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    UNIVERSAL WAVELENGTH CALIBRATION SOURCE USING A STABLE MONOLITHIC INTERFEROMETER
    131.
    发明申请
    UNIVERSAL WAVELENGTH CALIBRATION SOURCE USING A STABLE MONOLITHIC INTERFEROMETER 有权
    通用稳态干涉仪的通用波长校准源

    公开(公告)号：US20110032529A1

    公开(公告)日：2011-02-10

    申请号：US12849046

    申请日：2010-08-03

    Applicant: Xiaoke WAN ,  Jian Ge

    Inventor： Xiaoke WAN ,  Jian Ge

    IPC: G01J3/45 ,  G01J1/10

    CPC classification number: G01J3/02 ,  G01B9/02051 ,  G01J3/0259 ,  G01J3/28 ,  G01J3/45 ,  G01J3/4531 ,  G01J3/4532 ,  G01J2003/2866

    Abstract: Calibration of an arbitrary spectrometer can use a stable monolithic interferometer as a wavelength calibration standard. Light from a polychromatic light source is input to the monolithic interferometer where it undergoes interference based on the optical path difference (OPD) of the interferometer. The resulting wavelength-modulated output beam is analyzed by a reference spectrometer to generate reference data. The output beam from the interferometer can be provided to an arbitrary spectral instrument. Wavelength calibration of the arbitrary spectral instrument may then be performed based on a comparison of the spectral instrument output with the reference data. By appropriate choice of materials for the monolithic interferometer, a highly stable structure can be fabricated that has a wide field and/or is thermally compensated. Because the interferometer is stable, the one-time generated reference data can be used over an extended period of time without re-characterization.

    Abstract translation: 任意光谱仪的校准可以使用稳定的单片干涉仪作为波长校准标准。 来自多色光源的光被输入到单片干涉仪，其中它基于干涉仪的光程差（OPD）而受到干扰。 所得到的波长调制输出光束由参考光谱仪分析以产生参考数据。 来自干涉仪的输出光束可以提供给任意的光谱仪器。 然后可以基于光谱仪器输出与参考数据的比较来执行任意光谱仪器的波长校准。 通过适当选择用于单片干涉仪的材料，可以制造具有宽场和/或热补偿的高度稳定的结构。 因为干涉仪是稳定的，所以一次性生成的参考数据可以在延长的时间段内被使用，而无需重新表征。

    BROAD BAND REFERENCING REFLECTOMETER
    132.
    发明申请
    BROAD BAND REFERENCING REFLECTOMETER 有权
    宽带参考反射计

    公开(公告)号：US20100328648A1

    公开(公告)日：2010-12-30

    申请号：US12876242

    申请日：2010-09-07

    Applicant: Dale A. Harrison

    Inventor： Dale A. Harrison

    IPC: G01N21/55 ,  G01J3/00

    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。

    Terahertz frequency domain spectrometer with controllable phase shift
    135.
    发明授权
    Terahertz frequency domain spectrometer with controllable phase shift 有权
    太赫兹频域光谱仪具有可控相移

    公开(公告)号：US07781736B2

    公开(公告)日：2010-08-24

    申请号：US12465219

    申请日：2009-05-13

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

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

    IPC: G01N21/21 ,  G01N21/25 ,  G01J5/02

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

    Abstract: An apparatus for analyzing, identifying or imaging an target including an integrated dual laser module coupled to a pair of photoconductive switches to produce cw signals in the range of frequencies from 100 GHz to over 2 THz 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 homodyne process to generate an electrical signal representative of some characteristics of the target with resolution less than 250 MHz. The photoconductive switches are activated by laser beams from the dual laser module. The lasers in the module are tuned to different frequencies and a phase shifter in the path of one beam allows the beams to have an adjustable phase difference.

    Abstract translation: 一种用于分析，识别或成像目标的装置，所述目标包括耦合到一对光电导开关的集成双激光模块，以产生聚焦在目标上并从所述目标传送或反射的从100GHz到超过2Hz的频率范围内的cw信号; 以及检测器，用于从从目标接收的信号中获取光谱信息，并使用多光谱零差处理来产生表示具有小于250MHz的分辨率的目标的某些特性的电信号。 光导开关由来自双激光模块的激光束激活。 模块中的激光器被调谐到不同的频率，并且在一个光束的路径中的移相器允许光束具有可调节的相位差。

    Broad band referencing reflectometer
    136.
    发明申请
    Broad band referencing reflectometer 有权
    宽带参考反射计

    公开(公告)号：US20100051822A1

    公开(公告)日：2010-03-04

    申请号：US12590151

    申请日：2009-11-03

    Applicant: Dale A. Harrison

    Inventor： Dale A. Harrison

    IPC: G01N21/47 ,  G01N21/55

    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。

    Electro-optic imaging Fourier transform spectrometer
    138.
    发明授权
    Electro-optic imaging Fourier transform spectrometer 有权
    电光成像傅立叶变换光谱仪

    公开(公告)号：US07639363B2

    公开(公告)日：2009-12-29

    申请号：US11518536

    申请日：2006-09-07

    Applicant: Tien-Hsin Chao ,  Hanying Znod

    Inventor： Tien-Hsin Chao ,  Hanying Znod

    IPC: G01B9/02

    CPC classification number: G01J3/4531 ,  G01J3/2823 ,  G01J3/447 ,  G01J3/4532

    Abstract: An Electro-Optic Imaging Fourier Transform Spectrometer (EOIFTS) for Hyperspectral Imaging is described. The EOIFTS includes an input polarizer, an output polarizer, and a plurality of birefringent phase elements. The relative orientations of the polarizers and birefringent phase elements can be changed mechanically or via a controller, using ferroelectric liquid crystals, to substantially measure the spectral Fourier components of light propagating through the EIOFTS. When achromatic switches are used as an integral part of the birefringent phase elements, the EIOFTS becomes suitable for broadband applications, with over 1 micron infrared bandwidth.

    Abstract translation: 描述了用于高光谱成像的电光成像傅里叶变换光谱仪（EOIFTS）。 EOIFTS包括输入偏振器，输出偏振器和多个双折射相位元件。 偏振器和双折射相元件的相对取向可以机械地或通过使用铁电液晶的控制器来改变，以基本上测量通过EIOFTS传播的光的光谱傅立叶分量。 当消色差开关用作双折射相元件的组成部分时，EIOFTS适用于宽带应用，具有超过1微米的红外带宽。

    Systems and methods for endoscopic angle-resolved low coherence interferometry
    139.
    发明授权
    Systems and methods for endoscopic angle-resolved low coherence interferometry 有权
    内镜角度分辨低相干干涉测量系统和方法

    公开(公告)号：US07595889B2

    公开(公告)日：2009-09-29

    申请号：US11548468

    申请日：2006-10-11

    Applicant: Adam Wax ,  John W. Pyhtila

    Inventor： Adam Wax ,  John W. Pyhtila

    IPC: G01B9/02 ,  G01J3/45 ,  G01B11/02

    CPC classification number: G01J3/4412 ,  A61B5/0066 ,  A61B5/0075 ,  A61B5/0084 ,  A61B5/7257 ,  G01B9/02044 ,  G01B9/02084 ,  G01B9/02087 ,  G01B9/0209 ,  G01J3/4531 ,  G01N21/31 ,  G01N21/4795 ,  G01N2021/4704 ,  G01N2021/4709 ,  G01N2021/4735 ,  G01N2201/08

    Abstract: Fourier domain a/LCI (faLCI) system and method which enables in vivo data acquisition at rapid rates using a single scan. Angle-resolved and depth-resolved spectra information is obtained with one scan. The reference arm can remain fixed with respect to the sample due to only one scan required. A reference signal and a reflected sample signal are cross-correlated and dispersed at a multitude of reflected angles off of the sample, thereby representing reflections from a multitude of points on the sample at the same time in parallel. Information about all depths of the sample at each of the multitude of different points on the sample can be obtained with one scan on the order of approximately 40 milliseconds. From the spatial, cross-correlated reference signal, structural (size) information can also be obtained using techniques that allow size information of scatterers to be obtained from angle-resolved data.

    Abstract translation: 傅里叶域a / LCI（faLCI）系统和方法，使用单次扫描能够以快速的速率进行体内数据采集。 通过一次扫描获得角度分辨和深度分辨的光谱信息。 由于仅需要一次扫描，参考臂可以相对于样品保持固定。 参考信号和反射的采样信号以相对于样本的多个反射角度相互相关并分散，从而同时并行地表示来自样品上的多个点的反射。 可以通过大约40毫秒量级的一次扫描获得关于样本上多个不同点的每个样本的所有深度的信息。 从空间相互关联的参考信号，也可以使用允许从角度分辨数据获得散射体的尺寸信息的技术来获得结构（尺寸）信息。

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