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    • 1. 发明授权
    • Electrically driven devices for surface enhanced raman spectroscopy
    • 用于表面增强拉曼光谱的电驱动装置
    • US08559003B2
    • 2013-10-15
    • US13384456
    • 2009-09-17
    • Huei Pei KuoShih-Yuan WangMin HuZhiyong LiAlexandre M. Bratkovski
    • Huei Pei KuoShih-Yuan WangMin HuZhiyong LiAlexandre M. Bratkovski
    • G01J3/44
    • G01N21/658B82Y15/00B82Y30/00
    • An electrically driven device for surface enhanced Raman spectroscopy includes a first electrode, a substrate positioned proximate to the first electrode, a plurality of cone shaped protrusions formed integrally with or on a substrate surface, a Raman signal-enhancing material coated on each protrusion, and a second electrode positioned relative to the first electrode at a predetermined distance. Each of the protrusions has a tip with a radius of curvature ranging from about 0.1 nm to about 100 nm. The second electrode is positioned relative to the first electrode such that the electrodes together produce an electric field when a voltage bias is applied therebetween. The electric field has a field distribution that creates a stronger field gradient at a region proximate to the tips than at other portions of the substrate.
    • 用于表面增强拉曼光谱的电驱动装置包括第一电极,靠近第一电极定位的基板,与基底表面一体地形成的多个锥形突起,涂覆在每个突起上的拉曼信号增强材料,以及 相对于第一电极以预定距离定位的第二电极。 每个突起具有具有约0.1nm至约100nm范围的曲率半径的尖端。 第二电极相对于第一电极定位,使得当在其之间施加电压偏置时,电极一起产生电场。 电场具有场分布,其在靠近尖端的区域处产生比在衬底的其它部分更强的场梯度。
    • 7. 发明申请
    • VIBRATING TIP SURFACE ENHANCED RAMAN SPECTROSCOPY
    • 振动提示表面增强拉曼光谱
    • US20110188035A1
    • 2011-08-04
    • US12697156
    • 2010-01-29
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • G01J3/44
    • G01J3/44
    • A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector.
    • 振动尖端表面增强拉曼光谱(SERS)装置,系统和方法采用配置为振动的纳米针。 该装置包括在与连接到基底的端相对的自由端处具有基本尖锐的尖端的纳米针。 尖端构造成吸附分析物。 该装置还包括一个被配置为提供交流(AC)电场的振动源,其引起自由端和纳米针的尖端的振动。 在AC电场的影响下,纳米针的振动有助于检测吸附在纳米针尖上的分析物的拉曼散射信号。 该系统还包括配置为与纳米针的振动协同地选通的同步检测器。 该方法包括引起振动,照亮振动尖端以产生拉曼信号,并使用检测器检测拉曼信号。
    • 9. 发明授权
    • Vibrating tip surface enhanced Raman spectroscopy
    • 振动尖端表面增强拉曼光谱
    • US08243270B2
    • 2012-08-14
    • US12697156
    • 2010-01-29
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • Huei Pei KuoMichael J. StukeMin HuFung Suong OuShih-Yuan (SY) WangAlexandre M. BratkovskiWei WuZhiyong Li
    • G01J3/44
    • G01J3/44
    • A vibrating tip surface enhanced Raman spectroscopy (SERS) apparatus, system and method employ a nano-needle configured to vibrate. The apparatus includes the nano-needle with a substantially sharp tip at a free end opposite an end attached to a substrate. The tip is configured to adsorb an analyte. The apparatus further includes a vibration source configured to provide an alternating current (AC) electric field that induces a vibration of the free end and the tip of the nano-needle. Vibration of the nano-needle under the influence of the AC electric field facilitates detection of a Raman scattering signal from the analyte adsorbed on the nano-needle tip. The system further includes a synchronous detector configured to be gated cooperatively with the vibration of the nano-needle. The method includes inducing the vibration, illuminating the vibrating tip to produce a Raman signal, and detecting the Raman signal using the detector.
    • 振动尖端表面增强拉曼光谱(SERS)装置,系统和方法采用配置为振动的纳米针。 该装置包括在与连接到基底的端相对的自由端处具有基本尖锐的尖端的纳米针。 尖端构造成吸附分析物。 该装置还包括一个被配置为提供交流(AC)电场的振动源,其引起自由端和纳米针的尖端的振动。 在AC电场的影响下,纳米针的振动有助于检测吸附在纳米针尖上的分析物的拉曼散射信号。 该系统还包括配置为与纳米针的振动协同地选通的同步检测器。 该方法包括引起振动,照亮振动尖端以产生拉曼信号,并使用检测器检测拉曼信号。
    • 10. 发明申请
    • ELECTRICALLY DRIVEN DEVICES FOR SURFACE ENHANCED RAMAN SPECTROSCOPY
    • 用于表面增强拉曼光谱的电驱动装置
    • US20120113420A1
    • 2012-05-10
    • US13384456
    • 2009-09-17
    • Huei Pei KuoShih-Yuan WangMin HuZhiyong LiAlexander M. Bratkovski
    • Huei Pei KuoShih-Yuan WangMin HuZhiyong LiAlexander M. Bratkovski
    • G01J3/44
    • G01N21/658B82Y15/00B82Y30/00
    • An electrically driven device (10) for surface enhanced Raman spectroscopy includes a first electrode (16), a substrate (12) positioned proximate to the first electrode (16), a plurality of cone shaped protrusions (12′) formed integrally with or on a substrate surface (S), a Raman signal-enhancing material (14) coated on each protrusion (12′), and a second electrode (18) positioned relative to the first electrode (16) at a predetermined distance, D. Each of the protrusions (12′) has a tip (22) with a radius of curvature, r, ranging from about 0.1 nm to about 100 nm. The second electrode (18) is positioned relative to the first electrode (16) such that the electrodes (16, 18) together produce an electric field (EF) when a voltage bias is applied therebetween. The electric field (EF) has a field distribution that creates a stronger field gradient at a region proximate to the tips (22) than at other portions of the substrate (12).
    • 用于表面增强拉曼光谱的电驱动装置(10)包括第一电极(16),靠近第一电极(16)定位的基板(12),与该第一电极(16)一体形成的多个锥形突起 涂覆在每个突起(12')上的衬底表面(S),拉曼信号增强材料(14)和相对于第一电极(16)以预定距离D定位的第二电极(D)。 突起(12')具有从约0.1nm至约100nm范围内的具有曲率半径r的尖端(22)。 第二电极(18)相对于第一电极(16)定位,使得当施加电压时,电极(16,18)一起产生电场(EF)。 电场(EF)具有在靠近尖端(22)的区域处比在衬底(12)的其它部分处产生更强的场梯度的场分布。