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    Frequency comb spectroscopy apparatus and method of frequency comb spectroscopy
    1.
    发明授权
    Frequency comb spectroscopy apparatus and method of frequency comb spectroscopy 有权
    频梳梳光谱仪和频梳法

    公开(公告)号：US09322775B2

    公开(公告)日：2016-04-26

    申请号：US14758233

    申请日：2012-12-28

    Applicant: CNR—CONSIGLIO NAZIONALE DELLE RICERCHE

    Inventor： Gianluca Gagliardi ,  Saverio Avino ,  Antonio Giorgini ,  Paolo De Natale

    IPC: G01J3/28 ,  G01N21/39 ,  G01J3/02 ,  G01J3/433

    CPC classification number: G01N21/39 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/28 ,  G01J3/2803 ,  G01J2003/4332 ,  G01N2021/391 ,  G01N2021/399 ,  G01N2201/06113 ,  G01N2201/08

    Abstract: The present invention relates to a method and an apparatus to perform frequency comb spectroscopy. The method includes: —Arranging a waveguide optical cavity (3) having a plurality of cavity mode frequencies with a cavity mode frequency spacing (FSR), said waveguide optical cavity being dispersive so that the frequency spacing of the cavity modes is wavelength dependent; —Arranging a sample (S) with respect to the waveguide optical cavity (3) so that the sample is capable of absorbing light travelling into the waveguide optical cavity; —Coupling pulsed light coming from a light source (1) into the waveguide optical cavity (3), the source light including source comb frequencies (OCF) with a source frequency spacing (RR), the coupled light including an interval of frequencies centered on a main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample (S) of said main optical frequency from the detected transmitted frequencies, —Changing the cavity mode frequency (FSR) spacing or the source frequency spacing (RR); —Coupling the pulse light to the waveguide optical cavity (3), the coupled light including an interval of frequencies centered on a second main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said second main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample of said second main optical frequency from the detected transmitted frequencies.

    Abstract translation: 本发明涉及一种执行频率梳状光谱的方法和装置。 该方法包括： - 布置具有腔模式频率间隔（FSR）的多个腔模式频率的波导光腔（3），所述波导光腔是分散的，使得腔模的频率间隔是波长相关的; - 相对于所述波导光腔（3）布置样品（S），使得所述样品能够吸收行进到所述波导光腔中的光; 将来自光源（1）的脉冲光耦合到波导光腔（3）中，源光包括源频率间隔（RR）的源梳状频率（OCF），耦合光包括以 所述梳状频率由于腔体分散的主频率; 将所述波导光腔锁定在所述主光学频率处的频率梳; 检测发射的腔体频率; - 从所检测的发射频率确定所述主光频的所述样品（S）的吸收， - 使空腔模式频率（FSR）间隔或源频间隔（RR）延长; - 将所述脉冲光耦合到所述波导光腔（3），所述耦合光包括由于空腔分散而以所述梳状频率的第二主频率为中心的频率间隔; 将所述波导光腔锁定在所述第二主光学频率处的频率梳; 检测发射的腔体频率; - 从所检测的发射频率确定所述第二主光学频率的所述样本的吸收。

    High voltage fiber optic sensor for the measurement of an alternating electric field
    2.
    发明授权
    High voltage fiber optic sensor for the measurement of an alternating electric field 有权

    公开(公告)号：US09977056B2

    公开(公告)日：2018-05-22

    申请号：US15028271

    申请日：2014-10-09

    Applicant: CNR—CONSIGLIO NAZIONALE DELLE RICERCHE ,  LEDA SRL, LABORATORIO DI ELETTRODINAMICA AVANZATA

    Inventor： Gianluca Gagliardi ,  Fabrizio Marignetti

    IPC: G01R29/12 ,  G01R15/24

    CPC classification number: G01R15/24 ,  G01R29/12

    Abstract: A method for measuring an alternating electric field is disclosed. The method includes realizing a first diffraction grating in a first location, in a core of a silica-based optical fiber, and measuring a peak reflection wavelength of the first diffraction grating. The method also includes positioning the optical fiber along a direction having a non-zero component of an electrical field generated by an alternating voltage to be measured, and coupling a substantially monochromatic light to said optical fiber surrounded by the electric field. The method further includes measuring a parameter dependent on a shift of the peak reflection wavelength due to intrinsic mechanical deformation or refractive index change of the material in which the optical fiber and the diffracting grating are realized due to the alternating electric field, and calculating a value of the electric field causing such a measured deformation or refractive index change.

    HIGH VOLTAGE FIBER OPTIC SENSOR FOR THE MEASUREMENT OF AN ALTERNATING ELECTRIC FIELD
    3.
    发明申请
    HIGH VOLTAGE FIBER OPTIC SENSOR FOR THE MEASUREMENT OF AN ALTERNATING ELECTRIC FIELD 有权
    用于测量交流电场的高压光纤传感器

    公开(公告)号：US20160245846A1

    公开(公告)日：2016-08-25

    申请号：US15028271

    申请日：2014-10-09

    Applicant: CNR-CONSIGLIO NAZIONALE DELLE RICERCHE ,  LEDA SRL, LABORATORIO DI ELETTRODINAMICA AVANZATA

    Inventor： Gianluca GAGLIARDI ,  Fabrizio MARIGNETTI

    IPC: G01R15/24 ,  G01R29/12

    CPC classification number: G01R15/24 ,  G01R29/12

    Abstract: A method for measuring an alternating electric field is disclosed. The method includes realizing a first diffraction grating in a first location, in a core of a silica-based optical fiber, and measuring a peak reflection wavelength of the first diffraction grating. The method also includes positioning the optical fiber along a direction having a non-zero component of an electrical field generated by an alternating voltage to be measured, and coupling a substantially monochromatic light to said optical fiber surrounded by the electric field. The method further includes measuring a parameter dependent on a shift of the peak reflection wavelength due to intrinsic mechanical deformation or refractive index change of the material in which the optical fiber and the diffracting grating are realized due to the alternating electric field, and calculating a value of the electric field causing such a measured deformation or refractive index change.

    Abstract translation: 公开了一种用于测量交变电场的方法。 该方法包括在第一位置，在二氧化硅基光纤的芯中实现第一衍射光栅，并测量第一衍射光栅的峰值反射波长。 该方法还包括沿着具有由要测量的交流电压产生的电场的非零分量的方向定位光纤，以及将基本上单色的光耦合到由电场包围的所述光纤。 该方法还包括测量由于由于交变电场而实现光纤和衍射光栅的材料的固有机械变形或折射率变化引起的峰值反射波长的偏移的参数，并且计算值 的电场引起这种测量的变形或折射率变化。

    Confocal microscopy methods and devices
    4.
    发明授权
    Confocal microscopy methods and devices 有权

    公开(公告)号：US09927602B2

    公开(公告)日：2018-03-27

    申请号：US14388023

    申请日：2013-03-27

    Applicant: CNR CONSIGLIO NAZIONALE DELLE RICERCHE

    Inventor： Pier Alberto Benedetti

    IPC: H04N9/47 ,  H04N7/16 ,  G02B21/00

    CPC classification number: G02B21/0072 ,  G02B21/0032 ,  G02B21/0044 ,  G02B21/0076 ,  G02B21/008

    Abstract: A video-confocal microscopy method for creating an image of an optical section (π) of a sample (99), provides, in one aspect of the invention, illuminating the sample (99) with illumination beams (19) concentrated on spots (x,y) arranged in an illumination pattern (18) in an illumination plane (α0) at the optical section (π); translationally parallel moving the pattern (18) of spots (x,y) to a plurality of positions in the illumination plane; it also provides for each position (u,v) of the illumination pattern (18), receiving light (21) returned by the sample (99) by reflection and/or transmission and/or phosphorescence, and detecting raw images (52), each having a light intensity distribution Iu,v(x,y) on said image detector.

    FREQUENCY COMB SPECTROSCOPY APPARATUS AND METHOD OF FREQUENCY COMB SPECTROSCOPY
    6.
    发明申请
    FREQUENCY COMB SPECTROSCOPY APPARATUS AND METHOD OF FREQUENCY COMB SPECTROSCOPY 有权
    频率合成光谱仪和频率谱分析方法

    公开(公告)号：US20150355086A1

    公开(公告)日：2015-12-10

    申请号：US14758233

    申请日：2012-12-28

    Applicant: CNR - CONSIGLIO NAZIONALE DELLE RICERCHE

    Inventor： Gianluca GAGLIARDI ,  Saverio AVINO ,  Antonio GIORGINI ,  Paolo DE NATALE

    IPC: G01N21/39

    CPC classification number: G01N21/39 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/28 ,  G01J3/2803 ,  G01J2003/4332 ,  G01N2021/391 ,  G01N2021/399 ,  G01N2201/06113 ,  G01N2201/08

    Abstract: The present invention relates to a method and an apparatus to perform frequency comb spectroscopy. The method includes: —Arranging a waveguide optical cavity (3) having a plurality of cavity mode frequencies with a cavity mode frequency spacing (FSR), said waveguide optical cavity being dispersive so that the frequency spacing of the cavity modes is wavelength dependent; —Arranging a sample (S) with respect to the waveguide optical cavity (3) so that the sample is capable of absorbing light travelling into the waveguide optical cavity; —Coupling pulsed light coming from a light source (1) into the waveguide optical cavity (3), the source light including source comb frequencies (OCF) with a source frequency spacing (RR), the coupled light including an interval of frequencies centered on a main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample (S) of said main optical frequency from the detected transmitted frequencies, —Changing the cavity mode frequency (FSR) spacing or the source frequency spacing (RR); —Coupling the pulse light to the waveguide optical cavity (3), the coupled light including an interval of frequencies centered on a second main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said second main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample of said second main optical frequency from the detected transmitted frequencies.

    Abstract translation: 本发明涉及一种执行频率梳状光谱的方法和装置。 该方法包括： - 布置具有腔模式频率间隔（FSR）的多个腔模式频率的波导光腔（3），所述波导光腔是分散的，使得腔模的频率间隔是波长相关的; - 相对于所述波导光腔（3）布置样品（S），使得所述样品能够吸收行进到所述波导光腔中的光; 将来自光源（1）的脉冲光耦合到波导光腔（3）中，源光包括源频率间隔（RR）的源梳状频率（OCF），耦合光包括以 所述梳状频率由于腔体分散的主频率; 将所述波导光腔锁定在所述主光学频率处的频率梳; 检测发射的腔体频率; - 从所检测的发射频率确定所述主光频的所述样品（S）的吸收， - 使空腔模式频率（FSR）间隔或源频间隔（RR）延长; - 将所述脉冲光耦合到所述波导光腔（3），所述耦合光包括由于空腔分散而以所述梳状频率的第二主频率为中心的频率间隔; 将所述波导光腔锁定在所述第二主光学频率处的频率梳; 检测发射的腔体频率; - 从所检测的发射频率确定所述第二主光学频率的所述样本的吸收。

    LIGHT DRIVEN LIQUID CRYSTAL ELASTOMER ACTUATOR
    7.
    发明申请
    LIGHT DRIVEN LIQUID CRYSTAL ELASTOMER ACTUATOR 审中-公开
    轻型液晶弹性体激光器

    公开(公告)号：US20150315012A1

    公开(公告)日：2015-11-05

    申请号：US14647529

    申请日：2012-11-27

    Applicant: CNR - CONSIGLIO NAZIONALE DELLE RICERCHE ,  ISTITUTO ITALIANO DI TECNOLOGIA

    Inventor： Diederik Sybolt WIERSMA ,  Camilla PARMEGGIANI ,  Jean-Christophe GOMEZ-LAVOCAT ,  Kevin VYNCK

    IPC: B81B3/00 ,  G02B26/00 ,  F03G6/00 ,  G02F1/1333

    CPC classification number: B81B3/0029 ,  B81B2201/038 ,  F03G6/00 ,  F03G7/005 ,  G02B26/004 ,  G02F1/133362 ,  Y02E10/46 ,  Y10S901/01

    Abstract: A liquid crystal elastomer actuator to move in a fluid is described herein. The actuator includes a body with dimensions between 100 nm and 800 μm having a low Reynolds number. The body includes a first and a second spatially separated volume, each comprising a liquid crystal elastomer. The first volume is doped with a first photoactive doping substance to absorb electromagnetic radiation at a first wavelength and the second volume is doped with a second photoactive doping substance to absorb electromagnetic radiation at a second wavelength. The first and second volumes change shape as a consequence of light absorption at the first or second wavelength, defining a first and a second joint. A first absorbance of the first volume at a given wavelength is different than a second absorbance of the second volume at a given wavelength, the first and second absorbance are measured in the same time interval.

    Abstract translation: 这里描述了在流体中移动的液晶弹性体致动器。 致动器包括具有低雷诺数的尺寸在100nm和800μm之间的主体。 本体包括第一和第二空间分离的体积，每个体积包含液晶弹性体。 第一体积掺杂有第一光活性掺杂物质以吸收第一波长的电磁辐射，并且第二体积掺杂有第二光活性掺杂物质以吸收第二波长的电磁辐射。 第一和第二体积由于在第一或第二波长处的光吸收的结果而改变形状，限定了第一和第二接头。 在给定波长处的第一体积的第一吸光度与给定波长处的第二体积的第二吸光度不同，在相同的时间间隔中测量第一和第二吸光度。

    CONFOCAL MICROSCOPY METHODS AND DEVICES
    8.
    发明申请
    CONFOCAL MICROSCOPY METHODS AND DEVICES 有权
    CONFOCAL MICROSCOPY方法和设备

    公开(公告)号：US20150097942A1

    公开(公告)日：2015-04-09

    申请号：US14388023

    申请日：2013-03-27

    Applicant: CNR CONSIGLIO NAZIONALE DELLE RICERCHE

    Inventor： Pier Alberto Benedetti

    IPC: G02B21/00

    CPC classification number: G02B21/0072 ,  G02B21/0032 ,  G02B21/0044 ,  G02B21/0076 ,  G02B21/008

    Abstract: A video-confocal microscopy method for creating an image of an optical section (π) of a sample (99), provides, in one aspect of the invention, illuminating the sample (99) with illumination beams (19) concentrated on spots (x,y) arranged in an illumination pattern (18) in an illumination plane (α0) at the optical section (π); translationally parallel moving the pattern (18) of spots (x,y) to a plurality of positions in the illumination plane; it also provides for each position (u,v) of the illumination pattern (18), receiving light (21) returned by the sample (99) by reflection and/or transmission and/or phosphorescence, and detecting raw images (52), each having a light intensity distribution Iu,v(x,y) on said image detector.

    Abstract translation: 用于产生样品（99）的光学部分（＆pgr）的图像的视频共聚焦显微镜方法在本发明的一个方面中提供了用点集中的照明光束（19）照亮样品（99） x，y）在光学部分（＆pgr）处的照明平面（α0）中布置成照明图案（18）; 平移地将点（x，y）的图案（18）移动到照明平面中的多个位置; 它还提供照明图案（18）的每个位置（u，v），通过反射和/或透射和/或磷光接收样品（99）返回的光（21），并且检测原始图像（52）， 每个在所述图像检测器上具有光强度分布Iu，v（x，y）。

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