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17 条记录 (耗时 0.034 秒)

    Optical devices and methods employing nanoparticles, microcavities, and semicontinuous metal films
    1.
    发明授权
    Optical devices and methods employing nanoparticles, microcavities, and semicontinuous metal films 失效
    使用纳米颗粒，微腔和半连续金属膜的光学器件和方法

    公开(公告)号：US07123359B2

    公开(公告)日：2006-10-17

    申请号：US10661319

    申请日：2003-09-12

    申请人： Robert L. Armstrong ,  Vladimir M. Shalaev ,  Harold V. Smith ,  Andrey K. Sarychev ,  Z. Charles Ying

    发明人： Robert L. Armstrong ,  Vladimir M. Shalaev ,  Harold V. Smith ,  Andrey K. Sarychev ,  Z. Charles Ying

    IPC分类号： G01J3/44

    CPC分类号： B82Y20/00 ,  B82Y10/00 ,  G01J3/44 ,  G01N21/65 ,  G01N2021/655 ,  G02F1/353 ,  G02F1/3534 ,  G02F1/3536 ,  G02F1/3538 ,  G02F1/355 ,  G02F1/37 ,  G02F1/39 ,  G02F2202/36 ,  G02F2203/15 ,  G11B7/00453 ,  H01S3/0602 ,  H01S3/30

    摘要： An optical sensing enhancing material (and corresponding method of making) comprising: a medium, the medium comprising a plurality of aggregated nanoparticles comprising fractals; and a microcavity, wherein the medium is located in a vicinity of the microcavity. Also an optical sensor and sensing method comprising: providing a doped medium, the medium comprising a plurality of aggregated nanoparticles comprising fractals, with the material; locating the doped medium in the vicinity of a microcavity; exciting the doped medium with a light source; and detecting light reflected from the doped medium. Also an optical sensing enhancing material comprising a medium, the medium comprising a semicontinuous metal film of randomly distributed metal particles and their clusters at approximately their percolation threshold. The medium preferably additionally comprises a microcavity/microresonator. Also devices and methods employing such material.

    摘要翻译： 一种光学感测增强材料（和相应的制备方法），包括：介质，所述介质包含多个包含分形的聚集的纳米颗粒; 和微腔，其中介质位于微腔附近。 还有一种光学传感器和感测方法，包括：提供掺杂介质，所述介质包含多个包含分形的聚集的纳米颗粒与所述材料; 将掺杂介质定位在微腔附近; 用光源激发掺杂介质; 以及检测从掺杂介质反射的光。 还有一种包括介质的光学感测增强材料，该介质包括大致其渗透阈值下随机分布的金属颗粒及其簇的半连续金属膜。 该介质优选地另外包括微腔/微谐振器。 也是采用这种材料的装置和方法。

    Raman imaging and sensing apparatus employing nanoantennas
    4.
    发明授权
    Raman imaging and sensing apparatus employing nanoantennas 失效
    使用纳米天线的拉曼成像和感测装置

    公开(公告)号：US06985223B2

    公开(公告)日：2006-01-10

    申请号：US10753155

    申请日：2004-01-06

    申请人： Vladimir P. Drachev ,  Vladimir M. Shalaev ,  Andrey K. Sarychev

    发明人： Vladimir P. Drachev ,  Vladimir M. Shalaev ,  Andrey K. Sarychev

    IPC分类号： G01J3/44

    CPC分类号： G01N21/658 ,  G01N2021/656 ,  G01Q60/22

    摘要： A Raman imaging and sensing apparatus is described. The apparatus employs a nanoantenna structure which includes a metal tip spaced from a metal surface or particle. A light beam impinges upon the nanoantenna and causes plasmon resonance. The plasmon resonance excites a sample resulting in dramatically enhanced Raman scattering of the sample. The Raman scatter is collected by a spectrophotometer which provides an output signal indicative of the composition of the sample.

    摘要翻译： 描述了拉曼成像和感测装置。 该装置采用纳米天线结构，其包括与金属表面或颗粒间隔开的金属尖端。 光束撞击纳米天线并引起等离子体共振。 等离子体共振激发样品，导致样品的拉曼散射显着增加。 通过分光光度计收集拉曼散射，其提供指示样品组成的输出信号。

    Near field raman imaging
    6.
    发明授权
    Near field raman imaging 有权
    近场拉曼成像

    公开(公告)号：US08599489B2

    公开(公告)日：2013-12-03

    申请号：US12449604

    申请日：2008-02-26

    申请人： Vladimir M. Shalaev ,  Alexander P. Kildishev ,  Vladimir P. Drachev ,  Wenshan Cai

    发明人： Vladimir M. Shalaev ,  Alexander P. Kildishev ,  Vladimir P. Drachev ,  Wenshan Cai

    IPC分类号： G02B3/12 ,  G02B3/00

    CPC分类号： G02B3/02 ,  B82Y20/00 ,  G02B1/007 ,  G02B21/02

    摘要： A tunable super-lens (TSL) for nanoscale optical sensing and imaging of bio-molecules and nano-manufacturing utilizes negative-index materials (NIMs) that operate in the visible or near infrared light. The NIMs can create a lens that will perform sub-wavelength imaging, enhanced resolution imaging, or flat lens imaging. This new TSL covers two different operation scales. For short distances between the object and its image, a near-field super-lens (NFSL) can create or enhance images of objects located at distances much less than the wavelength of light. For the far-zone, negative values are necessary for both the permittivity ∈ a permeability μ. While well-structured periodic meta-materials, which require delicate design and precise fabrication, can be used, metal-dielectric composites are also candidates for NIMs in the optical range. The negative-refraction in the composite films can be made by using frequency-selective photomodification.

    摘要翻译： 用于纳米尺度光学感测和生物分子和纳米制造成像的可调超透镜（TSL）利用在可见光或近红外光下工作的负指数材料（NIM）。 NIM可以创建将执行亚波长成像，增强分辨率成像或平面透镜成像的镜头。 这个新的TSL涵盖两个不同的操作规模。 对于物体与其图像之间的距离较短，近场超透镜（NFSL）可以创建或增强距离远于光波长的距离的物体的图像。 对于远区，对于介电常数E为渗透率μ而言，负值是必需的。 虽然可以使用需要精细设计和精确制造的良好结构的周期性超常材料，但是金属 - 介电复合材料也是光学范围中NIM的候选者。 复合膜中的负折射可以通过使用频率选择性光改性来制造。

    Anisotropic metamaterials emulated by tapered waveguides: application to electromagnetic cloaking
    7.
    发明授权
    Anisotropic metamaterials emulated by tapered waveguides: application to electromagnetic cloaking 失效
    锥形波导模拟的各向异性材料：应用于电磁遮蔽

    公开(公告)号：US08509578B2

    公开(公告)日：2013-08-13

    申请号：US12773528

    申请日：2010-05-04

    申请人： Igor I. Smolyaninov ,  Vera N. Smolyaninova ,  Alexander V. Kildishev ,  Vladimir M. Shalaev

    发明人： Igor I. Smolyaninov ,  Vera N. Smolyaninova ,  Alexander V. Kildishev ,  Vladimir M. Shalaev

    IPC分类号： G02B6/32 ,  G02B6/10

    CPC分类号： G02B6/10 ,  G02B1/002 ,  G02B6/1228

    摘要： A method for carrying out electromagnetic cloaking using metamaterial devices requiring anisotropic dielectric permittivity and magnetic permeability may be emulated by specially designed tapered waveguides. This approach leads to low-loss, broadband performance in the visible frequency range, which is difficult to achieve by other means. We apply this technique to electromagnetic cloaking. A broadband, two-dimensional, electromagnetic cloaking is demonstrated in the visible frequency range on a scale ˜100 times the wavelength. Surprisingly, the classic geometry of Newton rings is suited for an experimental demonstration of this effect.

    摘要翻译： 通过特殊设计的锥形波导可以模拟使用需要各向异性介电常数和磁导率的超材料装置进行电磁遮蔽的方法。 这种方法导致可见频率范围内的低损耗，宽带性能，这是难以通过其他方式实现的。 我们将这种技术应用于电磁遮掩。 在可见的频率范围内以100倍的波长示出了宽带，二维电磁遮蔽。 令人惊讶的是，牛顿环的经典几何形状适合于这种效果的实验演示。

    System, method and apparatus for modifying the visibility properties of an object
    8.
    发明授权
    System, method and apparatus for modifying the visibility properties of an object 有权
    用于修改对象的可见性的系统，方法和装置

    公开(公告)号：US08488247B2

    公开(公告)日：2013-07-16

    申请号：US12573610

    申请日：2009-10-05

    申请人： Wenshan Cai ,  Vladimir M. Shalaev ,  Uday K. Chettiar ,  Alexander V. Kildishev

    发明人： Wenshan Cai ,  Vladimir M. Shalaev ,  Uday K. Chettiar ,  Alexander V. Kildishev

    IPC分类号： G02B9/00 ,  G02B13/00

    CPC分类号： H01Q17/00 ,  F41H3/00 ,  H01Q15/0086

    摘要： An object is disposed such that the apparatus is between the object and an observer. The appearance of the object is altered and, in the limit, the object cannot be observed, and the background appears unobstructed. The apparatus is formed of a metamaterial where the properties of the metamaterial are varied as a function of distance from the interfaces. The metamaterial may be fabricated as a composite material having a dielectric component and inclusions of particles of sub-wavelength size, and may also include a gain medium.

    摘要翻译： 物体被设置成使得设备在物体和观察者之间。 对象的外观被改变，在极限情况下，对象不能被观察到，并且背景看起来不受阻碍。 该设备由超材料形成，其中超材料的性质随着与界面的距离而变化。 超材料可以制造为具有介电成分和亚波长尺寸的颗粒的夹杂物的复合材料，并且还可以包括增益介质。

    Planar lens
    9.
    发明授权
    Planar lens 有权
    平面镜头

    公开(公告)号：US08094378B2

    公开(公告)日：2012-01-10

    申请号：US12605021

    申请日：2009-10-23

    申请人： Alexander V. Kildishev ,  Vladimir M. Shalaev

    发明人： Alexander V. Kildishev ,  Vladimir M. Shalaev

    IPC分类号： G02B3/00 ,  G02B5/00 ,  G02F1/00

    CPC分类号： G02B5/008 ,  G02B5/1809 ,  Y10S428/91 ,  Y10S428/913 ,  Y10S977/701 ,  Y10S977/707 ,  Y10S977/963

    摘要： A design method, apparatus, and fabrication method for structures for controlling the flow of electromagnetic energy at a sub-wavelength scale is disclosed. Transformational optics principles are used as a starting point for the design of structures that operate as, for example, hyperlenses or concentrators such that evanescent waves at a first surface are radiated in the far field at a second surface. Plane waves incident at a first surface may be focused to a spot size substantially smaller than a wavelength, so as to interact with objects at the focal point, or be re-radiated.

    摘要翻译： 公开了一种用于控制亚波长范围内的电磁能量流的结构的设计方法，装置和制造方法。 变换光学原理被用作为例如超透镜或聚光器的结构设计的起始点，使得第一表面处的ev逝波在第二表面的远场辐射。 入射在第一表面处的平面波可以被聚焦到基本上小于波长的光斑尺寸，以便与焦点处的物体相互作用或被重新辐射。

    SINGLE-PHOTON GENERATOR AND METHOD OF ENHANCEMENT OF BROADBAND SINGLE-PHOTON EMISSION
    10.
    发明申请
    SINGLE-PHOTON GENERATOR AND METHOD OF ENHANCEMENT OF BROADBAND SINGLE-PHOTON EMISSION 审中-公开
    单光子发生器和宽光带单光子发射增强方法

    公开(公告)号：US20130056704A1

    公开(公告)日：2013-03-07

    申请号：US13459623

    申请日：2012-04-30

    申请人： Vladimir M. Shalaev ,  Eric Kochman ,  Andrey N. Smolyaninov

    发明人： Vladimir M. Shalaev ,  Eric Kochman ,  Andrey N. Smolyaninov

    IPC分类号： H01L33/06 ,  B82Y20/00

    CPC分类号： H04B10/70 ,  B82Y20/00

    摘要： A single-photon generator contains nitrogen-vacancies or other color centers in diamond as emitters of single photons which are excited by the laser beam or another optical source and can work stably under normal conditions, the metamaterial with hyperbolic dispersion as enhancing environment, and photonic guiding structure to collect and transmit single photons further. Single photons generators are fundamental elements for quantum information technologies such as quantum cryptography, quantum information storage and optical quantum computing

    摘要翻译： 单光子发生器在金刚石中含有氮空位或其他颜色中心，作为由激光束或另一光源激发的单个光子的发射体，并且可以在正常条件下稳定工作，具有双曲线色散作为增强环境的超材料和光子 引导结构进一步收集和传输单光子。 单光子发生器是量子信息技术的基本要素，如量子密码学，量子信息存储和光量子计算