公开(公告)号：US09029775B2

公开(公告)日：2015-05-12

申请号：US13565021

申请日：2012-08-02

Applicant: Joseph R. Demers ,  Ronald T. Logan, Jr.

Inventor： Joseph R. Demers ,  Ronald T. Logan, Jr.

IPC: G01N21/35 ,  G01J3/10 ,  G01J3/42 ,  G01J3/453 ,  G01N21/3581 ,  G01N21/39 ,  G01N21/3586

CPC classification number: G01J3/10 ,  G01J3/42 ,  G01J3/4531 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/39

Abstract: An apparatus for analyzing, identifying or imaging an target including first and second laser beams coupled to a pair of photoconductive switches to produce CW signals in one or more bands in a range of frequencies greater than 100 GHz focused on, and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral heterodyne process to generate an electrical signal representative of some characteristics of the target. The lasers are tuned to different frequencies and a phase modulator in the path of one laser beam allows the constructive or destructive interference of the signals on the detector as the laser beams are swept in frequency to be adjusted to achieve greater resolution in one or more selected frequency bands.

Abstract translation: 一种用于分析，识别或成像目标的装置，包括耦合到一对光电导开关的第一和第二激光束，以在大于100GHz的频率的范围内的一个或多个频带中产生CW信号，该信号聚焦并透过或反射 目标; 以及检测器，用于从从目标接收的信号中获取光谱信息，并使用多光谱外差处理产生表示目标的某些特性的电信号。 将激光器调谐到不同的频率，并且在一个激光束的路径中的相位调制器允许在检测器上的信号的建构性或相消干涉，因为激光束被扫频以被调整以在一个或多个选定的 频带。

公开(公告)号：US20150029504A1

公开(公告)日：2015-01-29

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: G01J3/44 ,  G01J3/18

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：US08829440B2

公开(公告)日：2014-09-09

申请号：US13831438

申请日：2013-03-14

Applicant: Ronald T. Logan, Jr. ,  Joseph R. Demers

Inventor： Ronald T. Logan, Jr. ,  Joseph R. Demers

IPC: G01N21/35 ,  A61B5/05

CPC classification number: G01J3/427 ,  A61B5/0507 ,  G01J3/10 ,  G01J3/42 ,  G01J3/4531 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/39

Abstract: An apparatus for analyzing, identifying or imaging an target including first and second laser beams coupled to a pair of photoconductive switches to produce CW signals in one or more bands in a range of frequencies greater than 100 GHz focused on and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral heterodyne process to generate an electrical signal representative of some characteristics of the target. The lasers are tuned to different frequencies and a frequency shifter in the path of one laser beam allows the terahertz beam to be finely adjusted in one or more selected frequency bands.

Abstract translation: 一种用于分析，识别或成像目标的装置，包括耦合到一对光电导开关的第一和第二激光束，以在大于100GHz的频率的范围内的一个或多个频带中产生CW信号，该信号集中于并经由 目标; 以及检测器，用于从从目标接收的信号中获取光谱信息，并使用多光谱外差处理产生表示目标的某些特性的电信号。 将激光器调谐到不同的频率，并且在一个激光束的路径中的频移器允许在一个或多个所选频带中微调太赫兹波束。

公开(公告)号：US08792102B2

公开(公告)日：2014-07-29

申请号：US12914622

申请日：2010-10-28

Applicant: Abhijit Vishwas Patil ,  Sandip Maity ,  Veera Venkata Lakshmi Rajesh Langoju ,  Anusha Rammohan ,  Sameer Dinkar Vartak ,  Umakant Damodar Rapol

Inventor： Abhijit Vishwas Patil ,  Sandip Maity ,  Veera Venkata Lakshmi Rajesh Langoju ,  Anusha Rammohan ,  Sameer Dinkar Vartak ,  Umakant Damodar Rapol

IPC: G01J3/45 ,  G01N21/47 ,  G01N21/25 ,  G01N21/45 ,  B01L3/00 ,  G01N21/03 ,  G01N21/05 ,  G01N21/55

CPC classification number: G01N21/253 ,  B01L3/5027 ,  B01L3/5085 ,  B01L2300/0636 ,  B01L2300/0829 ,  B01L2300/089 ,  G01J3/021 ,  G01J3/1804 ,  G01J3/4531 ,  G01J2003/4534 ,  G01N21/05 ,  G01N21/45 ,  G01N21/55 ,  G01N21/553 ,  G01N21/554 ,  G01N2021/0346

Abstract: A detection system for a two-dimensional (2D) array is provided. The detection system comprises an electromagnetic radiation source, a phase difference generator, a detection surface having a plurality of sample fields that can receive samples, and an imaging spectrometer configured to discriminate between two or more spatially separated points.

Abstract translation: 提供了一种二维（2D）阵列的检测系统。 检测系统包括电磁辐射源，相位差发生器，具有可接收样本的多个采样场的检测表面，以及被配置为区分两个或更多个空间分离点的成像光谱仪。

公开(公告)号：US20130215406A1

公开(公告)日：2013-08-22

申请号：US13881546

申请日：2011-10-25

Applicant: Sascha Pierre Heussler ,  Herbert O. Moser

Inventor： Sascha Pierre Heussler ,  Herbert O. Moser

IPC: G03F7/20 ,  G02B5/18

CPC classification number: G02B5/18 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/4531 ,  G03F7/0002 ,  G03F7/0005 ,  G03F7/0017 ,  G03F7/0037 ,  G03F7/2014 ,  G03F7/203 ,  G03F7/213 ,  G03F7/70058 ,  G03F7/70416 ,  G03F7/70466

Abstract: A lithography method and apparatus is disclosed herein. In a described embodiment, the method comprises (i) providing a first mask having an exposure pattern for forming a three dimensional structure; (ii) exposing the first mask to radiation to form the exposure pattern on a radiation-sensitive resist; the exposure pattern defined by irradiated areas and non-irradiated areas of the resist; (ii) providing a second mask; and (iii) during exposure, changing relative positions between the first mask and the second mask to shield selected portions of the irradiated areas from radiation to enable varying depth profiles to be created in the three dimensional structure.

Abstract translation: 本文公开了一种光刻方法和装置。 在所描述的实施例中，该方法包括（i）提供具有用于形成三维结构的曝光图案的第一掩模; （ii）将第一掩模暴露于辐射以在辐射敏感抗蚀剂上形成曝光图案; 由抗蚀剂的照射区域和未照射区域限定的曝光图案; （ii）提供第二掩模; 和（iii）在曝光期间，改变第一掩模和第二掩模之间的相对位置以屏蔽被照射区域的所选部分不受辐射，以使能够在三维结构中产生变化的深度分布。

公开(公告)号：US08497993B2

公开(公告)日：2013-07-30

申请号：US12852492

申请日：2010-08-08

Applicant: Christophe Buisset ,  Denis Simeoni ,  Patrick Astruc ,  Cyril Degrelle

Inventor： Christophe Buisset ,  Denis Simeoni ,  Patrick Astruc ,  Cyril Degrelle

IPC: G01J3/45

CPC classification number: G01J3/45 ,  G01J3/4531

Abstract: A static interferometer comprises an entrance pupil, a splitter plate, a first mirror and a second mirror which are arranged in such a way that light beams originating from a collimated source are divided on the splitter plate, reflect on each of the mirrors and recombine while interfering at the output of the interferometer. The interferometer comprises a prismatic plate of index n comprising a variable thickness ej, the first beam passing through the prismatic plate before reflecting on a reflecting surface of the first mirror, the reflecting surface comprising a plurality of zones, each zone j being situated at a mean distance Δj from a reference plane. The reference plane being perpendicular to an optical axis and corresponding to a position of a plane mirror for which the optical path difference between the two interfering reflected beams is zero, each thickness ej being substantially equal to Δj·n/(n−1).

Abstract translation: 静态干涉仪包括入射光瞳，分离板，第一反射镜和第二反射镜，这些方式使得源自准直光源的光束在分离板上分开，在每个反射镜上反射并重新组合，同时 干扰了干涉仪的输出。 干涉仪包括索引n的棱镜板，其包括可变厚度ej，第一光束在第一反射镜的反射表面上反射之前通过棱镜板，反射表面包括多个区域，每个区域j位于 距离参考平面的距离Deltaj。 参考平面垂直于光轴并对应于两个干涉反射光束之间的光程差为零的平面镜的位置，每个厚度ej基本上等于Deltaj·n /（n-1）。

公开(公告)号：US08446458B2

公开(公告)日：2013-05-21

申请号：US12744690

申请日：2008-12-01

Applicant: Hamed Hamid Muhammed

Inventor： Hamed Hamid Muhammed

IPC: G01J3/26 ,  G01J3/45 ,  G01J3/40

CPC classification number: G01J3/4532 ,  G01J3/02 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/2823 ,  G01J3/4531

Abstract: A miniaturized Holographic Fourier transform imaging spectrometer HFTIS, made from simple all-reflective components and with no moving parts, is provided. This HFTIS includes an all-reflective two beam interferometer, which provides two interfering beams; a two-dimensional detector array to detect the interference pattern created by the beams; a computing machine for correcting the distortions in the pattern and calculating the spectrum from the corrected interferogram. The same principle can be used to build spot spectrometers, line-scan imaging spectrometers (also called array spectrometers or line-scan hyperspectral cameras) as well as two-dimensional instantaneous imaging spectrometers (also called staring hyperspectral cameras). In all variants of HFTIS that can be built using this invention, the wave-signal collecting element can also be built of all-reflective components. Digital correction can be utilized to straighten the interference fringes and to compensate for the impact of used lenses and other refractive components, to produce correct spectra after Fourier Transformation.

Abstract translation: 提供了由简单的全反射组件制成并且没有移动部件的小型化全息傅里叶变换成像光谱仪HFTIS。 该HFTIS包括全反射双光束干涉仪，其提供两个干涉光束; 二维检测器阵列，用于检测波束产生的干涉图; 用于校正图案中的失真并根据校正的干涉图计算光谱的计算机。 同样的原理可用于构建点光谱仪，线扫描成像光谱仪（也称为阵列光谱仪或线扫描超光谱相机）以及二维瞬时成像光谱仪（也称为高光谱相机）。 在可以使用本发明构建的HFTIS的所有变型中，波信号收集元件也可以由全反射部件构成。 可以利用数字校正来矫正干涉条纹并补偿使用过的透镜和其它折射分量的影响，从而在傅里叶变换后产生正确的光谱。

公开(公告)号：US20130027711A1

公开(公告)日：2013-01-31

申请号：US13194713

申请日：2011-07-29

Applicant: Arsen R. HAJIAN ,  Bradford B. BEHR ,  Jeffrey T. MEADE ,  Andrew T. CENKO

Inventor： Arsen R. HAJIAN ,  Bradford B. BEHR ,  Jeffrey T. MEADE ,  Andrew T. CENKO

IPC: G01J3/45

CPC classification number: G01J3/4531 ,  G01B9/02028 ,  G01B9/02044 ,  G01B9/02081 ,  G01B9/02091 ,  G01J3/0294

Abstract: An optical coherence tomography (OCT) system comprising: a splitter configured to receive and split an optical source beam generating a reference beam and a sample beam, the sample beam directed at a sample and interacting with the sample to generate a return beam; a delay module configured to receive and introduce an optical delay in the reference beam, to generate a delayed reflected beam configured to interfere with the return beam to generate an interferogram; a spatial filter system capable of filtering randomly scattered light from at least one of the return beam or the interferogram; and a detector array to receive the interferogram for spatial and spectral analysis.

Abstract translation: 一种光学相干断层摄影（OCT）系统，包括：分配器，被配置为接收和分割产生参考光束和样本光束的光源束，所述样本光束指向样本并与样本相互作用以产生返回光束; 延迟模块，被配置为接收和引入参考光束中的光学延迟，以产生被配置为干扰所述返回光束以产生干涉图的延迟反射光束; 空间滤波器系统，其能够从至少一个返回光束或干涉图中随机散射光; 以及用于接收用于空间和光谱分析的干涉图的检测器阵列。

公开(公告)号：US20120326039A1

公开(公告)日：2012-12-27

申请号：US13565021

申请日：2012-08-02

Applicant: Joseph R. Demers ,  Ronald T. Logan, JR.

Inventor： Joseph R. Demers ,  Ronald T. Logan, JR.

IPC: G01J3/28 ,  G01J3/42 ,  G01J3/45

CPC classification number: G01J3/10 ,  G01J3/42 ,  G01J3/4531 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/39

Abstract: An apparatus for analyzing, identifying or imaging an target including first and second laser beams coupled to a pair of photoconductive switches to produce CW signals in one or more bands in a range of frequencies greater than 100 GHz focused on, and transmitted through or reflected from the target; and a detector for acquiring spectral information from signals received from the target and using a multi-spectral heterodyne process to generate an electrical signal representative of some characteristics of the target. The lasers are tuned to different frequencies and a phase modulator in the path of one laser beam allows the constructive or destructive interference of the signals on the detector as the laser beams are swept in frequency to be adjusted to achieve greater resolution in one or more selected frequency bands.

Abstract translation: 一种用于分析，识别或成像目标的装置，包括耦合到一对光电导开关的第一和第二激光束，以在大于100GHz的频率的范围内的一个或多个频带中产生CW信号，该信号聚焦并透过或反射 目标; 以及检测器，用于从从目标接收的信号中获取光谱信息，并使用多光谱外差处理产生表示目标的某些特性的电信号。 将激光器调谐到不同的频率，并且在一个激光束的路径中的相位调制器允许在检测器上的信号的建构性或相消干涉，因为激光束被扫频以被调整以在一个或多个选定的 频带。

公开(公告)号：US20120281223A1

公开(公告)日：2012-11-08

申请号：US13522665

申请日：2011-01-14

Applicant: Hugh Mortimer

Inventor： Hugh Mortimer

IPC: G01B9/02 ,  G01J3/45

CPC classification number: G01J3/02 ,  G01B9/0209 ,  G01J3/0208 ,  G01J3/4531 ,  G01J3/4532

Abstract: An interferometer is disclosed, such as may be incorporated into a hand-held spectrometer. The interferometer comprises enclosed path optics and a detector, the enclosed path optics comprise at least two reflecting elements and a beamsplitter, the beamsplitter is arranged to divide an input beam into first and second beams. The enclosed path optics are arranged to direct the first and second beams in opposite directions around paths enclosing an area and to output the first and second beams towards the detector. The enclosed path optics also focus the first and second beams onto the detector. The detector is arranged to detect a pattern produced by interference of the first and second beams. In a preferred embodiment the two reflecting elements are a pair of concave mirrors, and the enclosed path optics enclose a triangular area. The use of concave mirrors for both reflection and focussing provides the interferometer with compactness.

Abstract translation: 公开了干涉仪，例如可以并入到手持式光谱仪中。 干涉仪包括封闭路径光学器件和检测器，封闭路径光学器件包括至少两个反射元件和分束器，分束器被布置成将输入光束分成第一和第二光束。 封闭路径光学器件被布置成围绕围绕一个区域的路径沿相反的方向引导第一和第二光束，并且将第一和第二光束朝向检测器输出。 封闭路径光学器件还将第一和第二光束聚焦到检测器上。 检测器被布置成检测由第一和第二光束的干涉产生的图案。 在优选实施例中，两个反射元件是一对凹面镜，并且封闭路径光学器件包围三角形区域。 使用凹面反射镜进行反射和聚焦为干涉仪提供了紧凑性。