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    LASER INDUCED BREAKDOWN SPECTROSCOPY SAMPLE CHAMBER
    1.
    发明申请
    LASER INDUCED BREAKDOWN SPECTROSCOPY SAMPLE CHAMBER 有权
    激光诱导破碎光谱样品室

    公开(公告)号：US20160187201A1

    公开(公告)日：2016-06-30

    申请号：US14587502

    申请日：2014-12-31

    Applicant: THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC.

    Inventor： Peidong Wang ,  Haowen Li ,  Rong Sun ,  Michael Bush

    IPC: G01J3/443 ,  G01J3/02

    CPC classification number: G01J3/443 ,  G01J3/0208 ,  G01J3/0262 ,  G01N21/15 ,  G01N21/718

    Abstract: Methods and apparatus for laser induced breakdown spectroscopy (LIBS) sample chamber. An apparatus includes a sample chamber, a laser source connected to an excitation optics assembly, the excitation optics assembly connected to a first port on the sample chamber, a collimator assembly connected to a spectrometer, the collimator assembly connected to a second port on the sample chamber, and a first lens tube positioned on the first port and a second lens tube positioned on the second port, the first lens tube protecting the first port connected to the excitation optics assembly and the second lens tube protecting the second port connected to the collimator assembly from particles emitted when a laser pulse from the laser source ablates a surface of a target sample and generates a plasma.

    Abstract translation: 激光诱导击穿光谱（LIBS）样品室的方法和装置。 一种装置包括样品室，连接到激发光学组件的激光源，连接到样品室上的第一端口的激发光学组件，连接到光谱仪的准直器组件，连接到样品上的第二端口的准直器组件 以及位于所述第一端口上的第一透镜管和位于所述第二端口上的第二透镜管，所述第一透镜套管保护连接到所述激发光学组件的所述第一端口，所述第二透镜套管保护连接到所述准直器的所述第二端口 当来自激光源的激光脉冲消除靶样品的表面并产生等离子体时发射的颗粒的组装。

    COMBINED RAMAN SPECTROSCOPY AND LASER-INDUCED BREAKDOWN SPECTROSCOPY
    2.
    发明申请
    COMBINED RAMAN SPECTROSCOPY AND LASER-INDUCED BREAKDOWN SPECTROSCOPY 审中-公开
    组合拉曼光谱和激光诱发的断裂光谱

    公开(公告)号：US20160169805A1

    公开(公告)日：2016-06-16

    申请号：US14571420

    申请日：2014-12-16

    Applicant: Thermo Scientific Portable Analytical Instruments Inc.

    Inventor： Peidong Wang

    IPC: G01N21/65 ,  G01N21/71

    CPC classification number: G01N21/65 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0272 ,  G01J3/44 ,  G01J3/443 ,  G01N21/718 ,  G01N2201/0221 ,  G01N2201/06113

    Abstract: An apparatus includes a single laser source configurable to produce laser pulses directable towards a target substance, a focusing lens optically positionable between the single laser source and the target substance, the focusing lens focusing a first laser pulse to ablate at least a portion of the target substance when in a first focusing lens position to generate a plasma plume, the plume emitting atomic emission lines characteristic of elements including the target substance, the focusing lens focusing a second laser pulse in the target substance when in a second focusing lens position, resulting in Raman scattering, a collection optics assembly to detect signals representing the atomic emission lines characteristic of the target substance and the Raman scattering, and a spectrometer to detect signals received from the collection optics assembly.

    Abstract translation: 一种装置包括：单个激光源，可配置为产生可朝向目标物质定向的激光脉冲;聚焦透镜，可在该单个激光源和目标物质之间光学定位;聚焦透镜将第一激光脉冲聚焦以消融靶的至少一部分 当处于第一聚焦透镜位置以产生等离子体羽流时，所述羽流发射包括所述目标物质的元素的特征的原子发射线，所述聚焦透镜在第二聚焦透镜位置时将第二激光脉冲聚焦在所述目标物质中，导致 拉曼散射，用于检测表示目标物质的特征的原子发射线的信号和拉曼散射的收集光学组件，以及用于检测从收集光学组件接收的信号的光谱仪。

    Raman spectroscopy using diffractive MEMS
    3.
    发明授权
    Raman spectroscopy using diffractive MEMS 有权
    使用衍射MEMS的拉曼光谱

    公开(公告)号：US09194743B2

    公开(公告)日：2015-11-24

    申请号：US14629858

    申请日：2015-02-24

    Applicant: Thermo Scientific Portable Analytical Instruments Inc.

    Inventor： David R. Day ,  Malcolm C. Smith ,  Peidong Wang

    IPC: G01J3/44 ,  G01J3/32 ,  G01J3/02 ,  G01N21/65

    CPC classification number: G01J3/32 ,  G01J3/0229 ,  G01J3/0272 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/65 ,  G01N2201/06113

    Abstract: A Raman spectrometer including a laser excitation source, edge filters, and detection optics that direct light into a spectrograph. A spectrograph containing a dispersive element and optics that directs various wavelengths of light onto a segmented diffractive MEMS light modulator array. The MEMS array, depending on actuation state, directs light either to or away from a single detector. Control electronics drive the MEMS light modulator for either sequential wavelength measurement or multiplexed wavelength measurement (Hadamard for example).

    Abstract translation: 拉曼光谱仪包括激光源，边缘滤光片以及将光引入光谱仪的检测光学器件。 包含分散元件和光学元件的光谱仪，其将各种波长的光引导到分段的衍射MEMS光调制器阵列上。 取决于致动状态的MEMS阵列将光指向或远离单个检测器。 控制电子驱动MEMS光调制器用于顺序波长测量或多路复用波长测量（例如Hadamard）。

    PORTABLE LASER INDUCED BREAKDOWN SPECTROSCOPY SYSTEMS
    6.
    发明申请
    PORTABLE LASER INDUCED BREAKDOWN SPECTROSCOPY SYSTEMS 审中-公开

    公开(公告)号：US20200300770A1

    公开(公告)日：2020-09-24

    申请号：US16946054

    申请日：2020-06-04

    Applicant: THERMO SCIENTIFIC PORTABLE ANALYTICAL INSTRUMENTS INC.

    Inventor： Peidong Wang ,  Rong SUN ,  Brendan FALVEY ,  Haowen LI ,  Yu SHEN ,  Michael DUGAS

    IPC: G01N21/71 ,  G01J3/443 ,  G01J3/02 ,  G01J3/10

    Abstract: An embodiment of a laser induced breakdown system is described that comprises a portable device that includes: a laser configured to produce a beam comprising a plurality of repeating pulses; a processor configured to open a data acquisition window after a delay period, wherein the delay period begins upon production of one of the pulses; one or more optical elements configured to direct the beam at a sample and collect emitted light from a plasma continuum; and an optical detector configured to produce a plurality of signal values from the emitted light from the plasma continuum collected during the data acquisition window, wherein the processor is configured to identify an element from the signal values.

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