公开(公告)号：US09488524B2

公开(公告)日：2016-11-08

申请号：US14430658

申请日：2013-10-02

Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY

Inventor： Ichiro Ishimaru

IPC: G01J3/02 ,  G01J3/45 ,  G01J3/28 ,  G01J3/453 ,  G01N21/35

CPC classification number: G01J3/45 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/2803 ,  G01J3/4531 ,  G01J3/4532 ,  G01N2021/3595

Abstract: A spectroscopic measurement device includes: a dividing optical system for dividing a measurement beam emitted from each of a plurality of measurement points located within a measurement area of an object to be measured, into a first measurement beam and a second measurement beam; an imaging optical system; an optical path length difference providing means; a detector including a plurality of pixels; a processor for acquiring an interferogram of a measurement point of the object to be measured; a conjugate plane imaging optical system located between the object to be measured and the dividing optical system; and a periodicity providing means located on the conjugate plane.

Abstract translation: 光谱测量装置包括：分割光学系统，用于将位于待测物体的测量区域内的多个测量点中的每一个发射的测量光束分成第一测量光束和第二测量光束; 成像光学系统; 光路长度差提供装置; 检测器，包括多个像素; 用于获取待测量对象的测量点的干涉图的处理器; 位于待测物体与分光光学系统之间的共轭平面成像光学系统; 以及位于共轭平面上的周期性提供装置。

公开(公告)号：US09482576B2

公开(公告)日：2016-11-01

申请号：US14668106

申请日：2015-03-25

Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY

Inventor： Ichiro Ishimaru

IPC: G01J3/02 ,  G01J3/453 ,  A61B5/1455 ,  G01J3/28

CPC classification number: G01J3/0208 ,  A61B5/1455 ,  A61B2562/0233 ,  G01J3/021 ,  G01J3/2803 ,  G01J3/4531 ,  G01J3/4535

Abstract: A spectroscopic measurement device includes: a dividing optical system for dividing a measurement beam emitted from each of a plurality of measurement points located within a measurement area of an object to be measured, into a first measurement beam and a second measurement beam; an imaging optical system; an optical path length difference providing means; a detector including a plurality of pixels; a processor for acquiring an interferogram of a measurement point of the object to be measured; a conjugate plane imaging optical system located between the object to be measured and the dividing optical system; and a periodicity providing means located on the conjugate plane.

Abstract translation: 光谱测量装置包括：分割光学系统，用于将位于待测物体的测量区域内的多个测量点中的每一个发射的测量光束分成第一测量光束和第二测量光束; 成像光学系统; 光路长度差提供装置; 检测器，包括多个像素; 用于获取待测量对象的测量点的干涉图的处理器; 位于待测物体与分光光学系统之间的共轭平面成像光学系统; 以及位于共轭平面上的周期性提供装置。

公开(公告)号：US20160282184A1

公开(公告)日：2016-09-29

申请号：US15009755

申请日：2016-01-28

Applicant: Si-Ware Systems

Inventor： Diaa Khalil ,  Bassam A. Saadany ,  Yasser M. Sabry

IPC: G01J3/45 ,  G01J3/10

CPC classification number: G01J3/45 ,  G01J3/0256 ,  G01J3/108 ,  G01J3/26 ,  G01J3/453 ,  G01J3/4531 ,  G01J3/4532 ,  G01J3/4535

Abstract: A spectrometer with increased optical throughput and/or spectral resolution includes a plurality of interferometers coupled in parallel. An optical splitter divides a source light beam into a plurality of input beams and directs each of the input beams to a respective one of the plurality of interferometers. One or more detectors are optically coupled to receive a respective output from each of the plurality of interferometers and is configured to detect an interferogram produced as a result of the outputs.

Abstract translation: 具有增加的光学吞吐量和/或光谱分辨率的光谱仪包括并联耦合的多个干涉仪。 光分路器将源光束分成多个输入光束，并将每个输入光束引导到多个干涉仪中的相应一个。 一个或多个检测器被光学耦合以从多个干涉仪中的每一个接收相应的输出，并且被配置为检测作为输出结果产生的干涉图。

公开(公告)号：US09316540B1

公开(公告)日：2016-04-19

申请号：US14642827

申请日：2015-03-10

Applicant: LightHaus Photonics, Pte. Ltd.

Inventor： Poh Boon Phua

IPC: G01J3/46 ,  G01J3/45 ,  G01J3/447 ,  G01J3/28 ,  G01J3/02

CPC classification number: G01J3/0272 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/447 ,  G01J3/4531 ,  G01J3/4532

Abstract: A spectrometer for measuring a spectral signature of an object comprises fringe generating optics for use with a camera and a processor. The fringe generating optics are formed of front optics and birefringent optics. The front optics comprises a diffuser adapted to receive light from the object. The birefringent optics is adapted to receive light from the diffuser and to generate interference fringes. The camera is adapted to receive the interference fringes and the processor generates the spectral signature of the object. This spectrometer is an improved Fourier transform spectrometer suitable for use with digital cameras, such as cameras found in mobile devices.

公开(公告)号：US20160084753A1

公开(公告)日：2016-03-24

申请号：US14957280

申请日：2015-12-02

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： David L. Perkins

IPC: G01N21/25 ,  E21B49/00 ,  G01N33/24 ,  G01J3/45

CPC classification number: G01N21/25 ,  E21B49/00 ,  E21B49/08 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/45 ,  G01J3/4531 ,  G01N21/31 ,  G01N33/0009 ,  G01N33/24 ,  G01N33/28 ,  G01V8/00

Abstract: A spatial heterodyne spectrometer may employ an integrated computational element (ICE) to obtain a measure of one or more fluid properties without requiring any moving parts, making it particularly suitable for use in a downhole environment. One illustrative method embodiment includes: directing light from a light source to illuminate a sample; transforming light from the sample into spatial fringe patterns using a dispersive two-beam interferometer; adjusting a spectral weighting of the spatial fringe patterns using, an integrated computation element (ICE); focusing spectral-weight-adjusted spatial fringe patterns into combined fringe intensities; detecting the combined fringe intensities; and deriving at least one property of the sample.

Abstract translation: 空间外差谱仪可以采用集成的计算元件（ICE）来获得一种或多种流体性质的量度，而不需要任何移动部件，使其特别适用于井下环境。 一个示例性方法实施例包括：引导来自光源的光以照射样品; 使用色散双光束干涉仪将光从样品转变成空间条纹图案; 使用积分计算元件（ICE）来调整空间条纹图案的光谱加权; 将光谱重量调整的空间条纹图案聚焦成条纹强度; 检测组合条纹强度; 并导出样品的至少一个性质。

公开(公告)号：US09207122B2

公开(公告)日：2015-12-08

申请号：US14373132

申请日：2013-01-31

Applicant: Wayne State University

Inventor： Gregory Auner ,  Changhe Huang ,  Christopher M. Thrush ,  Michelle A. Brusatori

IPC: G01J3/28 ,  G01J3/44 ,  G01N21/65 ,  G01J3/18 ,  G01J3/36 ,  G01J3/453 ,  G01J3/02 ,  G02B5/18 ,  G02B5/20

CPC classification number: G01J3/44 ,  G01J3/0208 ,  G01J3/0272 ,  G01J3/18 ,  G01J3/36 ,  G01J3/4531 ,  G01N21/65 ,  G02B5/1861 ,  G02B5/20

Abstract: An apparatus for performing Raman spectral analysis of a sample is described, comprising a coherent light source, an first optical chain to direct the coherent light to impinge on the sample, a second optical chain to direct the scattered light onto a diffraction grating, and a third optical chain to direct the diffracted light onto detection array. The diffraction grating is a plurality of alternating-slope stairsteps, wherein the portion of the step disposed parallel to the base of the diffraction grating is disposed so as to be orthogonal to the path of the scattered light from the second optical chain. The zeroth-order fringe is selected by a slit and directed onto camera. The resultant interferogram is Fourier transformed to produce a representation of the Raman spectrum.

Abstract translation: 描述了一种用于执行样本的拉曼光谱分析的装置，包括相干光源，用于引导相干光照射在样本上的第一光链，将散射光引导到衍射光栅上的第二光链，以及 第三光链以将衍射光引导到检测阵列上。 衍射光栅是多个交替斜坡步态，其中平行于衍射光栅的基底的台阶部分设置成与来自第二光链的散射光的路径正交。 零级条纹由狭缝选择并定向到相机上。 所得干涉图被傅立叶变换以产生拉曼光谱的表示。

公开(公告)号：US20150198483A1

公开(公告)日：2015-07-16

申请号：US14668106

申请日：2015-03-25

Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY

Inventor： Ichiro ISHIMARU

IPC: G01J3/45 ,  G01J3/26 ,  G01J3/02

CPC classification number: G01J3/0208 ,  A61B5/1455 ,  A61B2562/0233 ,  G01J3/021 ,  G01J3/2803 ,  G01J3/4531 ,  G01J3/4535

Abstract: A spectroscopic measurement device includes: a dividing optical system for dividing a measurement beam emitted from each of a plurality of measurement points located within a measurement area of an object to be measured, into a first measurement beam and a second measurement beam; an imaging optical system; an optical path length difference providing means; a detector including a plurality of pixels; a processor for acquiring an interferogram of a measurement point of the object to be measured; a conjugate plane imaging optical system located between the object to be measured and the dividing optical system; and a periodicity providing means located on the conjugate plane.

公开(公告)号：US09000354B2

公开(公告)日：2015-04-07

申请号：US13646423

申请日：2012-10-05

Applicant: Telcordia Technologies, Inc.

Inventor： Ted Woodward ,  Anjali Agarwal ,  Nicholas Peters

IPC: G01J1/04 ,  G01N21/17 ,  G01J1/42 ,  H01L31/0232 ,  G02B6/293 ,  G01J3/453 ,  G01N21/41 ,  G01J1/58 ,  G02F1/35 ,  G01S17/10 ,  G01S7/486 ,  G01S7/487 ,  H04B10/70 ,  G02F1/39

CPC classification number: G01N21/17 ,  G01J1/0425 ,  G01J1/0459 ,  G01J1/42 ,  G01J1/58 ,  G01J3/4531 ,  G01N21/41 ,  G01S7/486 ,  G01S7/487 ,  G01S17/10 ,  G02B6/29338 ,  G02F1/3536 ,  G02F1/39 ,  G02F2001/392 ,  H01L31/0232 ,  H04B10/70

Abstract: Systems for enhancing the sensitivity of detecting an optical signal using nonlinear optics and method of performing the same. In one embodiment, a single-photon detection system includes an optical amplifier realized in a waveguide, and a photodetector coupled to an output of the optical amplifier. A light detection and ranging system includes the optical amplifier coupled to an optical source and one photodetector. In another embodiment, a photodetection system includes a plurality of optical frequency converters, coupled to an optical source, that sequentially convert a wavelength of photons of the optical source to a final wavelength, and a single-photon photodetector coupled to the optical frequency converters to detect single photons produced by the optical source. In another embodiment, an optical sensor includes an optical pump, and a transducer including an optical ring cavity coupled to the optical pump and configured to utilize optical four-wave mixing to detect an external stimulus.

Abstract translation: 用于增强使用非线性光学器件检测光信号的灵敏度的系统及其执行方法。 在一个实施例中，单光子检测系统包括在波导中实现的光放大器和耦合到光放大器的输出的光电检测器。 光检测和测距系统包括耦合到光源和一个光电检测器的光放大器。 在另一个实施例中，光电检测系统包括耦合到光源的多个光学频率转换器，其将光源的光子的波长顺序地转换成最终的波长，以及耦合到光变换器的单光子光电探测器 检测由光源产生的单个光子。 在另一个实施例中，光学传感器包括光学泵和包括耦合到光学泵的光学环腔的换能器，并被配置为利用光学四波混频来检测外部刺激。

公开(公告)号：US20150002848A1

公开(公告)日：2015-01-01

申请号：US14372093

申请日：2013-01-15

Applicant: FEMTOLASERS PRODUCTIONS GMBH

Inventor： Gabriel-Florin Tempea

IPC: G01J3/45 ,  G01N21/25

CPC classification number: G01J3/45 ,  E01H5/045 ,  G01J3/4531 ,  G01J2003/283 ,  G01J2003/451 ,  G01J2003/4538 ,  G01M11/005 ,  G01N21/25 ,  G01N21/45 ,  G01N2021/4126 ,  G01N2201/126 ,  G02B1/115 ,  G02B5/0825

Abstract: Method and device for optical inspection of a sample using spectral interferometry, wherein a beam (2″) emitted by a radiation source (1) is directed onto the sample (5) and a reference beam (2′) is directed onto a reference sample (4), and the spectral interference of both beams after being reflected on the samples or after passing the samples is recorded by means of a spectrograph (6); the interferogram I(ω) thus obtained is numerically derived with respect to the angular frequency ω. For the function I′(ω) thus obtained the zeros ωi are calculated numerically as solutions to the equation I′(ω)=0 and the frequency-dependent group delay τ(ω) is then calculated from the zeros ωi according to the equation τ(ωn)=π/(ωi+1−ωi), wherein i=1, 2 . . . and ωn=(ωi+1+ωi)2.

Abstract translation: 用于使用光谱干涉测量法对样品进行光学检查的方法和装置，其中由辐射源（1）发射的光束（2“）被引导到样品（5）上，并且参考光束（2'）被引导到参考样品 （4），并且两个光束在样品上反射之后或在通过样品之后的光谱干涉通过光谱仪（6）记录; 这样获得的干涉图I（ω）相对于角频率ω被数值地导出。 对于由此获得的函数I'（ω），零数值被计算为等式I'（ω）= 0的解，并且然后根据等式从零的ωi计算频率相关组延迟τ（ω） τ（ωn）=＆pgr; /（ωi+ 1-ωi），其中i = 1,2。 。 。 和ωn=（ωi+ 1 +ωi）2。

公开(公告)号：US20140375999A1

公开(公告)日：2014-12-25

申请号：US14314210

申请日：2014-06-25

Applicant: Katsunari OKAMOTO

Inventor： Katsunari OKAMOTO

IPC: G01J3/45

CPC classification number: G01J3/4532 ,  G01J3/4531

Abstract: An apparatus including a transform spectrometer with n×4 multi-mode interface optical hybrid couplers, wherein n=2 or 4, is herein provided. A transform spectrometer apparatus implemented on a planar waveguide circuit is also provided, including: an input optical signal waveguide for carrying an input optical signal; a plurality of input couplers connected to the input optical signal waveguide, each input coupler capable of sending an output signal; an array of interleaved waveguide Mach-Zehner interferometers (MZI), with each MZI coupled to a respective input coupler and each MZI having at least one MZI waveguide for receiving an output signal; and, a plurality of output coupler portions, each output coupler portion coupled to a respective MZI. Each output coupler portion includes one or more inputs along which the output is received from the MZI, and a plurality of outputs for outputting a plurality of signals.

Abstract translation: 本发明提供一种包括n×4多模式界面光学混合耦合器的变换光谱仪，其中n = 2或4。 还提供了在平面波导电路上实现的变换光谱仪装置，包括：用于承载输入光信号的输入光信号波导; 连接到输入光信号波导的多个输入耦合器，每个输入耦合器能够发送输出信号; 交织波导马赫切纳干涉仪阵列（MZI），每个MZI耦合到相应的输入耦合器，每个MZI具有至少一个用于接收输出信号的MZI波导; 以及多个输出耦合器部分，每个输出耦合器部分耦合到相应的MZI。 每个输出耦合器部分包括从MZI接收输出的一个或多个输入，以及用于输出多个信号的多个输出。