公开(公告)号：US20080042071A1

公开(公告)日：2008-02-21

申请号：US11800026

申请日：2007-05-03

Applicant: Dale Harrison

Inventor： Dale Harrison

IPC: G01N21/33

CPC classification number: G01J3/2803 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0232 ,  G01J3/027 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/08 ,  G01J3/10 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01J3/42 ,  G01J3/4531 ,  G01N21/211 ,  G01N21/274 ,  G01N21/33 ,  G01N21/47 ,  G01N21/55 ,  G01N21/9501 ,  G01N2021/335

Abstract: A spectroscopy system is provided which is optimized for operation in the VUV region and capable of performing well in the DUV-NIR region. Additionally, the system incorporates an optical module which presents selectable sources and detectors optimized for use in the VUV and DUV-NIR. As well, the optical module provides common delivery and collection optics to enable measurements in both spectral regions to be collected using similar spot properties. The module also provides a means of quickly referencing measured data so as to ensure that highly repeatable results are achieved. The module further provides a controlled environment between the VUV source, sample chamber and VUV detector which acts to limit in a repeatable manner the absorption of VUV photons. The use of broad band data sets which encompass VUV wavelengths, in addition to the DUV-NIR wavelengths enables a greater variety of materials to be meaningfully characterized. Array based detection instrumentation may be exploited to permit the simultaneous collection of larger wavelength regions.

Abstract translation: 提供了一种光谱系统，其被优化用于在VUV区域中的操作并且能够在DUV-NIR区域中表现良好。 此外，该系统还包含一个光学模块，该模块提供可用于VUV和DUV-NIR中优化的可选择的源和检测器。 同样，光学模块提供通用的传送和收集光学器件，以使得能够使用类似的光点特性来收集两个光谱区域中的测量。 该模块还提供了快速参考测量数据的方法，以确保实现高度可重复的结果。 该模块还在VUV源，样品室和VUV检测器之间提供受控的环境，其作用是以可重复的方式限制VUV光子的吸收。 除了DUV-NIR波长之外，使用包含VUV波长的宽带数据集使得可以有意义地表征更多种类的材料。 可以利用基于阵列的检测仪器来允许同时收集更大的波长区域。

公开(公告)号：US07317535B2

公开(公告)日：2008-01-08

申请号：US11221925

申请日：2005-09-09

Applicant: Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

Inventor： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

IPC: G01B9/02

CPC classification number: G01J3/02 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/14 ,  G01J3/18 ,  G01J3/4531 ,  G01J3/4532 ,  G02B6/12019

Abstract: A spectroscopic method and system for the spectral analysis of an optical signal directed to a wavelength dispersive component having two interleaved dispersive devices. For a single wavelength, the optical signal exiting the interleaved dispersive devices includes two wavefronts generally disposed at an angle to one another and producing an interference pattern. The interference pattern is detected and subsequently analyzed via a Fourier transform to produce the optical spectrum of the input beam. The method and system are applicable in a planar waveguide environment, in reflection and transmission geometries.

Abstract translation: 用于对具有两个交错色散装置的波长色散分量的光信号进行光谱分析的光谱方法和系统。 对于单个波长，离开交错色散装置的光信号包括通常以彼此成角度地设置并产生干涉图案的两个波前。 通过傅立叶变换来检测并随后分析干涉图案以产生输入光束的光谱。 该方法和系统适用于平面波导环境，反射和透射几何形状。

公开(公告)号：US20070182966A1

公开(公告)日：2007-08-09

申请号：US11447631

申请日：2006-06-06

Applicant: Scott T. Sanders ,  Joachim W. Walewski

Inventor： Scott T. Sanders ,  Joachim W. Walewski

IPC: G01B9/02

CPC classification number: G01J3/42 ,  G01J3/4531 ,  G01J9/04

Abstract: An apparatus and method are provided for conducting heterodyne frequency-comb spectroscopy. The apparatus includes a first and second frequency-comb generators for generating corresponding first and second continuous wave laser beams, respectively. The first beam defines a spectrum of light having a plurality of modes spaced by a first frequency. The second beam defines a spectrum of light having a plurality of modes spaced by a second frequency that is greater than the first frequency. The first and second beams are combined and the optical power of the combined beam is monitored with a data acquisition system to record a time trace. The recorded time trace is Fourier transformed such that each of spectrums of the first and second beams will exhibit a low-frequency comb. By superimposing the two combs, a beat frequency in a low-frequency region is assigned to an optical frequency.

Abstract translation: 提供了一种用于进行外差频梳功能的装置和方法。 该装置包括分别产生相应的第一和第二连续波激光束的第一和第二频率梳发生器。 第一光束限定具有以第一频率间隔的多个模式的光谱。 第二光束限定具有多个模式的光谱，该多个模式间隔有大于第一频率的第二频率。 组合第一和第二光束并且用数据采集系统监视组合光束的光功率以记录时间轨迹。 记录的时间轨迹被傅立叶变换，使得第一和第二光束的每个光谱将呈现低频梳。 通过叠加两个梳子，将低频区域中的拍频分配给光频率。

公开(公告)号：US20070159634A1

公开(公告)日：2007-07-12

申请号：US11561745

申请日：2006-11-20

Applicant: Christoph Englert

Inventor： Christoph Englert

IPC: G01B9/02

CPC classification number: G01J3/4531 ,  G01J3/0259 ,  G01J3/12 ,  G01J3/4532

Abstract: The present invention provides an economically feasible robust spatial heterodyne spectroscopy (SHS) interferometer. A first type prior art monolithic SHS interferometer is exceedingly expensive, whereas a second type of prior art SHS interferometer is extremely large and has many components, which need to be tuned. The present invention is much less expensive than the first type of prior art SHS interferometer and is much smaller that the second type of prior art SHS interferometer.

Abstract translation: 本发明提供了一种经济可行的鲁棒空间外差光谱（SHS）干涉仪。 第一类型的现有技术的单片SHS干涉仪是非常昂贵的，而第二类型的现有技术的SHS干涉仪是非常大的并且具有许多需要调谐的部件。 本发明比第一类型的现有技术的SHS干涉仪便宜得多，并且比第二种现有技术的SHS干涉仪小得多。

公开(公告)号：US20070077595A1

公开(公告)日：2007-04-05

申请号：US11239100

申请日：2005-09-30

Applicant: Tae-Woong Koo ,  Richard Jones ,  Andrew Berlin

Inventor： Tae-Woong Koo ,  Richard Jones ,  Andrew Berlin

IPC: G01N33/53 ,  G01J3/45 ,  G01B9/02

CPC classification number: G01J3/02 ,  B01J2219/00572 ,  B01J2219/00659 ,  B01J2219/00704 ,  B82Y30/00 ,  G01J3/0218 ,  G01J3/0259 ,  G01J3/44 ,  G01J3/4531 ,  G01J3/4532 ,  G01N21/658 ,  G02B6/12007

Abstract: One embodiment relates to an analyzer having an interferometer, a detector and a microprocessor, wherein the analyzer does not contain a spectrometer having a dispersive grating, the interferometer is to create a phase shift in an original spectrum of electromagnetic radiation emitted from a sample and Fourier transform the original spectrum to a Fourier transform spectrum, the detector is to detect a characteristic of the Fourier transform spectrum, and the microprocessor comprises software or a hardware to inverse transform the Fourier transform spectrum and reproduce the original spectrum. Another embodiment relates to a Raman analyzer having an interferometer, wherein the Raman analyzer contains no dispersive grating or moving parts and has an ability to analyze a Raman signal. The embodiments of the invention could be used for analyzing a sample by striking a laser to the sample and examining the spectrum of the emitted electromagnetic radiation from the sample.

Abstract translation: 一个实施例涉及一种具有干涉仪，检测器和微处理器的分析仪，其中分析仪不包含具有分散光栅的光谱仪，干涉仪将在从样品和傅里叶发射的电磁辐射的原始光谱中产生相移 将原始频谱转换为傅里叶变换频谱，检测器检测傅里叶变换频谱的特性，微处理器包括软件或硬件，对傅立叶变换频谱进行逆变换，再现原始频谱。 另一个实施方案涉及具有干涉仪的拉曼分析仪，其中拉曼分析仪不含分散光栅或运动部件，并且具有分析拉曼信号的能力。 本发明的实施例可以用于通过将激光撞击到样品并检查来自样品的发射的电磁辐射的光谱来分析样品。

公开(公告)号：US20040114148A1

公开(公告)日：2004-06-17

申请号：US10720763

申请日：2003-11-25

Applicant: Cornell Research Foundation, Inc.

Inventor： Nikolay I. Agladze ,  Albert J. Sievers

IPC: G01B009/02

CPC classification number: G01J3/4532 ,  G01J3/0259 ,  G01J3/4531

Abstract: A digitally aberration corrected miniaturized holographic Fourier transform spectrometer (HFTS) made from simple optical components and with no moving parts is provided. The disclosed digitally aberration corrected HFTS is comprised of a two beam interferometer, which provides two interfering beams; a 2D array detector to detect the interference pattern created by the beams; a computer for correcting effects of aberrations in the pattern and calculating the spectrum from thus corrected interferogram.

Abstract translation: 提供由简单的光学部件制成并且没有移动部件的数字像差校正的小型化全息傅立叶变换光谱仪（HFTS）。 所公开的数字像差校正HFTS由提供两个干涉光束的双光束干涉仪组成; 用于检测由所述光束产生的干涉图案的2D阵列检测器; 用于校正图案中的像差效应并从这样校正的干涉图计算光谱的计算机。

公开(公告)号：US4779984A

公开(公告)日：1988-10-25

申请号：US17941

申请日：1987-02-24

Applicant: Lacy G. Cook

Inventor： Lacy G. Cook

IPC: G01J3/453 ,  G01J9/02 ,  G02B6/34 ,  G01J3/45

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0259 ,  G01J3/0294 ,  G01J3/4531 ,  G02B6/12007 ,  G02B6/2931 ,  G02B6/29358 ,  G02B6/4215

Abstract: An integrated optic holographic spectrometer (10) for analyzing electromagnetic radiation from a source (12) is disclosed. The holographic spectrometer (10) comprises a substrate (18) having aperture (20) for restricting the receipt of electromagnetic radiation. The spectrometer (10) also includes two optical waveguides (22, 24) for dividing the electromagnetic radiation received through the aperture (20) into at least a first and second portions. A geodesic lens (26) is provided for collimating the first and second portions of the electromagnetic radiation. Finally, the spectrometer (10) includes a linear detector array (28) optically communicating with the geodesic lens (26) to provide an output responsive to the interference between the first and second portions of the electromagnetic radiation received through the aperture (20).

Abstract translation: 公开了一种用于分析来自源（12）的电磁辐射的集成光学全息光谱仪（10）。 全息光谱仪（10）包括具有用于限制电磁辐射的接收的孔（20）的衬底（18）。 光谱仪（10）还包括用于将通过孔（20）接收的电磁辐射分成至少第一和第二部分的两个光波导（22,24）。 设置测地镜（26）以准直电磁辐射的第一和第二部分。 最后，光谱仪（10）包括与测距透镜（26）光学连通的线性检测器阵列（28），以响应于通过孔（20）接收的电磁辐射的第一和第二部分之间的干涉而提供输出。

公开(公告)号：US20190219445A1

公开(公告)日：2019-07-18

申请号：US16317941

申请日：2017-07-05

Applicant: MICOS ENGINEERING GMBH ,  EMPA EIDGENÖSSISCHE MATERIALPRÜFUNGS- UND FORSCHUNGSANSTALT

Inventor： Mohammadreza MADI ,  Edoardo ALBERTI ,  Ivan SHORUBALKO

IPC: G01J3/02 ,  G01J3/453 ,  G01J3/28 ,  G02B6/42

CPC classification number: G01J3/0259 ,  G01J3/02 ,  G01J3/2803 ,  G01J3/4531 ,  G02B6/4291

Abstract: A waveguide spectrometer includes at least one substrate layer with at least one waveguide. Each waveguide extends from an inlet face proceeding partly through the substrate layer to a reflecting element. A multiplicity of photo detectors is arranged on a front side of the substrate layer, while the photo detectors are electrically connected to an electronic read out system. The spectrometer can be made lightweight and easier to produce by forming the waveguides as surface waveguides, each showing a longitudinal opening with a width to the front side of the substrate layer between the inlet face and the reflecting element. The photo detectors are in print distributed at the front side on top of the substrate layer at least partly overlapping the longitudinal opening along an overall length of sampled region and the electrical connection of the photo detectors with the electronic read out system is achieved by a multiplicity of printed electrical conductors.

公开(公告)号：US20190162999A1

公开(公告)日：2019-05-30

申请号：US15827204

申请日：2017-11-30

Applicant: Palo Alto Research Center Incorporated

Inventor： Alex Hegyi

IPC: G02F1/139 ,  G02F1/1335 ,  G02F1/13 ,  G02B27/28 ,  G02B5/30 ,  G01J4/04

CPC classification number: G02F1/1395 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/447 ,  G01J3/45 ,  G01J3/4531 ,  G01J4/04 ,  G01J2003/2866 ,  G02B5/3083 ,  G02B27/286 ,  G02F1/1326 ,  G02F1/13306 ,  G02F1/13318 ,  G02F1/133528 ,  G02F2201/58 ,  G02F2203/62

Abstract: A liquid-crystal variable retarder has first and second liquid-crystal cells with respective first and second thicknesses, the second thickness being less than the first thickness. A feedback sensor provides a feedback signal indicative of a retardance of the liquid-crystal variable retarder. A controller is coupled to the feedback sensor and the first and second liquid-crystal cells. The controller is operable to apply a first signal to the first liquid-crystal cell based on a target retardance trajectory and a feedforward control model. The controller applies a second signal to the second liquid-crystal cell based on the feedback signal and the target retardance trajectory.

公开(公告)号：US20190056270A1

公开(公告)日：2019-02-21

申请号：US15768548

申请日：2017-03-02

Applicant: CI SYSTEMS (ISRAEL) LTD.

Inventor： Dario CABIB

IPC: G01J3/45 ,  G01J3/427 ,  G01J3/433

CPC classification number: G01J3/45 ,  G01J3/0205 ,  G01J3/26 ,  G01J3/427 ,  G01J3/4338 ,  G01J3/4531 ,  G01J3/4532 ,  G01J2003/425 ,  G02B27/50

Abstract: An interference fringe pattern generator forms an interference fringe pattern from the light rays diffused from a region of an object positioned against a background. A planar array of detector pixels is arranged to capture an image of the interference fringe pattern. A storage medium records information indicative of intensity values of the image of the interference fringe pattern captured by a selected group of pixels of the planar array of detector pixels. The information is recorded as a function of the optical path difference values traversed by the diffused light rays through the interference fringe pattern generator for each of the pixels in the selected group of pixels. A processor determines the spectral characteristics of the object based on the information indicative of the intensity values recorded by the storage medium and the optical path difference values traversed by the diffused light rays.