Structure and method for modulating light
    62.
    发明申请
    Structure and method for modulating light 有权
    调制光的结构和方法

    公开(公告)号:US20080266640A1

    公开(公告)日:2008-10-30

    申请号:US11789816

    申请日:2007-04-26

    IPC分类号: G02F1/23 G02F1/017 G02F1/19

    摘要: A structure includes a film having a plurality of nanoapertures and a semiconductor layer in connection with the film. The nanoapertures are configured to allow the transmission of a predetermined subwavelength of light through the film via the plurality of nanoapertures. The semiconductor layer facilitates the modulation of the predetermined subwavelength of light transmitted through the film. The structure also includes a carrier generator for modulating the predetermined subwavelength of light by generating charge carriers

    摘要翻译: 一种结构包括具有多个纳米孔径的膜和与膜相关的半导体层。 纳米孔径被配置为允许经由多个纳米孔径传输预定亚波长的光穿过膜。 半导体层有助于调制透过薄膜的光的预定亚波长。 该结构还包括载波发生器,用于通过产生电荷载流子来调制预定的亚波长的光

    Multi-emitter image formation with reduced speckle
    63.
    发明申请
    Multi-emitter image formation with reduced speckle 审中-公开
    具有减少斑点的多发射体图像形成

    公开(公告)号:US20080095203A1

    公开(公告)日:2008-04-24

    申请号:US11584475

    申请日:2006-10-19

    IPC分类号: H01S3/10

    CPC分类号: H04N9/3129 H01S5/423

    摘要: A technique for reducing speckle in a projected image includes forming an image using a plurality of laser light emitters. An input to the plurality of laser light emitters is non-mechanically perturbed to a degree sufficient to disrupt wavefront uniformity across the array of laser light emitters.

    摘要翻译: 用于减少投影图像中的斑点的技术包括使用多个激光发射器形成图像。 多个激光发射器的输入被非机械地扰动到足以破坏激光发射器阵列上的波前均匀性的程度。

    Optical steering device and method
    64.
    发明授权
    Optical steering device and method 有权
    光转向装置及方法

    公开(公告)号:US07359111B1

    公开(公告)日:2008-04-15

    申请号:US11651315

    申请日:2007-01-08

    IPC分类号: G02F1/35 G02F2/02

    CPC分类号: G02F1/29 G02F1/37 G02F2202/32

    摘要: An optical device for steering radiation comprises a superprism structure a negative index of refraction for electromagnetic radiation having a frequency of 2ω only, and a photon upconversion structure disposed to upconvert a portion of incident electromagnetic radiation having a frequency of ω to electromagnetic radiation having a frequency of 2ω and to couple a portion of the incident electromagnetic radiation having a frequency ω and the upconverted electromagnetic radiation having a frequency of 2ω into the superprism structure.

    摘要翻译: 用于转向辐射的光学装置包括对仅具有2omega频率的电磁辐射的负折射率的超混合结构,以及被设置为将具有ω的频率的入射电磁辐射的一部分上变频到具有频率的电磁辐射的超混合结构 并且将具有频率ω的入射电磁辐射的一部分和具有2omega频率的上变频电磁辐射耦合到超微结构中。

    Method and apparatus for electromagnetic resonance and amplification using negative index material
    65.
    发明授权
    Method and apparatus for electromagnetic resonance and amplification using negative index material 有权
    使用负指数材料进行电磁共振和放大的方法和装置

    公开(公告)号:US07352941B2

    公开(公告)日:2008-04-01

    申请号:US11590410

    申请日:2006-10-31

    摘要: An electromagnetic resonance device includes an input reflector, an output reflector, and a negative index material (NIM) disposed between the input reflector and the output reflector. The input reflector and output reflector are configured to be reflective to radiation having a wavelength of interest. The NIM is configured to have a negative refraction at the wavelength of interest. A first radiation is reflected by the input reflector toward the first surface of the NIM, passes through the NIM, and is focused on the output reflector as a second radiation. The second radiation is reflected by the output reflector toward the second surface of the NIM, passes through the NIM, and is focused on the input reflector as the first radiation. A gain medium may be included to amplify the first radiation and the second radiation to generate a laser radiation.

    摘要翻译: 电磁共振装置包括设置在输入反射器和输出反射器之间的输入反射器,输出反射器和负指数材料(NIM)。 输入反射器和输出反射器被配置为反射具有感兴趣波长的辐射。 NIM被配置为在感兴趣的波长处具有负折射。 第一辐射由输入反射器朝向NIM的第一表面反射,穿过NIM,并且作为第二辐射聚焦在输出反射器上。 第二辐射由输出反射器朝向NIM的第二表面反射,穿过NIM,并且作为第一辐射聚焦在输入反射器上。 可以包括增益介质以放大第一辐射和第二辐射以产生激光辐射。

    Binary arrays of nanoparticles for nano-enhanced Raman scattering molecular sensors
    66.
    发明授权
    Binary arrays of nanoparticles for nano-enhanced Raman scattering molecular sensors 有权
    用于纳米增强拉曼散射分子传感器的二元纳米颗粒阵列

    公开(公告)号:US07292334B1

    公开(公告)日:2007-11-06

    申请号:US11090352

    申请日:2005-03-25

    IPC分类号: G01J3/44

    CPC分类号: G01N21/658

    摘要: 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.

    摘要翻译: 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。

    Polarized radiation source using spin extraction/injection
    67.
    发明授权
    Polarized radiation source using spin extraction/injection 失效
    使用旋转萃取/注射的极化辐射源

    公开(公告)号:US07208775B2

    公开(公告)日:2007-04-24

    申请号:US11061060

    申请日:2005-02-18

    IPC分类号: H01L33/00

    摘要: Spin-polarized electrons can be efficiently extracted from an n-doped semiconductor layer (n-S) by forming a modified Schottky contact with a ferromagnetic material (FM) and a δ-doped layer at an interface under forward bias voltage conditions. Due to spin-selection property of the FM-S junction, spin-polarized carriers appear in the n-doped semiconductor layer near the FM-S interface. If a FM-n-n′-p heterostructure is formed, where the n′ region is a narrower gap semiconductor, polarized electrons from the n-S region and holes from the p-S region can diffuse into the n′-S region under the influence of independent voltages applied between the FM and n′ regions and the n′ and p regions. The polarized electrons and holes recombine in the n′-S region and produce polarized light. The polarization can be controlled and modulated by controlling the applied voltages.

    摘要翻译: 通过在正向偏压条件下在界面处形成与铁磁材料(FM)和δ掺杂层的改性肖特基接触,可以从n掺杂半导体层(n-S)有效地提取自旋极化电子。 由于FM-S结的自旋选择性质,自旋极化载流子出现在FM-S界面附近的n掺杂半导体层中。 如果形成FM-n-n'-p异质结构,其中n'区域是较窄的间隙半导体,则来自nS区域的极化电子和来自pS区域的空穴可以扩散到n'-S区域的影响下 在FM和n'区域以及n'和p区域之间施加独立电压。 极化的电子和空穴在n'-S区域复合并产生偏振光。 可以通过控制施加的电压来控制和调制极化。

    Magnetic sensor based on efficient spin injection into semiconductors
    68.
    发明授权
    Magnetic sensor based on efficient spin injection into semiconductors 失效
    基于有效自旋注入半导体的磁传感器

    公开(公告)号:US07094610B2

    公开(公告)日:2006-08-22

    申请号:US10879649

    申请日:2004-06-28

    IPC分类号: H01L29/76 G11C11/34

    CPC分类号: G01R33/06 Y10T428/32

    摘要: A magnetic sensor using efficient injection of spin polarized electrons at room temperature can be fabricated by forming a semiconductor layer sandwiched between ferromagnets and forming δ-doped layers between the semiconductor layer and the ferromagnets. A sensing method applies a magnetic field to be measured to the semiconductor layer and observes the conductivity of the sensor. The sensing techniques can achieve high magneto-sensitivity and very high operating speed, which in turn provides ultra fast and sensitive magnetic sensors.

    摘要翻译: 可以通过在半导体层和铁磁体之间形成夹在铁磁体之间并形成δ-掺杂层的半导体层来制造在室温下有效地注入自旋极化电子的磁传感器。 感测方法将要测量的磁场施加到半导体层并观察传感器的电导率。 感测技术可以实现高磁敏感和非常高的操作速度,从而提供超快速和灵敏的磁传感器。

    Magnetic sensor based on efficient spin injection into semiconductors
    69.
    发明授权
    Magnetic sensor based on efficient spin injection into semiconductors 失效
    基于有效自旋注入半导体的磁传感器

    公开(公告)号:US07087971B2

    公开(公告)日:2006-08-08

    申请号:US10880058

    申请日:2004-06-28

    IPC分类号: H01L29/76 G11C11/34

    CPC分类号: G01R33/06 Y10T428/32

    摘要: A magnetic sensor based on efficient spin injection of spin-polarized electrons from ferromagnets into semiconductors and rotation of electron spin under a magnetic field. Previous spin injection structures suffered from very low efficiency (less than 5). A spin injection device with a semiconductor layer sandwiched between δ-doped layers and ferromagnets allows for very high efficient (close to 100%) spin polarization to be achieved at room temperature, and allows for high magneto-sensitivity and very high operating speed, which in turn allows devising ultra fast and sensitive magnetic sensors.

    摘要翻译: 一种基于从铁磁体到半导体的自旋极化电子自旋注入和在磁场下旋转电子自旋的磁传感器。 先前的自旋注射结构的效率非常低(小于5)。 具有夹在δ-掺杂层和铁磁体之间的半导体层的自旋注入装置允许在室温下实现非常高效(接近100%)的自旋极化,并且允许高的磁敏感性和非常高的操作速度,其中 反过来允许设计超快速和敏感的磁性传感器。

    Amplifiers using spin injection and magnetic control of electron spins
    70.
    发明授权
    Amplifiers using spin injection and magnetic control of electron spins 有权
    使用自旋注入和电子自旋磁控制的放大器

    公开(公告)号:US06879013B2

    公开(公告)日:2005-04-12

    申请号:US10632038

    申请日:2003-07-30

    摘要: Ultrafast solid state amplifiers of electrical current, including power amplification devices, use injection of spin-polarized electrons from a magnetic region into another magnetic region through a semiconductor control region and electron spin precession inside the control region induced by a magnetic field resulting from a current flowing through a conductive nanowire. The amplifiers may include magnet-semiconductor-magnet heterostructures and are able to operate on electric currents and electromagnetic waves having frequencies up to 100 GHz or more.

    摘要翻译: 包括功率放大装置的电流的超快固态放大器使用通过半导体控制区域将磁极区域的自旋极化电子注入另一个磁区域,并由电流产生的磁场引起的电子自旋进动 流过导电纳米线。 放大器可以包括磁体 - 半导体 - 磁体异质结构,并且能够对频率高达100GHz或更高的电流和电磁波进行操作。