Plasmonic electric-field concentrator arrays and systems for performing raman spectroscopy
    181.
    发明授权
    Plasmonic electric-field concentrator arrays and systems for performing raman spectroscopy 失效
    等离子体电场集中器阵列和用于执行拉曼光谱的系统

    公开(公告)号:US07995201B2

    公开(公告)日:2011-08-09

    申请号:US12287549

    申请日:2008-10-10

    CPC classification number: G01N21/658

    Abstract: Various embodiments of the present invention relate to plasmonic electric-field concentrators and to systems incorporating the plasmonic electric-field concentrators to perform Raman spectroscopy. In one aspect, a plasmonic electric-field concentrator comprises two or more large features, and a relatively small feature similar in shape to large features positioned adjacent to the two or more large features. The features are arranged so that when light of an appropriate wavelength is incident on the features, surface plasmon polaritons form on the outer surfaces of the features. The surface plasmon polaritons have associated electric fields extending perpendicular to the surfaces of the features. The electric fields are concentrated in the space between features forming an electric field hot spot that enhances Raman scattered light emitted from an analyte proximate to or absorbed on the features.

    Abstract translation: 本发明的各种实施例涉及等离子体电场集中器以及结合等离子体激元集中器以执行拉曼光谱的系统。 一方面,等离子体电场集中器包括两个或更多个大特征,以及与形状相邻的相对较小的特征,其尺寸与两个或更多个特征邻近的大特征相似。 特征被布置成使得当适当波长的光入射到特征上时,在特征的外表面上形成表面等离子体激元。 表面等离子体激元极化子具有垂直于特征表面延伸的相关电场。 电场集中在形成电场热点的特征之间的空间中,其增强了从附近或被吸收在特征上的分析物发射的拉曼散射光。

    SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING VIBRATING NANORODS
    182.
    发明申请
    SURFACE ENHANCED RAMAN SPECTROSCOPY EMPLOYING VIBRATING NANORODS 有权
    表面增强拉曼光谱仪采用振动纳米级

    公开(公告)号:US20110188034A1

    公开(公告)日:2011-08-04

    申请号:US12697136

    申请日:2010-01-29

    CPC classification number: G01J3/44 G01N21/658

    Abstract: A surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a plurality of nanorods configured to vibrate. The apparatus includes the nanorods having tips at free ends opposite an end attached to a substrate. The tips are configured to adsorb an analyte and to vibrate at a vibration frequency. The apparatus further includes a vibration source configured to vibrate the free ends of the nanorods at the vibration frequency in a back-and-forth motion. Vibration of the nanorods is configured to facilitate detection of a Raman scattering signal emitted by the analyte adsorbed on the nanorod tips. The system further includes a synchronous detector configured to receive the Raman signal and to be gated cooperatively with the vibration of the nanorods. The method includes inducing a vibration of the nanorods, illuminating the vibrating tips to produce a Raman signal, and detecting the Raman signal using the detector.

    Abstract translation: 表面增强拉曼光谱(SERS)装置,系统和方法采用配置成振动的多个纳米棒。 该装置包括纳米棒,其具有与连接到基底的端部相对的自由端处的尖端。 尖端被配置为吸附分析物并以振动频率振动。 该装置还包括一个振动源,其构造成以往复运动的振动频率使纳米棒的自由端振动。 纳米棒的振动被配置为便于检测由吸附在纳米棒尖端上的分析物发射的拉曼散射信号。 该系统还包括一个同步检测器,其被配置为接收拉曼信号并与纳米棒的振动协同地门控。 该方法包括诱导纳米棒的振动,照亮振动尖端以产生拉曼信号,以及使用检测器检测拉曼信号。

    Structure for surface enhanced raman spectroscopy
    183.
    发明授权
    Structure for surface enhanced raman spectroscopy 有权
    表面增强拉曼光谱的结构

    公开(公告)号:US07965388B2

    公开(公告)日:2011-06-21

    申请号:US12416907

    申请日:2009-04-01

    CPC classification number: G01N21/658 G01N2021/058 Y10S977/712

    Abstract: A structure for surface enhanced Raman spectroscopy is disclosed herein. A substrate has a stack configured vertically thereon. The stack encompasses at least two metal layers and at least one dielectric layer therebetween. Each layer of the stack has a controlled thickness, and each of the at least two metal layers is configured to exhibit a predetermined characteristic of plasmonic resonance.

    Abstract translation: 本文公开了表面增强拉曼光谱的结构。 衬底具有垂直地配置的堆叠。 堆叠包括至少两个金属层和其间的至少一个电介质层。 堆叠的每个层具有受控的厚度,并且所述至少两个金属层中的每一个被配置为表现出等离子体共振的预定特性。

    TYPE SELECTIVE AND POLARIZATION SELECTIVE DEVICE FOR RAMAN SPECTROSCOPY
    184.
    发明申请
    TYPE SELECTIVE AND POLARIZATION SELECTIVE DEVICE FOR RAMAN SPECTROSCOPY 有权
    用于拉曼光谱的类型选择和极化选择装置

    公开(公告)号:US20100321685A1

    公开(公告)日:2010-12-23

    申请号:US12488318

    申请日:2009-06-19

    CPC classification number: G01J3/44 G01J3/02 G01J3/0224 G01N21/658

    Abstract: A type and polarization selective device for Raman spectroscopy includes a set of at least two antennas and a gap at their intersection. First antenna geometry is such that it is configured to resonate, for first or second (different from the first) polarization, at a predetermined stimulation frequency of a material for which Raman scattering is to be studied, or at a Stokes or anti-Stokes frequency corresponding with the material when excited at stimulation frequency. Second antenna geometry is such that it is configured to resonate, for the other of second or first polarization, at the Stokes frequency when the first antenna is configured to resonate at the stimulation or anti-Stokes frequency, or at the anti-Stokes frequency when the first antenna is configured to resonate at the stimulation or Stokes frequency, or at the stimulation frequency when the first antenna is configured to resonate at the Stokes or anti-Stokes frequency.

    Abstract translation: 用于拉曼光谱的类型和偏振选择装置包括至少两个天线的集合和它们的相交处的间隙。 第一天线几何形状使得其被配置为在要研究拉曼散射的材料的预定刺激频率下或在斯托克斯或反斯托克斯频率下谐振第一或第二(不同于第一极化)的极化 在刺激频率下激发时对应材料。 第二天线几何形状使得当第一天线被配置为以刺激或反斯托克斯频率或反斯托克斯频率谐振时,或者在反斯托克斯频率下,当第二天线几何形状被配置为对于第二或第一极化中的另一个以斯托克斯频率谐振, 第一天线被配置为在刺激或斯托克斯频率或刺激频率下谐振,当第一天线被配置为以斯托克斯或反斯托克斯频率谐振时。

    Method of Positioning Catalyst Nanoparticle and Nanowire-Based Device Employing Same
    187.
    发明申请
    Method of Positioning Catalyst Nanoparticle and Nanowire-Based Device Employing Same 失效
    定位催化剂纳米颗粒和基于纳米线的装置使用方法

    公开(公告)号:US20100109101A1

    公开(公告)日:2010-05-06

    申请号:US11742310

    申请日:2007-04-30

    Abstract: A method of positioning a catalyst nanoparticle that facilitates nanowire growth for nanowire-based device fabrication employs a structure having a vertical sidewall formed on a substrate. The methods include forming the structure, forming a targeted region in a surface of either the structure or the substrate, and forming a catalyst nanoparticle in the targeted region using one of a variety of techniques. The techniques control the position of the catalyst nanoparticle for subsequent nanowire growth. A resonant sensor system includes a nanowire-based resonant sensor and means for accessing the nanowire. The sensor includes an electrode and a nanowire resonator. The electrode is electrically isolated from the substrate. One or more of the substrate is electrically conductive, the nanowire resonator is electrically conductive, and the sensor further comprises another electrode. The nanowire resonator responds to an environmental change by displaying a change in oscillatory behavior.

    Abstract translation: 定位促进用于纳米线的器件制造的纳米线生长的催化剂纳米颗粒的方法采用具有形成在衬底上的垂直侧壁的结构。 所述方法包括形成结构,在结构或基底的表面中形成目标区域,并使用各种技术之一在目标区域中形成催化剂纳米颗粒。 该技术控制催化剂纳米颗粒在随后的纳米线生长中的位置。 谐振传感器系统包括基于纳米线的谐振传感器和用于访问纳米线的装置。 传感器包括电极和纳米线谐振器。 电极与衬底电隔离。 衬底中的一个或多个是导电的,纳米线谐振器是导电的,并且传感器还包括另一个电极。 纳米线谐振器通过显示振荡行为的变化来响应环境变化。

    Photonic device including at least one electromagnetic resonator operably coupled to a state-change material
    189.
    发明授权
    Photonic device including at least one electromagnetic resonator operably coupled to a state-change material 有权
    光子器件包括可操作地耦合到状态变化材料的至少一个电磁谐振器

    公开(公告)号:US07446929B1

    公开(公告)日:2008-11-04

    申请号:US11796085

    申请日:2007-04-25

    CPC classification number: G02F1/3515 G02F1/0009 G02F2203/13 G02F2203/15

    Abstract: Various aspects of the present invention are directed to photonic devices configured to control transmission of electromagnetic radiation through a resonator structure. In one aspect of the present invention, a photonic device includes at least one electromagnetic resonator and a state-change material operably coupled to the at least one electromagnetic resonator. The state-change material is capable of being reversibly transitioned between a high-resistivity state and a low-resistivity state, with a ratio of the resistivity of the high-resistivity state to the resistivity of the low-resistivity state being at least about 100. Transmission of electromagnetic radiation through the at least one electromagnetic resonator at an operational frequency is controllable by transitioning the state-change material between the high-resistivity state and the low-resistivity state. Methods for controlling transmission of a signal are also disclosed.

    Abstract translation: 本发明的各个方面涉及被配置为控制通过谐振器结构的电磁辐射的传输的光子器件。 在本发明的一个方面,光子器件包括至少一个电磁谐振器和可操作地耦合到至少一个电磁谐振器的状态变化材料。 状态变化材料能够在高电阻率状态和低电阻率状态之间可逆地转变,高电阻率状态的电阻率与低电阻率状态的电阻率的比率至少为约100 通过在高电阻率状态和低电阻率状态之间转变状态变化材料来控制以工作频率通过至少一个电磁谐振器的电磁辐射的传输。 还公开了用于控制信号传输的方法。

    Surface enhanced raman spectroscopy with periodically deformed sers-active structure
    190.
    发明申请
    Surface enhanced raman spectroscopy with periodically deformed sers-active structure 有权
    表面增强拉曼光谱与周期性变形的主动结构

    公开(公告)号:US20080270042A1

    公开(公告)日:2008-10-30

    申请号:US11796455

    申请日:2007-04-26

    CPC classification number: G01N21/658

    Abstract: An apparatus and related methods for facilitating surface-enhanced Raman spectroscopy (SERS) is described. A SERS-active structure near which a plurality of analyte molecules is disposed is periodically deformed at an actuation frequency. A synchronous measuring device synchronized with the actuation frequency receives Raman radiation scattered from the analyte molecules and generates therefrom at least one Raman signal measurement.

    Abstract translation: 描述了用于促进表面增强拉曼光谱(SERS)的装置和相关方法。 多个分析物分子附近的SERS-活性结构以致动频率周期性地变形。 与致动频率同步的同步测量装置接收从分析物分子散射的拉曼辐射,并由此产生至少一个拉曼信号测量。

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