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    Interference spectrometer
    222.
    发明专利
    Interference spectrometer 失效
    干涉光谱仪

    公开(公告)号：JPS59164926A

    公开(公告)日：1984-09-18

    申请号：JP698384

    申请日：1984-01-18

    Applicant: Nicolet Instrument Corp

    Inventor： JIYATSUKU JII KISURINGAA ,  DEII UOOREN BUIDORIN ,  DEEBITSUDO AI PURAUTO ,  DEEBITSUDO ESU KARUHAUN

    IPC: G01J3/45 ,  G01B9/02 ,  G01J3/453

    CPC classification number: G01J3/453

    Abstract: Analytical radiation from a source 10 enters a Michelson-type interferometer including a beam splitter 13 and a movable reflecting member 17. Quadrature phase discrimination is employed to provide signals indicative of the position and direction of movement of a portion of member 17 within the analytical radiation path, using a beam from laser 25 directed onto beam splitter 13 and, after reflection by fixed mirror 15 (via retardation plate 27) and movable mirror 17, passed coaxially with beam 11 to detector 28. Multiple quadrature phase discrimination systems may be employed to indicate of the position and direction of movement of three portions of a flat reflecting member. One portion may be within the analytical radiation path. An initial reference indicative of the position of the movable reflecting member independently of the beam splitter and an additional quadrature phase discrimination system may be provided. The reference system may provide redundantly an indication of position and direction of movement of member 17.

    MINIATURIZED FOURIER-TRANSFORM RAMAN SPECTROMETER SYSTEMS AND METHODS
    224.
    发明申请
    MINIATURIZED FOURIER-TRANSFORM RAMAN SPECTROMETER SYSTEMS AND METHODS 审中-公开

    公开(公告)号：WO2019032735A1

    公开(公告)日：2019-02-14

    申请号：PCT/US2018/045859

    申请日：2018-08-08

    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

    Inventor： GU, Tian ,  KITA, Derek, Matthew ,  HU, Juejin

    IPC: G01J3/44 ,  G01J3/45 ,  G01N21/65

    CPC classification number: G01J3/44 ,  G01J3/0218 ,  G01J3/0259 ,  G01J3/0272 ,  G01J3/453 ,  G01J3/4532 ,  G01N21/65

    Abstract: State-of-the-art portable Raman spectrometers use discrete free-space optical components that must be aligned well and that don't tolerate vibrations well. Conversely, the inventive spectrometers are made with monolithic photonic integration to fabricate some or all optical components on one or more planar substrates. Photonic integration enables dense integration of components, eliminates manual alignment and individual component assembly, and yields superior mechanical stability and resistance to shock or vibration. These features make inventive spectrometers especially suitable for use in high-performance portable or wearable sensors. They also yield significant performance advantages, including a large (e.g., 10,000-fold) increase in Raman scattering efficiency resulting from on-chip interaction of the tightly localized optical mode and the analyte and a large enhancement in spectral resolution and sensitivity resulting from the integration of an on-chip Fourier-transform spectrometer.

    DIFFUSER- BASED SOLAR-TRACKING WITH CAMERA FOR ATMOSPHERIC MEASUREMENTS.
    226.
    发明申请
    DIFFUSER- BASED SOLAR-TRACKING WITH CAMERA FOR ATMOSPHERIC MEASUREMENTS. 审中-公开
    基于扩散器的太阳跟踪与摄像机大气测量。

    公开(公告)号：WO2016187502A1

    公开(公告)日：2016-11-24

    申请号：PCT/US2016/033434

    申请日：2016-05-20

    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

    Inventor： CHEN, Jia ,  SAMRA, Jenna ,  WOFSY, Steven ,  BUDNEY, John

    IPC: G01J3/02

    CPC classification number: G01J3/027 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0237 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/453 ,  G01J2001/4266 ,  G01S3/7861

    Abstract: A device and method for tracking optics for a spectrometer, is disclosed. A plurality of tracking mirrors track a position of a light source relative to the tracking optics, receive light from the light source, and emit reflected light. A reflecting diffuser is configured to receive reflected light from the mirrors and diffuse and reflect the received light toward the spectrometer. A camera is configured to record an image of the light source on the diffuser surface, and a tracking mechanism is configured to adjust the position of one or more of the tracking mirrors according to the image of the light source in the recorded image.

    Abstract translation: 公开了用于跟踪光谱仪的光学元件的装置和方法。 多个跟踪镜跟踪光源相对于跟踪光学器件的位置，接收来自光源的光并发射反射光。 反射漫射器被配置为接收来自反射镜的反射光并且将接收的光漫射并反射到分光计。 相机被配置为将光源的图像记录在扩散器表面上，并且跟踪机构被配置为根据记录图像中的光源的图像来调整一个或多个跟踪反射镜的位置。

    COHERENT SPECTROSCOPIC METHODS WITH EXTENDED INTERROGATION TIMES AND SYSTEMS IMPLEMENTING SUCH METHODS
    227.
    发明申请
    COHERENT SPECTROSCOPIC METHODS WITH EXTENDED INTERROGATION TIMES AND SYSTEMS IMPLEMENTING SUCH METHODS 审中-公开
    具有扩展的时间和系统的相似光谱方法实现这种方法

    公开(公告)号：WO2016097332A1

    公开(公告)日：2016-06-23

    申请号：PCT/EP2015/080571

    申请日：2015-12-18

    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS ,  INSTITUT D'OPTIQUE GRADUATE SCHOOL ,  OBSERVATOIRE DE PARIS

    Inventor： BERTOLDI, Andrea ,  KOHLHAAS, Ralf ,  LANDRAGIN, Arnaud ,  BOUYER, Philippe, Luc

    IPC: B82Y10/00 ,  G01V7/00 ,  G04F5/14 ,  G06N99/00 ,  H03L7/26

    CPC classification number: G01J3/453 ,  B82Y10/00 ,  G01B2290/55 ,  G01J9/02 ,  G01V7/06 ,  G04F5/14

    Abstract: Coherent spectroscopic methods are described, to measure the total phase difference during an extended interrogation interval between the signal delivered by a local oscillator (10) and that given by a quantum system (QS). According to one or more embodiments, the method may comprise reading out at the end of successive interrogation sub-intervals (Ti) intermediate error signals corresponding to the approximate phase difference (φ) between the phase of the LO signal and that of the quantum system, using coherence preserving measurements; shifting at the end of each interrogation sub-intervals (Ti) the phase of the local oscillator signal, by a known correction value ( φ (i) FB ) so as to avoid that the phase difference approaches the limit of the inversion region; reading out a final phase difference (φf) between the phase of the prestabilized oscillator signal and that of the quantum system using a precise measurement with no restriction on the destruction; reconstructing a total phase difference over the extended interrogation interval, as the sum of the final phase difference (φf) and the opposite of all the applied phase corrections figure (I).

    Abstract translation: 描述了相干光谱方法，以测量由本地振荡器（10）传递的信号与由量子系统（QS）给出的信号之间的扩展询问间隔期间的总相位差。 根据一个或多个实施例，该方法可以包括在与LO信号的相位和量子系统的相位之间的近似相位差（φ）相对应的连续询问子间隔（Ti）中间误差信号的结尾处读出 ，使用相干性保存测量; 通过已知校正值（φ（i）FB）在每个询问子间隔（Ti）本地振荡器信号的相位移位，以避免相位差接近反转区域的极限; 使用精确的测量来读出预稳定振荡器信号的相位与量子系统的相位之间的最终相位差（φf），对破坏没有限制; 将扩展询问间隔中的总相位差重建为最终相位差（φf）与所有施加的相位校正图（I）的相反的总和。

    SYSTEM FOR ANALYZING OPTICAL PROPERTIES OF AN OBJECT
    228.
    发明申请
    SYSTEM FOR ANALYZING OPTICAL PROPERTIES OF AN OBJECT 审中-公开
    用于分析物体光学性质的系统

    公开(公告)号：WO2016024270A3

    公开(公告)日：2016-06-23

    申请号：PCT/IL2015050808

    申请日：2015-08-07

    Applicant: ADOM ADVANCED OPTICAL TECHNOLOGIES LTD

    Inventor： ARIELI YOEL ,  COHEN YOEL

    IPC: G01B9/02 ,  G01J3/02 ,  G01J3/453

    CPC classification number: G01B9/02091 ,  G01B9/02019 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/447 ,  G01J3/453 ,  G01N21/31 ,  G01N2201/0636 ,  G01N2201/0683

    Abstract: In a system for analyzing optical properties of an object (350) a point source of light (100) composed of multiple spectral bands each having a respective amplitude, phase and polarization is converted by first optics (120, 150) into a line light source to illuminate an object line on the object. A beam splitter (200) splits the light exiting the first optics and directs a first portion of light on to the object (350) as an illuminated line and a second portion of the light on to a reference mirror (450). Second optics (500) collects respective first and second lines of light reflected by the object and mirror of and collinearly images the reflected lines of light as an image line on to an imaging spectrometer (550) wherein mutual interference allows determination of the optical properties of the object at each point along the object line.

    Abstract translation: 在用于分析物体（350）的光学性质的系统中，由多个光谱带组成的点光源（100）分别由第一光学器件（120,150）转换为线光源 照亮物体上的物体线。 分束器（200）分离出射第一光学器件的光并且将第一部分光引导到物体（350）上作为照明线并且将光的第二部分引导到参考镜（450）上。 第二光学装置（500）收集由物体反射的各自的第一和第二线，以及将反射的线作为图像线共线地成像到成像光谱仪（550）上，其中相互干涉允许确定 沿着对象线的每个点处的对象。

    APPARATUS AND TECHNIQUES FOR FOURIER TRANSFORM MILLIMETER-WAVE SPECTROSCOPY
    229.
    发明申请
    APPARATUS AND TECHNIQUES FOR FOURIER TRANSFORM MILLIMETER-WAVE SPECTROSCOPY 审中-公开
    FOURIER变换微波波谱的设备和技术

    公开(公告)号：WO2014201230A1

    公开(公告)日：2014-12-18

    申请号：PCT/US2014/042094

    申请日：2014-06-12

    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION ,  PATE, Brooks Hart ,  STEBER, Amanda ,  HARRIS, Brent ,  LEHMANN, Kevin K.

    Inventor： PATE, Brooks Hart ,  STEBER, Amanda ,  HARRIS, Brent ,  LEHMANN, Kevin K.

    IPC: H01J49/36

    CPC classification number: G01N22/00 ,  G01J3/453 ,  G01N21/3586

    Abstract: Examples herein include apparatus and techniques that can be used to perform rotational spectroscopy on gas-phase samples. Such techniques can include using a spectrometer providing frequency synthesis and pulse modulation to provide excitation (e.g., pump or probe pulses) of a gas-phase sample at mm-wave frequencies. Synthesis of such mm-wave frequencies can include use of a frequency multiplier, such as an active multiplier chain (AMC). A free induction decay (FID) elicited by the excitation or other time-domain information can be obtained from the sample, such as down-converted and digitized. A frequency domain representation of the digitized information, such as a Fourier transformed representation, can be used to provide a rotational spectrum.

    Abstract translation: 本文的实例包括可用于对气相样品进行旋转光谱的装置和技术。 这样的技术可以包括使用提供频率合成和脉冲调制的光谱仪以毫米波频率提供气相样品的激发（例如泵或探针脉冲）。 这种mm波频率的合成可以包括使用诸如有源乘法器链（AMC）的倍频器。 可以从样品获得由激发或其他时域信息引起的自由感应衰减（FID），如下变频和数字化。 诸如傅立叶变换表示的数字化信息的频域表示可以用于提供旋转谱。

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