Cross-comb spectroscopy
    51.
    发明授权

    公开(公告)号:US11841271B2

    公开(公告)日:2023-12-12

    申请号:US17533926

    申请日:2021-11-23

    CPC classification number: G01J3/4338 G01J3/027 G01J3/0275 G01J2003/4332

    Abstract: A system for performing spectroscopy, including a first frequency comb source outputting first electromagnetic radiation comprising a first frequency comb centered at a first wavelength and having a first repetition rate; a second frequency comb source outputting a second electromagnetic radiation comprising a second frequency comb centered at a second wavelength and having a second repetition rate; a nonlinear device positioned to receive the first frequency comb and the second frequency comb, wherein the nonlinear device interacts the first frequency comb and the second frequency comb through sum frequency generation or difference frequency generation so as to generate an output electromagnetic radiation; and a detection system outputting a signal in response to detecting an interference of the output electromagnetic radiation with a third electromagnetic radiation, the signal comprising information used for determining a spectrum of at least the first frequency comb or the second frequency comb.

    METHOD FOR OBTAINING FULL REFLECTANCE SPECTRUM OF A SURFACE AND APPARATUS THEREFOR
    57.
    发明申请
    METHOD FOR OBTAINING FULL REFLECTANCE SPECTRUM OF A SURFACE AND APPARATUS THEREFOR 有权
    用于获得表面的全反射光谱的方法及其装置

    公开(公告)号:US20160109292A1

    公开(公告)日:2016-04-21

    申请号:US14894302

    申请日:2014-05-12

    Abstract: Disclosed are a method for obtaining a full reflectance spectrum of a surface and an apparatus therefor. The method for obtaining a full reflectance spectrum of a surface, comprises the steps of: (a) calculating a combination value of spectral characteristics of a light source and response characteristics of a camera for an image of a reference object, the full reflectance spectrum of a surface of which is known, by utilizing the known full reflectance spectrum of a surface; (b) obtaining an image by photographing an object irradiated with light according to a predetermined lighting environment; and (c) obtaining a full reflectance spectrum of a surface for the object by utilizing the combination value of the spectral characteristics of the light source and the response characteristics of the camera for the image.

    Abstract translation: 公开了一种获得表面的全反射光谱的方法及其装置。 用于获得表面的全反射光谱的方法包括以下步骤:(a)计算光源的光谱特性的组合值和用于参考对象的图像的照相机的响应特性,全反射光谱 通过利用表面的已知全反射光谱,其表面是已知的; (b)根据预定的照明环境拍摄照射光的物体获得图像; 和(c)通过利用光源的光谱特性的组合值和相机对于图像的响应特性来获得物体的表面的全反射光谱。

    METHOD OF MEASURING TERAHERTZ WAVE AND TERAHERTZ SPECTROSCOPIC APPARATUS
    58.
    发明申请
    METHOD OF MEASURING TERAHERTZ WAVE AND TERAHERTZ SPECTROSCOPIC APPARATUS 审中-公开
    测量TERAHERTZ波和TERAHERTZ光谱仪的方法

    公开(公告)号:US20090302223A1

    公开(公告)日:2009-12-10

    申请号:US12481140

    申请日:2009-06-09

    CPC classification number: G01J3/02 G01J3/021 G01J3/0275 G01J3/0291 G01N21/3581

    Abstract: A method of measuring a terahertz wave includes the steps of: starting input of a pulse signal showing that scale marks have been detected, which are arranged at equal intervals along a moving direction of a movable stage which can move in a direction in which an optical path length of incident pulse light is contracted or extended; and taking signals outputted at pulse intervals of the pulse light from a terahertz wave detecting section by synchronizing the timing with the pulse signal.

    Abstract translation: 一种测量太赫兹波的方法包括以下步骤:启动表示已经检测出刻度标记的脉冲信号的输入,该脉冲信号沿着可移动台的移动方向以相等的间隔布置,所述移动方向可沿光学 入射脉冲光的路径长度缩小或延长; 并且通过使定时与脉冲信号同步,以脉冲间隔从太赫兹波检测部分输出的信号。

    Optical instrument and parts thereof for optimally defining light pathways
    59.
    发明授权
    Optical instrument and parts thereof for optimally defining light pathways 失效
    光学仪器及其部件,用于最佳地定义光通路

    公开(公告)号:US07557925B2

    公开(公告)日:2009-07-07

    申请号:US11504187

    申请日:2006-08-15

    Abstract: An optical assembly is disclosed that includes an illumination source, a detection sensor, a monitor sensor, and an optical piece having a first side adapted to face a sample. The optical piece defines an illumination channel extending from the illumination source toward the first side, a detection channel extending from the first side toward the detection sensor, and a monitor channel extending from the illumination channel toward the monitor sensor. A spectrophotometer is also disclosed that includes a circuit board, illumination source and one or more sensors. The circuit board includes an optically transparent region, wherein the illumination source is mounted and situated relative to a first surface of the circuit board, so as to direct light through the optically transparent region. Each sensor is mounted and situated relative to a second surface of the circuit board opposite the first surface.

    Abstract translation: 公开了一种光学组件,其包括照明源,检测传感器,监视器传感器和具有适于面向样品的第一侧的光学片。 光学片限定从照明源向第一侧延伸的照明通道,从第一侧向检测传感器延伸的检测通道,以及从照明通道向监视传感器延伸的监视通道。 还公开了一种分光光度计,其包括电路板,照明源和一个或多个传感器。 电路板包括光学透明区域,其中相对于电路板的第一表面安装和定位照明源,以便将光引导通过光学透明区域。 每个传感器相对于与第一表面相对的电路板的第二表面安装和定位。

    Apparatus and method for measuring optical characteristics of an object
    60.
    发明授权
    Apparatus and method for measuring optical characteristics of an object 失效
    用于测量物体的光学特性的装置和方法

    公开(公告)号:US07397562B2

    公开(公告)日:2008-07-08

    申请号:US11475717

    申请日:2006-06-26

    Abstract: A method for determining spectral characteristics of an object is disclosed. A probe is positioned in proximity relative to the object and provides light to a surface of the object and receives light from the object. One or more critical heights are defined below which no specularly refelcted light is received and propagated. Prior to positioning the probe in proximity relative to the object, a plurality of position-sensitive calibration/normalization reference and a plurality of calibration/normalization measurements are taken with the probe at a plurality of predetermined positions with respect to the calibration/normalization reference. The intensity of light received is determined in a plurality of spectral bands with one or more measurements. The spectral characteristics of the object are determined based on the one or more measurements and based on data taken from one or more of the calibration/normalization measurements.

    Abstract translation: 公开了一种用于确定物体的光谱特性的方法。 探针相对于物体定位在邻近处,并且向对象的表面提供光并接收来自物体的光。 下面定义了一个或多个关键的高度,其中没有镜面反射光被接收和传播。 在将探针定位在相对于物体附近之前,多个位置敏感的校准/归一化参考和多个校准/归一化测量在探针相对于校准/归一化参考的多个预定位置处被采集。 在具有一个或多个测量的多个光谱带中确定所接收的光的强度。 基于一个或多个测量并且基于从一个或多个校准/归一化测量获取的数据来确定对象的光谱特性。

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