INTERFEROMETER MAINTAINING OPTICAL RELATIONSHIP BETWEEN ELEMENTS
    201.
    发明申请
    INTERFEROMETER MAINTAINING OPTICAL RELATIONSHIP BETWEEN ELEMENTS 有权
    维持元素之间的光学关系的干涉仪

    公开(公告)号:US20080170231A1

    公开(公告)日:2008-07-17

    申请号:US11622815

    申请日:2007-01-12

    CPC classification number: G01J3/4535 G01J3/02 G01J3/0202 G01J3/0286

    Abstract: An interferometer for Fourier transform infrared spectroscopy includes a fixed assembly including a housing, a beam splitter, and a mirror fixedly positioned relative to each other. A movable assembly includes a housing, a mirror, and a motor coil, fixedly positioned relative to each other. A first flat spring has an opening for providing an unobstructed optical path of radiation therethrough. A first end of the first flat spring is secured to the fixed assembly and a second end of the first flat spring is secured to the movable assembly for providing movement of the movable assembly relative to the fixed assembly via the first flat spring. An optical relationship between the beam splitter, the mirror of the fixed assembly, and the mirror of the movable assembly is maintained independent of a distance between the movable assembly and the fixed assembly.

    Abstract translation: 用于傅里叶变换红外光谱的干涉仪包括固定组件,其包括壳体,分束器和相对于彼此固定定位的反射镜。 可移动组件包括相对于彼此固定地定位的壳体,反射镜和电动机线圈。 第一扁平弹簧具有用于提供通过其的无障碍的光路径的开口。 第一扁平弹簧的第一端被固定到固定组件上,并且第一平板弹簧的第二端固定到可移动组件,以通过第一平板弹簧提供可移动组件相对于固定组件的运动。 分束器,固定组件的反射镜和可移动组件的反射镜之间的光学关系保持独立于可移动组件和固定组件之间的距离。

    Multigas monitoring and detection system
    203.
    发明授权
    Multigas monitoring and detection system 有权
    Multigas监控和检测系统

    公开(公告)号:US07372573B2

    公开(公告)日:2008-05-13

    申请号:US11240799

    申请日:2005-09-30

    Abstract: A spectroscopic detection system is described for monitoring ambient air for toxic chemical substances. The system can be a compact, portable multiple gas analyzer capable of detecting and discriminating a broad range of chemical constituents including various nerve and blister agents as well as toxic industrial chemicals at low or sub part per billion (ppb) levels. The system minimizes false alarms (e.g., false positives or negatives), features high specificity, and can operate with response times on the order of a few seconds to a few minutes, depending on the application. The system can be an entirely self-contained analyzer, with a Fourier Transform Infrared (FTIR) spectrometer, a gas sample cell, a detector, an embedded processor, a display, power supplies, an air pump, heating elements, and other components onboard the unit with an air intake to collect a sample and an electronic communications port to interface with external devices.

    Abstract translation: 描述了一种用于监测有毒化学物质的环境空气的光谱检测系统。 该系统可以是一种紧凑型便携式多气体分析仪,能够检测和区分广泛范围的化学成分,包括各种神经和起泡剂以及低于或低于十亿分之一(ppb)水平的有毒工业化学品。 根据应用,该系统将假警报(例如,假阳性或阴性)最小化,具有高特异性,并且可以以几秒至几分钟的响应时间操作。 该系统可以是一个完全独立的分析仪,具有傅立叶变换红外(FTIR)光谱仪,气体样品池,检测器,嵌入式处理器,显示器,电源,空气泵,加热元件和船上的其他部件 具有进气口的单元收集样品和电子通信端口以与外部设备接口。

    Frequency comb cavity enhanced spectroscopy
    204.
    发明申请
    Frequency comb cavity enhanced spectroscopy 有权
    频梳增强光谱

    公开(公告)号:US20080074660A1

    公开(公告)日:2008-03-27

    申请号:US11707550

    申请日:2007-02-16

    CPC classification number: G01J3/26 G01N21/3504 G01N21/359 G01N21/39

    Abstract: Cavity enhanced spectroscopy efficiently couples a broadband optical frequency comb to a high finesse optical cavity inside which a sample test gas is placed. The output of the optical cavity is a multiplicity of channels of data resulting from the differential absorption of light at various of the comb frequencies. The device can operate in a ringdown mode or a non-ringdown enhanced absorption spectroscopy mode. Careful measurement and control of cavity dispersion and comb spacing are part of the coupling process. Several dispersive detection methods adapted to detecting the multiplicity of channels are provided.

    Abstract translation: 腔增强光谱法将宽带光频梳有效地耦合到其中放置样品测试气体的高精细光学腔。 光腔的输出是由各种梳状频率下的光的差分吸收而产生的多个数据通道。 该装置可以在振铃模式或非减振增强吸收光谱模式下工作。 仔细测量和控制腔体分散和梳齿间距是耦合过程的一部分。 提供了适用于检测多个通道的几种色散检测方法。

    Arrangement for building a miniaturized fourier transform interferometer for optical radiation according to the michelson principle or a principle derived therefrom
    205.
    发明授权
    Arrangement for building a miniaturized fourier transform interferometer for optical radiation according to the michelson principle or a principle derived therefrom 有权
    根据Michelson原理或从其衍生的原理构建用于光学辐射的小型化傅立叶变换干涉仪的布置

    公开(公告)号:US07301643B2

    公开(公告)日:2007-11-27

    申请号:US11113068

    申请日:2005-04-25

    CPC classification number: G01J3/4532

    Abstract: An arrangement for building a compact Fourier transform interferometer for optical radiation according to the Michelson principle or a principle derived therefrom. According to the invention, this arrangement is characterized in that the optical modulation of the radiation in at least one of the interferometer arms is produced by the translational displacement of micromechanical translation mirrors that are optically accessible on one side or on both sides, with an effective oscillation amplitude of at least 50 μm and a usable mirror surface area of at least 1 mm2. In doing so, the micromechanical mirror components according to the invention assume the function of known movable mirrors so that by using an almost massless microcomponent in comparison to conventional systems, a much smaller size and a mirror modulation frequency that is several orders of magnitude higher can be achieved. The arrangement according to the invention is used especially for optical spectroscopy.

    Abstract translation: 根据迈克尔逊原理或从其衍生的原理构建用于光辐射的紧凑型傅里叶变换干涉仪的装置。 根据本发明,这种布置的特征在于,通过在一侧或两侧光学可达的微机械平移反射镜的平移位移来产生至少一个干涉仪臂中的辐射的光学调制, 至少50微米的振荡幅度和至少1毫米2的可用镜面积。 在这样做时,根据本发明的微机械镜组件承担了已知可移动镜的功能,使得通过与传统系统相比使用几乎无质量的微组件,更小的尺寸和镜像调制频率高几个数量级 实现。 根据本发明的装置特别用于光谱学。

    Optical feedback from mode-selective tuner
    207.
    发明授权
    Optical feedback from mode-selective tuner 有权
    模式选择调谐器的光反馈

    公开(公告)号:US07259860B2

    公开(公告)日:2007-08-21

    申请号:US10946691

    申请日:2004-09-22

    Abstract: A mode-monitoring system used in connection with discrete beam frequency tunable laser provides optical feedback that can be used for adjusting the laser or for other processing associated with the use of the laser. For example, the output of a frequency tunable source for a frequency-shifting interferometer can be monitored to support the acquisition or processing of more accurate interference data. A first interferometer for taking desired measurements of optical path length differences traveled by different portions of a measuring beam can be linked to a second interferometer for taking measurements of the measuring beam itself. The additional interference data can be interpreted in accordance with the invention to provide measures of beam frequency and intensity.

    Abstract translation: 与分立光束可调谐激光器相结合使用的模式监测系统提供可用于调整激光器或与使用激光器相关的其他处理的光学反馈。 例如,可以监视用于频移干涉仪的频率可调谐源的输出,以支持获取或处理更准确的干扰数据。 用于取得测量光束的不同部分所行进的光程长度差的期望测量的第一干涉仪可以连接到用于测量测量光束本身的第二干涉仪。 可以根据本发明解释附加的干扰数据,以提供射束频率和强度的测量。

    Optochemical sensor
    208.
    发明申请
    Optochemical sensor 失效
    光化学传感器

    公开(公告)号:US20070165236A1

    公开(公告)日:2007-07-19

    申请号:US11332398

    申请日:2006-01-17

    Applicant: Manoj Haridas

    Inventor: Manoj Haridas

    Abstract: A sensor containing a beam emitter that emits a first beam having laser, a beam-splitting interferometer and an array detector, wherein the first beam is to strike a sample that produces a second beam comprising a Raman signal, the beam-splitting interferometer is to create a phase delay in the second beam, and the array detector comprises a plurality of detectors is disclosed. The sensor could be used for spectroscopic detection of a sample by generating a first beam comprising laser, striking the first beam to a sample to produce a second beam comprising a Raman signal, creating a phase delay in the second beam and detecting the Raman signal of the second beam. The uses of the sensor include detection of biological and chemical warfare agents, narcotics, among others for homeland security.

    Abstract translation: 一种传感器,其包含发射具有激光器的第一光束的射束发射器,分束干涉仪和阵列检测器,其中所述第一光束将对产生包括拉曼信号的第二光束的样品进行击穿,所述光束分裂干涉仪为 在第二光束中产生相位延迟,并且阵列检测器包括多个检测器。 该传感器可以用于对样品进行光谱检测,该方法是通过产生包括激光的第一光束,将第一光束撞击到样品以产生包含拉曼信号的第二光束,从而在第二光束中产生相位延迟并检测第二光束的拉曼信号 第二束。 传感器的使用包括检测生物和化学战剂,麻醉剂等,以便国土安全。

    Contactless corrosion sensor
    209.
    发明申请
    Contactless corrosion sensor 审中-公开
    非接触式腐蚀传感器

    公开(公告)号:US20070165215A1

    公开(公告)日:2007-07-19

    申请号:US11332234

    申请日:2006-01-17

    Applicant: Manoj Haridas

    Inventor: Manoj Haridas

    CPC classification number: G01N21/65 G01J3/02 G01J3/0291 G01J3/2803 G01J3/44

    Abstract: A corrosion sensor having a bean-splitting interferometer, a spectrometer and an analyzer, wherein said corrosion sensor is a contactless corrosion sensor configured to scan a sample comprising corroded and non-corroded areas, and further wherein said spectrometer collects Raman signatures from said sample, and said analyzer maps the corroded and non-corroded areas is disclosed. The corrosion sensor could be used for evaluation the degree of corrosion in the fuselage or engine of an aircraft, for example.

    Abstract translation: 一种具有豆分裂干涉仪,光谱仪和分析仪的腐蚀传感器,其中所述腐蚀传感器是构造成扫描包含腐蚀和未腐蚀区域的样品的非接触式腐蚀传感器,并且其中所述光谱仪从所述样品收集拉曼特征, 并且所述分析仪映射了被腐蚀和未腐蚀的区域。 例如,腐蚀传感器可用于评估飞机机身或发动机的腐蚀程度。

    Fabry-perot semiconductor tunable laser
    210.
    发明申请
    Fabry-perot semiconductor tunable laser 审中-公开
    法布里珀罗半导体可调谐激光器

    公开(公告)号:US20070159636A1

    公开(公告)日:2007-07-12

    申请号:US11652156

    申请日:2007-01-11

    Abstract: A tunable laser according to the present invention includes a plurality of Fabry-Perot semiconductor lasers comprising a plurality of semiconductor gain medium compositions disposed on a common sub-carrier with means for thermal tuning, and coupled to a sample. In a preferred embodiment, the lasers are coupled to a common multi-mode optical fiber, and an output radiation from the multi-mode fiber is tunable by switching the drive current amongst the lasers, and by thermal tuning of each laser in the array. In one preferred embodiment of this invention the plurality of Fabry-Perot semiconductor lasers are arranged around the perimeter of a cylindrical submount with a substantially circular cross-section. In another preferred embodiment a linear array of Fabry-Perot edge-emitting lasers is directly coupled to a multi-mode fiber. In still another preferred embodiment, an array of Fabry-Perot lasers is coupled to a fiber bundle.

    Abstract translation: 根据本发明的可调谐激光器包括多个法布里 - 珀罗半导体激光器,其包括多个半导体增益介质组合物,所述多个半导体增益介质组合物设置在具有用于热调谐的装置的共同副载波上并耦合到样品。 在优选实施例中,激光器耦合到公共多模光纤,并且来自多模光纤的输出辐射可通过切换激光器之间的驱动电流以及通过阵列中的每个激光器的热调谐来调节。 在本发明的一个优选实施例中,多个法布里 - 珀罗半导体激光器围绕具有基本圆形横截面的圆柱形基座的周边布置。 在另一个优选实施例中,法布里 - 珀罗边缘发射激光器的线性阵列直接耦合到多模光纤。 在另一优选实施例中,法布里 - 珀罗(Fabry-Perot)激光器的阵列耦合到纤维束。

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