000

CPC分类号： H04B10/1121

摘要： This disclosure relates to a laser communication system for transmitting intelligence by means of partially coherent optical energy. The system provides improved transmission of intelligence from a transmitter site through non-confined free space and receiving said intelligence at a receiver site remote from and physically separate from said transmitter by non-confined free space. The system has a optical source at the transmitter site for producing a beam of spatially-coherent monochromatic, aperture limited electromagnetic optical energy as well as a modulator for modulating said beam with intelligence-bearing information to develop wavefronts of mutually-aligned orientation which beam is thereafter modified to partial coherence and a receiver site for both detecting said information in said partially coherent beam and deriving said demodulated information. The partially coherent beam has an a of preferably from 0.05 to 0.5 whereby improved reception is realized from optical communication over free-space of limited distances. Partial coherence of a coherent beam is achieved by numerous ways including passing it through a phase screen, or reflecting it against a rough surface, multimode laser operation or transmission through multimode optical fibers.

摘要翻译： 本公开涉及一种用于通过部分相干光能传输智能的激光通信系统。 该系统提供从发射机站点通过非限制的可用空间改进的智能传输，并且在非限制的自由空间远离和物理地与所述发射机分离的接收站处接收所述智能。 该系统在发射机站处具有用于产生空间相干单色，孔径限制电磁光能束的光源，以及用智能承载信息调制所述光束的调制器，以开发相互对准取向的波前，该波束是 然后修改为部分相干性和接收器站点，用于检测所述部分相干光束中的所述信息并导出所述解调信息。 部分相干光束具有优选0.05至0.5的a，从而通过有限距离的自由空间的光通信实现改进的接收。 通过多种方式实现相干光束的部分相干，包括通过相屏，或将其反射到粗糙表面，通过多模光纤进行多模激光操作或透射。

公开(公告)号：US06525823B1

公开(公告)日：2003-02-25

申请号：US09691300

申请日：2000-10-18

申请人： Aristide Dogariu ,  Gabriel Popescu

发明人： Aristide Dogariu ,  Gabriel Popescu

IPC分类号： G01B902

CPC分类号： G01N15/0211 ,  G01N9/32 ,  G01N2015/0092 ,  G01N2015/0693

摘要： An optical system for monitoring a colloidal suspension includes a chamber positioned to receive a sample of the suspension while the suspension is circulating in a mechanical system. An interferometer is positioned to generate interference patterns developed by a combination of a reference radiation signal with a sample radiation signal indicative of a characteristic in the suspension.

摘要翻译： 用于监测胶体悬浮液的光学系统包括定位成在悬架在机械系统中循环时接收悬架样品的腔室。 定位干涉仪以产生由参考辐射信号与指示悬浮液中的特征的样本辐射信号的组合而产生的干涉图案。