Far infrared thermal imaging system
    61.
    发明授权
    Far infrared thermal imaging system 失效
    远红外热成像系统

    公开(公告)号:US6124593A

    公开(公告)日:2000-09-26

    申请号:US23408

    申请日:1987-01-16

    Abstract: A far-infrared image is directed onto a transducer having a planar array of absorbing discs on one side. The discs are supported by a thin membrane ich expands and bulges as the discs heat up. The discs thus change their spacing with respect to a partially reflective mirror. The nominal spacing between the discs and mirror is about 1/4 wavelength of the infrared radiation, such that absorption is enhanced. The mirror is supported on a transparent substrate through which visible or near-infrared light is shown, and carries a perforated mask atop an insulating layer and in registration with the discs. The mirror/discs thus establish a Fabry-Perot cavity for the visible or near-infrared light, whereby a visible or near-infrared image may be observed or detected as the various discs establish various spacings in accordance with incremental variations in the infrared image. An electrostatic field is established between the mirror and the shield by a voltage source. This field induces an electrostatic field in the discs to pre-bias the discs toward the mirror and thus to tune or adjust the sensitivity of the transducer.

    Abstract translation: 远红外图像被引导到在一侧具有吸收盘的平面阵列的换能器。 光盘由薄膜支撑,薄膜随着光盘升温而膨胀和凸起。 因此,盘相对于部分反射镜改变它们的间隔。 光盘和反射镜之间的标称间距约为红外辐射的1/4波长,从而增强了吸收。 反射镜被支撑在透明基板上,通过该基板可见或近红外光被示出,并且在绝缘层顶部并且与盘对准地携带穿孔的掩模。 因此,镜/盘因此建立了用于可见光或近红外光的法布里 - 珀罗腔,由此可以观察或检测可见光或近红外图像,因为各种光盘根据红外图像的增量变化建立各种间隔。 通过电压源在反射镜和屏蔽之间建立静电场。 该磁场在磁盘中引起静电场以预先将磁盘偏置到反射镜,从而调节或调整换能器的灵敏度。

    Optical heterodyne detection for cavity ring-down spectroscopy
    62.
    发明授权
    Optical heterodyne detection for cavity ring-down spectroscopy 有权
    空腔衰落光谱的光学外差检测

    公开(公告)号:US6094267A

    公开(公告)日:2000-07-25

    申请号:US295213

    申请日:1999-04-21

    CPC classification number: G01N21/39 G01J3/30 G01J3/42

    Abstract: A cavity ring-down system for performing cavity ring-down spectroscopy (CRDS) using optical heterodyne detection of a ring-down wave E.sub.RD during a ring-down phase or a ring-up wave E.sub.RU during a ring up phase. The system sends a local oscillator wave E.sub.LO and a signal wave E.sub.SIGNAL to the cavity, preferably a ring resonator, and derives an interference signal from the combined local oscillator wave E.sub.LO and the ring-down wave E.sub.RD (or ring-up wave E.sub.RU). The local oscillator wave E.sub.LO has a first polarization and the ring-down wave E.sub.RD has a second polarization different from the first polarization. The system has a combining arrangement for combining or overlapping local oscillator wave E.sub.LO and the ring-down wave E.sub.RD at a photodetector, which receives the interference signal and generates a heterodyne current I.sub.H therefrom. Frequency and phase differences between the waves are adjustable.

    Abstract translation: 一种空穴衰减系统,用于在振铃阶段期间使用环形衰减波ERR的环外波检测来执行空腔衰减光谱(CRDS)。 该系统将本地振荡器波ELO和信号波ESIGNAL发送到腔,优选地是环形谐振器,并且从组合的本地振荡器波ELO和衰减波ERD(或振铃波ERU)导出干扰信号。 本地振荡器波ELO具有第一极化,并且降波波ERD具有与第一极化不同的第二极化。 该系统具有用于组合或重叠本地振荡器波ELO和在光电检测器处的​​衰减波ERD的组合布置,其接收干扰信号并从其产生外差电流IH。 波之间的频率和相位差可调。

    Multiple-zone emission spectra collection
    63.
    发明授权
    Multiple-zone emission spectra collection 失效
    多区域发射光谱收集

    公开(公告)号:US5956138A

    公开(公告)日:1999-09-21

    申请号:US32075

    申请日:1998-02-27

    Inventor: Joseph B. Slater

    CPC classification number: G01J3/30 G01J3/443 G01J2003/2866

    Abstract: The collection of spectral information is enhanced through the formation of multiple zones of excitation and emission. In one embodiment, a plurality of the zones are located within a sample substance, thereby increasing the efficiency of sample spectrum collection. In another embodiment, a reference substance is positioned so as to enclose at least one of the excitation/collection zones. The reference substance adds a known spectrum to the collection path, enabling analytical instrumentation to compare the sample and reference spectra for calibration purposes. In a further embodiment, one of the zones may be positioned within a sealed volume, and compositional changes in the sealed volume may be detected and used for leak-detection purposes.

    Abstract translation: 通过形成激发和发射的多个区域来增强光谱信息的收集。 在一个实施例中,多个区域位于样品物质内,从而提高样品谱图收集的效率。 在另一个实施方案中,将参考物质定位成包围至少一个激发/收集区。 参考物质将已知的光谱添加到收集路径,使分析仪器可以比较样品和参考光谱进行校准。 在另一个实施例中,其中一个区域可以位于密封体积内,并且可以检测密封体积中的组成变化并用于泄漏检测目的。

    Apparatus and method for method for spatially- and spectrally-resolved
measurements
    64.
    发明授权
    Apparatus and method for method for spatially- and spectrally-resolved measurements 失效
    用于空间和光谱分辨测量的方法的装置和方法

    公开(公告)号:US5192980A

    公开(公告)日:1993-03-09

    申请号:US721282

    申请日:1991-06-26

    Abstract: A scanning optical microscope or mapping system for spectrally-resolved measurement of light reflected, emitted or scatttered from a specimen is disclosed, in which the spectrally-resolving element is integrated into the detection arm of the microscope or mapping system to result in good photon collection efficiency as well as good spectral and spatial resolution. A confocal version of the microscope is disclosed which will be of particular interest in fluorescence microscopy, and the non-confocal mapping system will be of particular interest in photoluminescence mapping of semiconductor wafers.

    Abstract translation: 公开了一种用于光谱分辨测量从样本反射,发射或刻蚀的光的扫描光学显微镜或测绘系统,其中光谱分辨元件被集成到显微镜或测绘系统的检测臂中以产生良好的光子收集 效率以及良好的光谱和空间分辨率。 公开了共聚焦版本的显微镜,其将在荧光显微镜中特别感兴趣,并且非共焦映射系统将在半导体晶片的光致发光映射中特别感兴趣。

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