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    • 41. 发明申请
    • Memcapacitor
    • 电容器
    • US20120039114A1
    • 2012-02-16
    • US13256245
    • 2009-06-18
    • Alexandre BratkovskiR. Stanley Williams
    • Alexandre BratkovskiR. Stanley Williams
    • G11C11/24
    • G11C11/24G11C13/0002H01G4/1272H01G4/255H01G4/33H01L27/101H01L28/40
    • A memcapacitor device (100) includes a first electrode (104) and a second electrode (106) and a memcapacitive matrix (102) interposed between the first electrode (104) and the second electrode (106). Mobile dopants (111) are contained within the memcapacitive matrix (102) and are repositioned within the memcapacitive matrix (102) by the application of a programming voltage (126) across the first electrode (104) and second electrode (106) to alter the capacitance of the memcapacitor (100). A method for utilizing a memcapacitive device (100) includes applying a programming voltage (126) across a memcapacitive matrix (102) such that mobile ions (111) contained within a memcapacitive matrix (102) are redistributed and alter a capacitance of the memcapacitive device (100), then removing the programming voltage (126) and applying a reading voltage to sense the capacitance of the memcapacitive device (100).
    • 电容器装置(100)包括插入在第一电极(104)和第二电极(106)之间的第一电极(104)和第二电极(106)和存储电容矩阵(102)。 移动掺杂剂(111)被包含在存储器电容矩阵(102)内,并且通过跨越第一电极(104)和第二电极(106)施加编程电压(126)而重新定位在存储电容矩阵(102)内,以改变 电容器(100)的电容。 一种利用存储电容器件(100)的方法包括跨越存储电容矩阵(102)应用编程电压(126),使得包含在存储电容矩阵(102)内的移动离子(111)被重新分配并改变存储器件的电容 (100),然后去除所述编程电压(126)并施加读取电压以感测所述存储器件(100)的电容。
    • 45. 发明授权
    • Molecular devices activated by an electric field for electronic ink and other visual display
    • 通过电场激活的分子器件用于电子墨水等视觉显示
    • US06805817B2
    • 2004-10-19
    • US09932186
    • 2001-08-17
    • Xiao-An ZhangAlexandre BratkovskiYong ChenR. Stanley WilliamsKent D. Vincent
    • Xiao-An ZhangAlexandre BratkovskiYong ChenR. Stanley WilliamsKent D. Vincent
    • H01B112
    • G11C13/0014B82Y10/00C09D11/03C09D11/50C09K9/02G02B26/026G02F1/15G02F1/17G02F1/174G11C13/02G11C13/04G11C23/00G11C2213/14G11C2213/77
    • An electric field activated molecular system, preferably bi-stable, configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has an electric field induced band gap change that occurs via a change (reversible or irreversible) of the extent of the electron conjugation via chemical bonding change to change the band gap, wherein in a first state, there is substantial conjugation throughout the molecular system, resulting in a relatively smaller band gap, and wherein in a second state, the substantial conjugation is destroyed, resulting in a relatively larger band gap. The changing of substantial conjugation may be accomplished in one of the following ways: (1) charge separation or recombination accompanied by increasing or decreasing electron localization in the molecule; or (2) change of substantial conjugation via charge separation or recombination and&pgr;-bond breaking or making. A primary advantage of the molecular system is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or excessive scattering from the colorant. A second advantage of the present invention is improved resolution. Finally, each molecule of the present invention will latch to stabilize one or the other of its color states.
    • 提供了在由一对电极产生的电场内配置的电场活化分子系统,优选双稳态,用于例如电子墨水或其它视觉显示器。 分子系统具有电场诱导的带隙变化,其通过经由化学键合改变的电子共轭程度的变化(可逆的或不可逆的)发生,以改变带隙,其中在第一状态下,在整个 分子系统,导致相对较小的带隙,并且其中在第二状态下,基本共轭被破坏,导致相对较大的带隙。 基本共轭的改变可以通过以下方式之一来实现:(1)伴随着分子中电子定位增加或减少的电荷分离或重组; 或(2)通过电荷分离或重组和断裂或制造改变基本共轭。 分子系统的主要优点是对比度提高。 因为本发明的着色剂是分子的,因此有效地是单面的,所以不应该有着色剂的背面反射或过度的散射。 本发明的第二个优点是分辨率提高。 最后,本发明的每个分子将锁定以稳定其一个或多个其颜色状态。
    • 46. 发明授权
    • Metamaterial-based devices and methods for fabricating the same
    • 基于超材料的器件及其制造方法
    • US08604897B1
    • 2013-12-10
    • US11881287
    • 2007-07-26
    • Alexandre BratkovskiWei Wu
    • Alexandre BratkovskiWei Wu
    • H01P7/10G01N22/00
    • G01N21/05G01N21/658
    • Various embodiments of the present invention are directed to metamaterial-based devices and to methods of fabricating metamaterial-based devices. In one embodiment, a metamaterial-based device comprises a channel layer, a top metallic layer, and a bottom metallic layer. The channel layer has a top and a bottom surfaces, and at least one channel configured to transmit at least one material. The top metallic layer has a top surface and a bottom surface attached to the top surface of the channel layer and has a first lattice of openings extending between the top and bottom surfaces of the top metallic layer. The bottom metallic layer has a top surface and a bottom surface, wherein the top surface of the bottom metallic layer is attached to the bottom surface of the channel layer.
    • 本发明的各种实施例涉及基于超材料的装置以及制造基于超材料的装置的方法。 在一个实施例中,基于超材料的器件包括沟道层,顶部金属层和底部金属层。 沟道层具有顶表面和底表面,并且至少一个通道被配置成透射至少一种材料。 顶部金属层具有附接到沟道层的顶表面的顶表面和底表面,并且具有在顶部金属层的顶表面和底表面之间延伸的第一格子。 底部金属层具有顶表面和底表面,其中底部金属层的顶表面附着到沟道层的底表面。
    • 47. 发明授权
    • Optical modulator including electrically controlled ring resonator
    • 光调制器包括电控环形谐振器
    • US07764850B2
    • 2010-07-27
    • US12243782
    • 2008-10-01
    • Alexandre BratkovskiTheodore I. Kamins
    • Alexandre BratkovskiTheodore I. Kamins
    • G02B6/26G02F1/025
    • G02F1/025G02F2203/055G02F2203/15
    • An optical modulator and related methods are described. In accordance with one embodiment, the optical modulator comprises a waveguide for guiding an optical signal, and further comprises a ring resonator disposed in evanescent communication with the waveguide for at least one predetermined wavelength of the optical signal. The optical modulator further comprises a semiconductor pnpn junction structure that is at least partially coextensive with at least a portion of a resonant light path of the ring resonator. The optical modulator is configured such that the semiconductor pnpn junction structure receives an electrical control signal thereacross. The electrical control signal controls a free carrier population in the resonant light path where coextensive with the pnpn junction structure. A resonance condition of the ring resonator at the predetermined wavelength is thereby controlled by the electrical control signal, and the optical signal is thereby modulated according to the electrical control signal.
    • 描述了光学调制器及相关方法。 根据一个实施例,光学调制器包括用于引导光学信号的波导,并且还包括环形谐振器,该环形谐振器设置成与光波导的至少一个预定波长的与波导的渐逝通信。 光调制器还包括半导体pnpn结结构,其至少部分地与环形谐振器的谐振光路的至少一部分共同延伸。 光调制器被配置为使得半导体pnpn结结构在其上接收电控信号。 电控制信号控制共振光路中与pnpn结结构共同延伸的自由载流子。 因此,通过电气控制信号控制环形谐振器在预定波长处的谐振状态,并且由此根据电气控制信号调制光信号。
    • 49. 发明申请
    • Optical Modulator Including Electrically Controlled Ring Resonator
    • 包括电子控制环谐振器的光学调制器
    • US20090190875A1
    • 2009-07-30
    • US12243782
    • 2008-10-01
    • Alexandre BratkovskiTheodore I. Kamins
    • Alexandre BratkovskiTheodore I. Kamins
    • G02F1/035H01L33/00
    • G02F1/025G02F2203/055G02F2203/15
    • An optical modulator and related methods are described. In accordance with one embodiment, the optical modulator comprises a waveguide for guiding an optical signal, and further comprises a ring resonator disposed in evanescent communication with the waveguide for at least one predetermined wavelength of the optical signal. The optical modulator further comprises a semiconductor pnpn junction structure that is at least partially coextensive with at least a portion of a resonant light path of the ring resonator. The optical modulator is configured such that the semiconductor pnpn junction structure receives an electrical control signal thereacross. The electrical control signal controls a free carrier population in the resonant light path where coextensive with the pnpn junction structure. A resonance condition of the ring resonator at the predetermined wavelength is thereby controlled by the electrical control signal, and the optical signal is thereby modulated according to the electrical control signal.
    • 描述了光学调制器及相关方法。 根据一个实施例,光学调制器包括用于引导光学信号的波导,并且还包括环形谐振器,该环形谐振器设置成与光波导的至少一个预定波长的与波导的渐逝通信。 光调制器还包括半导体pnpn结结构,其至少部分地与环形谐振器的谐振光路的至少一部分共同延伸。 光调制器被配置为使得半导体pnpn结结构在其上接收电控信号。 电控制信号控制共振光路中与pnpn结结构共同延伸的自由载流子。 因此,通过电气控制信号控制环形谐振器在预定波长处的谐振状态,并且由此根据电气控制信号调制光信号。
    • 50. 发明申请
    • BINARY ARRAYS OF NANOPARTICLES FOR NANO-ENHANCED RAMAN SCATTERING MOLECULAR SENSORS
    • 纳米增强纳米增强拉曼散射分子传感器的二元阵列
    • US20070252979A1
    • 2007-11-01
    • US11090352
    • 2005-03-25
    • Alexandre BratkovskiTheodore Kamins
    • Alexandre BratkovskiTheodore Kamins
    • G01J3/44G01N21/65
    • G01N21/658
    • A nano-enhanced Raman scattering (NERS)-active structure includes a substrate, a monolayer of nanoparticles disposed on a surface of the substrate, and a spacer material surrounding each nanoparticle in the monolayer of nanoparticles. The monolayer of nanoparticles includes a first plurality of nanoparticles and a second plurality of nanoparticles. The nanoparticles of the second plurality are interspersed among the first plurality and exhibit a plasmon frequency that differs from any plasmon frequency exhibited by the first plurality. Also described are a method for forming such a NERS-active structure and a NERS system that includes a NERS-active structure, an excitation radiation source, and a detector for detecting Raman scattered radiation.
    • 纳米增强拉曼散射(NERS)活性结构包括底物,设置在基底表面上的单层纳米颗粒,以及围绕纳米颗粒单层中的每个纳米颗粒的间隔物。 纳米颗粒的单层包括第一多个纳米颗粒和第二多个纳米颗粒。 第二多个纳米颗粒散布在第一多个中,并且表现出与第一多个表现出的任何等离子体频率不同的等离子体激元频率。 还描述了形成这样的NERS-活性结构的方法和包括NERS-活性结构,激发辐射源和用于检测拉曼散射辐射的检测器的NERS系统。