Method and device for cavity enhanced optical vernier spectroscopy
    171.
    发明授权
    Method and device for cavity enhanced optical vernier spectroscopy 失效
    用于腔增强光学游标光谱的方法和装置

    公开(公告)号:US08120773B2

    公开(公告)日:2012-02-21

    申请号:US12520577

    申请日:2007-12-19

    CPC classification number: G01J3/433 G01J3/10 G01J3/26 G01J3/457

    Abstract: A spectroscopic analysis of a sample includes arranging the sample in a resonator cavity for transmitting cavity mode frequencies with a cavity mode frequency spacing, coupling pulsed source light into the resonator cavity, with the source light including source comb frequencies with a source frequency spacing, coupling pulsed transmitted light out of the resonator cavity, and spectrally resolved detecting the transmitted light with a detector device. The cavity mode frequency spacing and the source frequency spacing are detuned relative to each other, so that the transmitted light includes transmitted comb frequencies with a spacing larger than the source frequency spacing. The detecting feature includes collecting spectral distributions of the transmitted light in dependence on relative positions of the cavity mode frequencies and the source comb frequencies. The cavity mode frequencies and the source comb frequencies are varied relative to each other and different transmitted comb frequencies are individually resolved.

    Abstract translation: 样品的光谱分析包括将样品布置在谐振腔中,用于传输具有腔模式频率间隔的腔模式频率,将脉冲源光耦合到谐振腔中,源光包括源频间隔的源梳状频率,耦合 将脉冲透射的光从谐振器腔中排出,并用检测器装置进行光谱解析检测透射光。 空腔模式频率间隔和源频率间隔相对于彼此失谐,使得透射光包括间隔大于源频率间隔的发射梳状频率。 检测特征包括根据腔模式频率和源梳状频率的相对位置收集透射光的光谱分布。 腔模式频率和源梳状频率相对彼此变化,并且不同的发射梳状频率被单独分辨。

    PROCESS AND INSTRUMENT FOR RECONSTRUCTION OF AN IRREGULARLY SAMPLED NARROW-BAND SIGNAL
    172.
    发明申请
    PROCESS AND INSTRUMENT FOR RECONSTRUCTION OF AN IRREGULARLY SAMPLED NARROW-BAND SIGNAL 有权
    用于重建非正常采样的窄带信号的过程和仪器

    公开(公告)号:US20110199616A1

    公开(公告)日:2011-08-18

    申请号:US13123938

    申请日:2009-09-01

    CPC classification number: G01J3/4535 G01J3/453 G01J3/4531 G01J3/457

    Abstract: According to a first aspect the invention relates to a reconstruction process of a narrow-band signal acquired by an instrument producing irregular sampling, in which two series of samples are acquired at the same sampling period, the two series being offset relative to one another such that the sampling errors are identical or quasi identical over both series. According to a second aspect, the invention relates to an instrument configured to carry out the process according to the first aspect of the invention.

    Abstract translation: 根据第一方面,本发明涉及通过产生不规则采样的仪器获取的窄带信号的重建过程,其中在相同采样周期获取两个系列的样本,两个系列相对于彼此偏移,如 两个系列的采样误差相同或相似。 根据第二方面,本发明涉及一种被配置为执行根据本发明的第一方面的方法的仪器。

    Referencing of the Beating Spectra of Frequency Combs
    173.
    发明申请
    Referencing of the Beating Spectra of Frequency Combs 有权
    参考频率梳子的跳动光谱

    公开(公告)号:US20110043815A1

    公开(公告)日:2011-02-24

    申请号:US12664887

    申请日:2008-06-26

    CPC classification number: G01J3/45 G01J3/453 G01J3/457 G01J9/04

    Abstract: There is provided a method for referencing and correcting the beating spectrum generated by the interference of the components of a frequency comb source. The proposed method allows monitoring of variations of a mapping between the source and the beating replica. This can then be used to compensate small variations of the source in Fourier transform spectroscopy or in any other interferometry application in order to overcome the accuracy and measurement time limitations of the prior art. Constraints on source stability are consequently reduced.

    Abstract translation: 提供了一种用于参考和校正由频率梳源的分量的干扰产生的拍频的方法。 所提出的方法允许监视源和跳动副本之间的映射的变化。 这可以用于补偿傅立叶变换光谱学或任何其他干涉测量应用中源的小变化,以克服现有技术的精度和测量时间限制。 因此,源稳定性的限制因此减少。

    Optical imaging or spectroscopy systems and methods
    175.
    发明申请
    Optical imaging or spectroscopy systems and methods 有权
    光学成像或光谱系统和方法

    公开(公告)号:US20100168586A1

    公开(公告)日:2010-07-01

    申请号:US12655325

    申请日:2009-12-29

    Abstract: Optical imaging or spectroscopy described can use laminar optical tomography (LOT), diffuse correlation spectroscopy (DCS), or the like. An incident beam is scanned across a target. An orthogonal or oblique optical response can be obtained, such as concurrently at different distances from the incident beam. The optical response from multiple incident wavelengths can be concurrently obtained by dispersing the response wavelengths in a direction orthogonal to the response distances from the incident beam. Temporal correlation can be measured, from which flow and other parameters can be computed. An optical conduit can enable endoscopic or laparoscopic imaging or spectroscopy of internal target locations. An articulating arm can communicate the light for performing the LOT, DCS, or the like. The imaging can find use for skin cancer diagnosis, such as distinguishing lentigo maligna (LM) from lentigo maligna melanoma (LMM).

    Abstract translation: 所描述的光学成像或光谱可以使用层状光学断层摄影(LOT),漫射相关光谱(DCS)等。 一个入射光束在目标上扫描。 可以获得正交或倾斜的光学响应,例如在与入射光束不同的距离处同时进行。 可以通过将响应波长分散在与入射光束的响应距离正交的方向上来同时获得来自多个入射波长的光学响应。 可以测量时间相关性,从中可以计算流量和其他参数。 光学导管可以实现内窥镜或腹腔镜成像或内部目标位置的光谱。 铰接臂可以通信用于执行LOT,DCS等的光。 成像可以用于皮肤癌诊断,例如区分恶性黑色素瘤(LMM)的恶性疟原虫(LM)。

    ATMOSPHERIC GAS DETECTION APPARATUS AND METHOD
    176.
    发明申请
    ATMOSPHERIC GAS DETECTION APPARATUS AND METHOD 有权
    大气气体检测装置及方法

    公开(公告)号:US20100102232A1

    公开(公告)日:2010-04-29

    申请号:US12552248

    申请日:2009-09-01

    CPC classification number: G01J3/457 G01N21/3518 G01N2021/1793 G01N2021/3531

    Abstract: A method of detecting a target gas includes the step of traversing a target area with a gas-filter correlation radiometer having a field of view oriented towards the target area. The gas-filter correlation radiometer receives reflected radiation in a passband from the target area and produces gas-filter correlation radiometer signals from the received reflected radiation. A surface reflectivity spectral profile of the target area is determined. The presence of the target gas in the target area is then determined based upon the received reflected radiation and the surface reflectivity spectral profile of the target area.

    Abstract translation: 检测目标气体的方法包括用具有朝向目标区域的视场的气体滤波器相关辐射计横穿目标区域的步骤。 气体过滤器相关辐射计从目标区域接收通带中的反射辐射,并从接收到的反射辐射产生气体滤波器相关辐射计信号。 确定目标区域的表面反射光谱轮廓。 然后基于所接收的反射辐射和目标区域的表面反射光谱轮廓来确定目标区域中目标气体的存在。

    APPARATUS AND METHOD FOR RAMAN SPECTROSCOPY AND MICROSCOPY WITH TIME DOMAIN SPECTRAL ANALYSIS
    178.
    发明申请
    APPARATUS AND METHOD FOR RAMAN SPECTROSCOPY AND MICROSCOPY WITH TIME DOMAIN SPECTRAL ANALYSIS 有权
    拉曼光谱法和具有时域光谱分析的显微镜的装置和方法

    公开(公告)号:US20090073432A1

    公开(公告)日:2009-03-19

    申请号:US12210656

    申请日:2008-09-15

    Abstract: An apparatus and method for measuring Raman-type spectra using optical dispersion to convert an optical spectrum into a waveform which can be detected directly in the time domain without the use of a conventional spectrometer. In the example of stimulated Raman spectroscopy, the apparatus and method exposes a sample to a chirped, pulsed probe beam and a Raman pump beam and the resulting Raman spectra is detected by an optical detector in the time domain, and analyzed. Alternatively, the Raman spectra from the probe and pump beams is chirped with a dispersive element prior to detection and analysis. Each probe pulse provides a snapshot of the Raman spectrum that is sampled in time so that neither repetitive waveforms nor static samples are required. Therefore, high speed acquisitions and high throughput assays can be conducted. To facilitate detection, these spectral signals can also be amplified using distributed Raman amplification directly in the dispersive element.

    Abstract translation: 一种使用光学色散测量拉曼光谱的装置和方法,用于将光谱转换成可在时域中直接检测的波形,而不需要使用常规光谱仪。 在受激拉曼光谱的实例中,该装置和方法将样品暴露于啁啾脉冲探针光束和拉曼泵浦光束,并且通过时域中的光学检测器检测所得拉曼光谱,并进行分析。 或者,来自探针和泵浦光束的拉曼光谱在检测和分析之前用分散元件啁啾。 每个探针脉冲提供了在时间上采样的拉曼光谱的快照,以便不需要重复波形和静态样本。 因此,可以进行高速采集和高通量测定。 为了便于检测,这些光谱信号也可以直接在分散元件中使用分布式拉曼放大进行放大。

    Device and method for optical spectroscopy
    179.
    发明授权
    Device and method for optical spectroscopy 有权
    光谱仪器和方法

    公开(公告)号:US07330267B1

    公开(公告)日:2008-02-12

    申请号:US09958397

    申请日:2000-04-07

    Applicant: Thilo Weitzel

    Inventor: Thilo Weitzel

    CPC classification number: G01J9/02 G01J3/453 G01J3/457 G01J2003/2866

    Abstract: The invention relates to an apparatus for optical spectroscopy having means to produce an interference pattern and having a spatially resolving detector which can record the interference pattern produced. In accordance with the invention, the wavefronts of at least one of the part rays involved in the interference pattern is influenced in dependence on the wavelength by spectrally dispersive or diffractive optical elements.

    Abstract translation: 本发明涉及一种用于光谱学的装置,其具有产生干涉图案的装置,并且具有可记录产生的干涉图案的空间分辨检测器。 根据本发明,涉及干涉图案的部分光线中的至少一个的波前根据光谱色散或衍射光学元件的波长而受到影响。

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