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    MULTI-PASS SPECTROSCOPY APPARATUS, ASSOCIATED SAMPLE HOLDER AND METHODS
    1.
    发明申请
    MULTI-PASS SPECTROSCOPY APPARATUS, ASSOCIATED SAMPLE HOLDER AND METHODS 有权

    公开(公告)号：US20220268698A1

    公开(公告)日：2022-08-25

    申请号：US17183172

    申请日：2021-02-23

    Applicant: Joseph R. Demers

    Inventor： Joseph R. Demers

    IPC: G01N21/3581

    Abstract: A sample cell includes an annular support surrounding a sample region. A set of reflectors of the annular support define an optical path that reflects a source beam in a sequence of alternating directions through the sample region at a plurality of different angles such that the source beam exits the set of reflectors after having passed through the sample region a plurality of times. A micro-cell is positionable in the sample region including multi-dimensionally distributed nano-pores. A slidingly adjustable lens forms part of source and detector photomixing packages.

    SEMICONDUCTOR PACKAGE FOR FREE-SPACE COUPLING OF RADIATION AND METHOD
    2.
    发明申请
    SEMICONDUCTOR PACKAGE FOR FREE-SPACE COUPLING OF RADIATION AND METHOD 有权

    公开(公告)号：US20220268692A1

    公开(公告)日：2022-08-25

    申请号：US17183191

    申请日：2021-02-23

    Applicant: Joseph R. Demers

    Inventor： Joseph R. Demers

    IPC: G01N21/31 ,  H01L31/0203 ,  H01L31/0232

    Abstract: A sample cell includes an annular support surrounding a sample region. A set of reflectors of the annular support define an optical path that reflects a source beam in a sequence of alternating directions through the sample region at a plurality of different angles such that the source beam exits the set of reflectors after having passed through the sample region a plurality of times. A micro-cell is positionable in the sample region including multi-dimensionally distributed nano-pores. A slidingly adjustable lens forms part of source and detector photomixing packages.

    Terahertz spectrometer with phase modulation and method
    4.
    发明授权
    Terahertz spectrometer with phase modulation and method 有权
    太赫兹光谱仪具有相位调制和方法

    公开(公告)号：US09086374B1

    公开(公告)日：2015-07-21

    申请号：US14262249

    申请日：2014-04-25

    Applicant: Joseph R. Demers ,  Bryon L. Kasper

    Inventor： Joseph R. Demers ,  Bryon L. Kasper

    IPC: G01J5/02 ,  G01N21/3563

    CPC classification number: G01N21/3563

    Abstract: A highly advantageous terahertz spectrometer with phase modulation and associated method are disclosed which utilize a second harmonic for generating an error signal to control a phase modulator to at least reduce nulls of an interference pattern.

    Abstract translation: 公开了一种具有相位调制和相关方法的非常有利的太赫兹光谱仪，其利用二次谐波来产生误差信号以控制相位调制器以至少减小干涉图案的零点。

    Terahertz frequency domain spectrometer with phase modulation of source laser beam
    5.
    发明授权
    Terahertz frequency domain spectrometer with phase modulation of source laser beam 有权
    太赫兹频域光谱仪，源激光束相位调制

    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。

    Terahertz frequency domain spectrometer with discrete coarse and fine tuning
    6.
    发明授权
    Terahertz frequency domain spectrometer with discrete coarse and fine tuning 有权
    太赫兹频域光谱仪，具有离散的粗调和微调

    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。

    TERAHERTZ FREQUENCY DOMAIN SPECTROMETER WITH PHASE MODULATION OF SOURCE LASER BEAM
    9.
    发明申请
    TERAHERTZ FREQUENCY DOMAIN SPECTROMETER WITH PHASE MODULATION OF SOURCE LASER BEAM 有权
    带激光束相位调制的TERAHERTZ频域分光光度计

    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。

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