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1. 发明申请

WO2017044604A1 COMPUTATIONALLY-ASSISTED MULTI-HETERODYNE SPECTROSCOPY 审中-公开
标题翻译：计算辅助多异构体光谱
公开(公告)号：WO2017044604A1
公开(公告)日：2017-03-16
申请号：PCT/US2016/050744
申请日：2016-09-08
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： BURGHOFF, David , YANG, Yang , HU, Qing
IPC分类号： G01J3/28 , G01J3/42 , G01J3/433 , G01J3/453 , G01J9/04
CPC分类号： G01J3/28 , G01J3/10 , G01J3/108 , G01J3/2803 , G01J3/42 , G01J3/4531 , G01J9/04 , G01J2003/102 , G01J2003/284
摘要： According to one aspect, a multi-heterodyne system (10) is disclosed, which comprises a first laser source (12) for generating multi-mode radiation (LB1) having a frequency spectrum having a first plurality of phase coherent frequencies, and a second laser source (14) for generating multi-mode radiation (LB2) having a frequency spectrum having a second plurality of phase coherent frequencies. The system further comprises at least one detector (22) for detecting a combination of the multi-mode radiation generated by the first and second laser sources so as to provide a multi-heterodyne signal having a frequency spectrum characterized by a plurality of beat frequencies, each beat frequency corresponding to a pairwise difference in the first and second plurality of phase coherent frequencies. The system further comprises an analyzer (24) for receiving said multi-heterodyne signal and configured to employ a predictive model of the multi-heterodyne signal to provide estimates of any of phase error and timing error associated with the beat frequencies.
摘要翻译：根据一个方面，公开了一种多外差系统（10），其包括用于产生具有第一多个相位相干频率的频谱的多模辐射（LB1）的第一激光源（12）用于产生具有第二多个相位相干频率的频谱的多模辐射（LB2）的激光源（14）。该系统还包括至少一个检测器（22），用于检测由第一和第二激光源产生的多模式辐射的组合，以便提供具有由多个拍频表征的频谱的多外差信号，每个拍频对应于第一和第二多个相位相干频率中的成对差。该系统还包括用于接收所述多外差信号并被配置为使用多外差信号的预测模型的分析器（24），以提供与拍频相关联的任何相位误差和定时误差的估计。

2. 发明申请

WO2016174127A1 A COMPACT INTERFEROMETER 审中-公开
标题翻译：紧凑型干扰仪
公开(公告)号：WO2016174127A1
公开(公告)日：2016-11-03
申请号：PCT/EP2016/059472
申请日：2016-04-28
申请人： IMEC VZW , SAMSUNG ELECTRONICS CO. LTD.
发明人： CLAES, Tom
IPC分类号： G01J3/453 , G01J3/02 , G02B6/293
CPC分类号： G01J3/0218 , G01B9/02015 , G01B9/02083 , G01J3/021 , G01J3/0259 , G01J3/44 , G01J3/4531 , G02B6/29346 , G02B6/29349
摘要： An interferometer (100) comprising a multimode waveguide (120) to which an input waveguide (110) is coupled at one side thereof. A first waveguide (130) is optically coupled to a second side of the multimode waveguide (120), and is terminated by a first waveguide mirror (150). A second waveguide (140) may be optically coupled to a second side of the multimode waveguide (120) and terminated by a second waveguide mirror (160), or a second waveguide mirror (160) may be directly optically coupled to a second side of the multimode waveguide (120). The multimode waveguide is adapted to distribute a light signal from the input waveguide (110) towards the first (150) and second (160) waveguide mirror via the first waveguide (130) and, if present, via the second waveguide (140). The interferometer comprises at least one signal readout structure (170) partly or completely integrated in the multimode waveguide and positioned for receiving reflected light from the first (150) and/or second (160) waveguide mirror with a power that depends on the phase difference between the two reflected waves.
摘要翻译：一种干涉仪（100），包括多模波导（120），输入波导（110）在其一侧耦合到该多模波导（120）。第一波导（130）光学耦合到多模波导（120）的第二侧，并且被第一波导反射镜（150）端接。第二波导（140）可以光学耦合到多模波导（120）的第二侧并且被第二波导反射镜（160）端接，或者第二波导反射镜（160）可以直接光耦合到第二波导多模波导（120）。多模波导适于经由第一波导（130）和经由第二波导（140）将来自输入波导（110）的光信号分配到第一（150）和第二（160）波导反射镜。所述干涉仪包括至少一个信号读出结构（170），其部分地或完全地集成在所述多模波导中并且被定位成用于接收来自所述第一（150）和/或第二（160）波导反射镜的反射光，其具有取决于相位差的功率两个反射波之间。

3. 发明申请

WO2015198562A3 IMAGING DEVICE AND METHOD 审中-公开
标题翻译：成像装置和方法
公开(公告)号：WO2015198562A3
公开(公告)日：2016-03-24
申请号：PCT/JP2015003023
申请日：2015-06-17
申请人： SONY CORP
发明人： OZAWA KEN
IPC分类号： G01J3/02 , G01J3/28 , G01J3/453 , G01J4/00 , G01J4/04 , G01N21/35
CPC分类号： G01J1/42 , G01J1/0411 , G01J1/0429 , G01J1/0488 , G01J3/0205 , G01J3/0208 , G01J3/0224 , G01J3/027 , G01J3/2823 , G01J3/4531 , G01J4/04 , G01J2004/005 , G01N2021/3595
摘要： An imaging device and method are provided. Light from an object is provided as a plurality of sets of light beams to a phase difference array having a plurality of elements. The phase difference array is configured to provide different optical paths for light included within at least some of a plurality of sets of light beams. The light from the phase difference array is received at an imaging element array. The imaging element array includes a plurality of imaging elements. Information obtained from hyperspectral imaging data based on output signals of the imaging element array can be displayed.
摘要翻译：提供了一种成像装置和方法。将来自物体的光作为多组光束被提供给具有多个元件的相位差阵列。相位差阵列被配置为为包括在多组光束中的至少一些光束中的光提供不同的光路。来自相位差阵列的光在成像元件阵列处被接收。成像元件阵列包括多个成像元件。可以显示从基于成像元件阵列的输出信号的高光谱成像数据获得的信息。

4. 发明申请

WO2015158181A1 REAL-TIME BIREFRINGENT IMAGING FOURIER TRANSFORM SPECTROMETER BASED ON DIFFERENTIAL STRUCTURE 审中-公开
标题翻译：基于差异结构的实时双向成像傅立叶变换光谱仪
公开(公告)号：WO2015158181A1
公开(公告)日：2015-10-22
申请号：PCT/CN2015/072779
申请日：2015-02-11
申请人： HARBIN INSTITUTE OF TECHNOLOGY
发明人： JIN, Peng , ZHU, Shuaishuai , ZHANG, Yu , LIN, Jie
IPC分类号： G01J3/447 , G01J3/45
CPC分类号： G01J3/447 , G01J3/0205 , G01J3/0208 , G01J3/0224 , G01J3/0256 , G01J3/2823 , G01J3/453 , G01J3/4531
摘要： A real-time birefringent imaging Fourier transform spectrometer based on differential structure is provided. The invention sets a polarization beam splitter to add an imaging branch. Meanwhile, the invention alters the conventional optical structure to the differential structure by setting another polarization beam splitter. Taking the difference between these two interferogram obtained by two branches of differential structure as the final interferogram and performing the required post-processing calculations produces the spectrum at each pixel. In this invention, common-mode error is intensively restrained due to the differential structure, and 50％ of the optical loss is avoided because of casting off the analyzer; a high spatial resolution, high spectral resolution image is acquired by combining the high spatial resolution, colorful image with the low spatial resolution, high spectral resolution image.
摘要翻译：提供了基于差分结构的实时双折射成像傅里叶变换光谱仪。本发明设置偏振分束器以添加成像分支。同时，本发明通过设置另一个偏振分束器将传统的光学结构改变为差分结构。将由差分结构的两个分支获得的这两个干涉图之间的差作为最终干涉图并执行所需的后处理计算，在每个像素处产生光谱。在本发明中，由于差分结构，共模误差被强烈地抑制，并且由于分析仪的脱落而避免了50％的光损耗; 通过将高空间分辨率，彩色图像与低空间分辨率，高光谱分辨率图像相结合，获得高空间分辨率，高光谱分辨率图像。

5. 发明申请

WO2015090359A1 OPTICAL FIBER SENSOR USED FOR OIL CONDITIONING MONITORING 审中-公开
标题翻译：用于油调节监测的光纤传感器
公开(公告)号：WO2015090359A1
公开(公告)日：2015-06-25
申请号：PCT/EP2013/076791
申请日：2013-12-17
申请人： AKTIEBOLAGET SKF
发明人： LANG, Defeng , TATAR, Florin
IPC分类号： G01J3/42 , G01N33/28 , G01N21/35 , G01N21/85 , G01J3/02
CPC分类号： G01N21/3577 , G01J3/0218 , G01J3/42 , G01J3/45 , G01J3/4531 , G01N21/3554 , G01N21/359 , G01N21/45 , G01N21/8507 , G01N33/2847 , G01N33/2888 , G01N2201/0846
摘要： A detector (1) for oil condition monitoring includes an optical fibre (4) having a first end (6) and a second end (8) having an end face (10). A sensor body (2) has a reflecting surface (16) and a gap (14) in which a sample of the oil (A) may be received, the second end (8) of the optical fibre (4) being embedded in the sensor body (2) and having an end face (10) spaced from the reflecting surface (16) across the gap (14). Light emitted from the optical fibre (4) can pass through the sample of oil (A) and be reflected by the reflecting surface (16) back into the optical fibre (4). By interferometry of a first light signal reflected internally by the end face (10) and a second light signal reflected by the reflecting surface (16), the condition of the oil can be determined.
摘要翻译：用于油状态监测的检测器（1）包括具有第一端（6）和具有端面（10）的第二端（8）的光纤（4）。传感器体（2）具有可以容纳油（A）的样品的反射面（16）和间隙（14），光纤（4）的第二端（8）嵌入传感器主体（2）并且具有跨过间隙（14）与反射表面（16）间隔开的端面（10）。从光纤（4）发射的光可以通过油（A）的样品，并被反射面（16）反射回光纤（4）。通过由端面（10）内部反射的第一光信号和由反射表面（16）反射的第二光信号进行干涉测量，可以确定油的状态。

6. 发明申请

WO2012162809A1 INTERFEROMETERY ON A PLANAR SUBSTRATE 审中-公开
标题翻译：平面基板上的干涉仪
公开(公告)号：WO2012162809A1
公开(公告)日：2012-12-06
申请号：PCT/CA2012/000525
申请日：2012-05-30
申请人： TORNADO MEDICAL SYSTEMS, INC. , NITKOWSKI, Arthur , HAJIAN, Arsen
发明人： NITKOWSKI, Arthur , HAJIAN, Arsen
IPC分类号： G01B9/02 , G01J3/45
CPC分类号： G01J9/02 , A61B5/0066 , G01B9/02004 , G01B9/02044 , G01B9/02051 , G01B9/02091 , G01B2290/40 , G01J3/0218 , G01J3/0259 , G01J3/0291 , G01J3/4531 , G01J3/4532 , G01J2003/451
摘要： An interferometer comprising a planar substrate is provided. The interferometer has a splitter formed on the planar substrate to split a received optical signal, a sample arm formed on the planar substrate to receive a first portion of the split optical signal and direct the first portion toward a sample, a reference arm formed on the planar substrate to receive a second portion of the split optical signal, and a detector element to receive an interferogram generated by interfering the second portion of the split optical signal with a received sample signal generated by the first portion of the split signal interacting with the sample.
摘要翻译：提供了包括平面基板的干涉仪。所述干涉仪具有形成在所述平面基板上以分割接收到的光信号的分离器，形成在所述平面基板上的样本臂，以接收所述分割光信号的第一部分并将所述第一部分引向样本，平面基板以接收分离光信号的第二部分，以及检测器元件，用于接收通过将分离光信号的第二部分与由样本相互作用的分离信号的第一部分产生的接收采样信号而产生的干涉图。

7. 发明申请

WO2011069013A1 FABRY-PEROT FOURIER TRANSFORM SPECTROMETER 审中-公开
标题翻译： FABRY-PEROT FOURIER变换光谱仪
公开(公告)号：WO2011069013A1
公开(公告)日：2011-06-09
申请号：PCT/US2010/058794
申请日：2010-12-02
申请人： UNIVERSITY OF HAWAII , LUCEY, Paul
发明人： LUCEY, Paul
IPC分类号： G01J3/45
CPC分类号： G01J3/26 , G01J3/14 , G01J3/4531
摘要： A spatial Fourier transform spectrometer is disclosed (e.g., 350). The Fourier transform spectrometer includes a Fabry-Perot interferometer (e.g., 320, 420, 520) with first and second optical surfaces (e.g., 454, 458, and 554, 558). The gap (e.g., 462, 562) between the first and second optical surfaces spatially varies in a direction that is orthogonal to the optical axis (e.g., 466, 566, 666) of the Fourier transform spectrometer. The Fabry-Perot interferometer creates an interference pattern from input light. An image of the interference pattern is captured by a detector (e.g., 340, 640), which is communicatively coupled to a processor (e.g., 342). The processor is configured to process the interference pattern image to determine information about the spectral content of the input light.
摘要翻译：公开了一种空间傅里叶变换光谱仪（例如，350）。傅里叶变换光谱仪包括具有第一和第二光学表面（例如，454,458和554,558）的法布里 - 珀罗干涉仪（例如，320,420,520）。第一和第二光学表面之间的间隙（例如，462,562）在与傅里叶变换光谱仪的光轴（例如，466,566,666）正交的方向上空间变化。法布里 - 珀罗干涉仪从输入光线产生干涉图案。干涉图案的图像由通信地耦合到处理器（例如，342）的检测器（例如，340,640）捕获。处理器被配置为处理干涉图案图像以确定关于输入光的光谱内容的信息。

8. 发明申请

WO2010090872A2 CORRELATION INTERFEROMETRIC METHODS, DEVICES AND SYSTEMS FOR LOW COST AND RUGGED SPECTROSCOPY 审中-公开
标题翻译：低成本和镭射光谱的相关干涉方法，装置和系统
公开(公告)号：WO2010090872A2
公开(公告)日：2010-08-12
申请号：PCT/US2010021646
申请日：2010-01-21
申请人： RARE LIGHT INC , MESSERSCHMIDT ROBERT G
发明人： MESSERSCHMIDT ROBERT G
IPC分类号： G01J3/45
CPC分类号： G01J3/4531 , G01J3/457 , G01N21/45 , G01N21/552 , G01N21/65
摘要： A correlation interferometric spectroscopy devices are described that detect the spectral characteristics of a sample wherein device consists of an electromagnetic radiation source for exciting a sample with photons; and a detector adapted to detect an arrival time of a photon at the detector and further adapted to detect a delay between the arrival time of different photons. The device may further consist of an autocorrelator adapted to analyze the between the arrival of photons at the detector. The device may also be used together with other spectral detection and characterizing systems, such as Raman spectroscopy and attenuated total reflectance spectroscopy. Also provided herein are methods, systems, and kits incorporating the correlation interferometric spectroscopy device.
摘要翻译：描述了相关干涉光谱装置，其检测样品的光谱特性，其中装置由用于激发具有光子的样品的电磁辐射源组成; 以及检测器，其适于检测光子在检测器处的到达时间，并且还适于检测不同光子的到达时间之间的延迟。该装置还可以包括适于分析在检测器处的光子到达之间的自相关器。该装置还可以与其他光谱检测和表征系统一起使用，例如拉曼光谱和衰减全反射光谱。本文还提供了结合相关干涉测量光谱装置的方法，系统和试剂盒。

9. 发明申请

WO2017040826A1 APPARATUS, SYSTEMS, AND METHODS FOR TALBOT SPECTROMETERS 审中-公开
标题翻译：仪器，系统和TALBOT光谱仪的方法
公开(公告)号：WO2017040826A1
公开(公告)日：2017-03-09
申请号：PCT/US2016/049960
申请日：2016-09-01
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY , YE, Erika , ATABAKI, Amir H. , HAN, Ningren , RAM, Rajeev Jagga , HERRINGTON, William F.
发明人： YE, Erika , ATABAKI, Amir H. , HAN, Ningren , RAM, Rajeev Jagga , HERRINGTON, William F.
IPC分类号： G01B9/02
CPC分类号： G01J3/453 , G01J3/0259 , G01J3/4531 , G01J3/4532
摘要： A non-paraxial Talbot spectrometer includes a transmission grating to receive incident light. The grating period of the transmission grating is comparable to the wavelength of interest so as to allow the Talbot spectrometer to operate outside the paraxial limit. Light transmitted through the transmission grating forms periodic Talbot images. A tilted detector is employed to simultaneously sample the Talbot images at various distances along a direction perpendicular to the grating. Spectral information of the incident light can be calculated by taking Fourier transform of the measured Talbot images or by comparing the measured Talbot images with a library of intensity patterns acquired with light sources having known wavelengths.
摘要翻译：非近轴Talbot光谱仪包括用于接收入射光的透射光栅。传输光栅的光栅周期与感兴趣的波长相当，以便允许Talbot光谱仪在傍轴极限外运行。通过透射光栅透射的光形成周期性的Talbot图像。采用倾斜检测器同时沿垂直于光栅的方向以不同距离对Talbot图像进行采样。入射光的光谱信息可以通过对所测量的Talbot图像进行傅立叶变换或通过将测量的Talbot图像与用已知波长的光源采集的强度图案的文库进行比较来计算。

10. 发明申请

WO2016205565A1 GAS VISUALIZING METHODS AND SYSTEMS WITH BIREFRINGENT POLARIZATION INTERFEROMETER 审中-公开
标题翻译：气体可视化方法和系统与双向偏振干涉仪
公开(公告)号：WO2016205565A1
公开(公告)日：2016-12-22
申请号：PCT/US2016/037933
申请日：2016-06-16
申请人： FLIR SYSTEMS AB , FLIR SYSTEMS, INC.
发明人： SANDSTEN, Jonas , SJUNNEBO, Joakim
IPC分类号： G01J3/453 , G01J3/28 , G01J9/02 , G01J3/02
CPC分类号： G01J3/2823 , G01B9/02001 , G01B9/02041 , G01B9/02089 , G01J3/0208 , G01J3/4531 , G01J9/0215 , G01J2003/2826
摘要： Systems and methods disclosed herein provide for gas imaging. A gas imaging system comprises a lenslet array configured to receive thermal radiation from a scene and transmit a plurality of substantially identical sub-images of the thermal radiation; a birefringent polarization interferometer configured to generate an optical path difference for each ray of the plurality of sub-images based on a respective position of each ray entering the BPI, the optical path differences combining to form an interference fringe pattern; and an infrared focal plane array configured to capture a thermal image of the plurality of sub-images modulated by the interference fringe pattern due to the optical path differences through the BPI. The captured thermal image may represent a plurality of interferogram sample points of the thermal radiation from the scene, and may be used to construct a plurality of hyperspectral images of the thermal radiation from the scene.
摘要翻译：本文公开的系统和方法提供气体成像。一种气体成像系统，包括配置成接收来自场景的热辐射并透射多个基本相同的所述热辐射的子图像的小透镜阵列; 双折射偏振干涉仪，其被配置为基于进入所述BPI的每个射线的相应位置产生所述多个子图像中的每个射线的光程差，所述光路差组合以形成干涉条纹图案; 以及红外焦平面阵列，被配置为捕获由于通过BPI的光路差异而被干涉条纹图案调制的多个子图像的热图像。捕获的热图像可以表示来自场景的热辐射的多个干涉图样本点，并且可以用于构建来自场景的热辐射的多个高光谱图像。

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