Linearized optical sampler
    1.
    发明授权

    公开(公告)号:US5955875A

    公开(公告)日:1999-09-21

    申请号:US792551

    申请日:1997-01-31

    IPC分类号: G02F1/21 G11C13/04 G02F1/035

    CPC分类号: G11C13/047 G02F2001/212

    摘要: A linearized optical sampler is described. The optical sampler includes an electro-optic modulator having an optical signal input, an electrical signal input, and at least two optical signal outputs that generate at least two modulated optical signals. The optical sampler also includes at least two detectors each of which being optically coupled to a respective one of the at least two modulated optical signals. Each detector generates an electrical signal in response to an optical intensity of the respective one of the at least two modulated optical signals. The optical sampler also includes a signal processor electrically connected to each of the at least two detectors. The signal processor applies an inverse transform of the modulator transfer function. The signal processor also generates an electrical signal from the electrical signals generated by the detectors and from the inverse transform that is linearly related to an RF signal electrically that is coupled to the electrical signal input.

    Linearized optical sampler
    2.
    发明授权
    Linearized optical sampler 失效
    线性化光学取样器

    公开(公告)号:US6028424A

    公开(公告)日:2000-02-22

    申请号:US286950

    申请日:1999-04-06

    IPC分类号: G02F1/21 G11C13/04 G02F1/035

    CPC分类号: G11C13/047 G02F2001/212

    摘要: A linearized optical sampler is described. The optical sampler includes an electro-optic modulator having an optical signal input, an electrical signal input, and at least two optical signal outputs that generate at least two modulated optical signals. The optical sampler also includes at least two detectors each of which being optically coupled to a respective one of the at least two modulated optical signals. Each detector generates an electrical signal in response to an optical intensity of the respective one of the at least two modulated optical signals. The optical sampler also includes a signal processor electrically connected to each of the at least two detectors. The signal processor applies an inverse transform of the modulator transfer function. The signal processor also generates an electrical signal from the electrical signals generated by the detectors and from the inverse transform that is linearly related to an RF signal electrically that is coupled to the electrical signal input.

    摘要翻译: 描述线性化光学取样器。 光采样器包括具有光信号输入,电信号输入和至少两个产生至少两个调制光信号的光信号输出的电光调制器。 光采样器还包括至少两个检测器,每个检测器光耦合到至少两个调制光信号中的相应一个。 每个检测器响应于至少两个调制光信号中的相应一个的光强度而产生电信号。 光采样器还包括电连接到至少两个检测器中的每一个的信号处理器。 信号处理器应用调制器传递函数的逆变换。 信号处理器还从由检测器产生的电信号以及与电耦合到电信号输入的RF信号线性相关的逆变换产生电信号。

    Field emitters of wide-bandgap materials and methods for their
fabrication
    3.
    发明授权
    Field emitters of wide-bandgap materials and methods for their fabrication 失效
    宽带隙材料的场发射体及其制造方法

    公开(公告)号:US5713775A

    公开(公告)日:1998-02-03

    申请号:US432848

    申请日:1995-05-02

    摘要: Improved field-emission devices are based on composing the back contact to the emitter material such that electron-injection efficiency into the emitter material is enhanced. Alteration of the emitter material structure near the contact or geometric field enhancement due to contact morphology gives rise to the improved injection efficiency. The devices are able to emit electrons at high current density and lower applied potential differences and temperatures than previously achieved. Wide-bandgap emitter materials without shallow donors benefit from this approach. The emission characteristics of diamond substitutionally doped with nitrogen, having a favorable emitter/vacuum band structure but being limited by the efficiency of electron injection into it, show especial improvement in the context of the invention. The injection-enhancing contacts can be created by combining the emitter material with an appropriate metal compound and annealing or by conventional dry anisotropic etching or ion bombardment techniques.

    摘要翻译: 改进的场致发射器件基于构成与发射极材料的背接触,使得增加到发射极材料中的电子注入效率。 由接触形态引起的接触或几何场增强附近的发射极材料结构的改变提高了注入效率的提高。 器件能够以高电流密度发射电子,并且能够比以前实现的更低的施加电位差和温度。 没有浅供体的宽带隙发射体材料受益于这种方法。 替代地掺杂有氮的金刚石的发射特性具有良好的发射极/真空带结构但被电子注入的效率所限制,在本发明的上下文中显示出特别的改进。 注入增强触点可以通过将发射极材料与适当的金属化合物组合并进行退火或通过常规的干各向异性蚀刻或离子轰击技术来产生。

    Surface-emission cathodes
    4.
    发明授权
    Surface-emission cathodes 失效
    表面发射阴极

    公开(公告)号:US5973451A

    公开(公告)日:1999-10-26

    申请号:US794361

    申请日:1997-02-04

    IPC分类号: H01J1/30

    CPC分类号: H01J1/30

    摘要: The surface-emission cathodes of the invention are constructed so that the cathode body has a free surface over which electrons are efficiently accelerated after injection from a conductive contact. The junction between the free surface and the contact has the property that the height of the barrier to tunneling from the contact to floating surface states associated with the free surface of the cathode body is lower than both the barrier to emission from the contact to vacuum and the barrier to injection from the contact into the conduction band of the cathode body material. Thus under an applied potential, electrons are injected from the contact into floating surface states associated with the free surface. After acceleration, electrons leave the free surface, either emitted to vacuum or injected into another medium.

    摘要翻译: 本发明的表面发射阴极被构造成使得阴极体具有自由表面,电子在从导电接触点注入之后被有效地加速。 自由表面和接触之间的接合点具有这样的特性,即从接触到与阴极体的自由表面相关联的浮动表面状态的穿透的屏障的高度低于从接触到真空的发射屏障, 从触点注入阴极体材料的导带的阻挡层。 因此,在施加电位下,电子从触点注入与自由表面相关的浮动表面状态。 加速后,电子离开自由表面,发射到真空或注入另一种介质。

    High-speed, high-sensitivity charge-coupled device with independent pixel control of charge collection and storage
    7.
    发明授权
    High-speed, high-sensitivity charge-coupled device with independent pixel control of charge collection and storage 有权
    高速,高灵敏度的电荷耦合器件,具有独立的像素控制电荷收集和存储

    公开(公告)号:US07091530B1

    公开(公告)日:2006-08-15

    申请号:US10612174

    申请日:2003-07-02

    IPC分类号: H01L27/148

    摘要: A charge-coupled device imager including an array of super pixels disposed in a semiconductor substrate having a surface that is accessible to incident illumination. For each super pixel there is provided a plurality of subpixels which each correspond to one in the sequence of image frames. Each subpixel includes a doped photogenerated charge collection channel region opposite the illumination-accessible substrate surface, a charge collection channel region control electrode, doped charge drain regions adjacent to the channel region, a charge drain region control electrode, and a doped charge collection control region. To each subpixel are provided channel region and drain region control voltage connections, for independent collection and storage of photogenerated charge from the substrate at the charge collection channel region of a selected subpixel during one in the sequence of image frames and for drainage of photogenerated charge from the substrate to a drain region.

    摘要翻译: 一种电荷耦合器件成像器,其包括设置在半导体衬底中的超像素阵列,该半导体衬底具有可入射照明的表面。 对于每个超像素,提供多个子像素,每个子像素对应于图像帧序列中的一个。 每个子像素包括与照明可访问衬底表面相对的掺杂光生电荷收集通道区域,电荷收集通道区域控制电极,与沟道区相邻的掺杂电荷漏极区,电荷漏极区控制电极和掺杂电荷收集控制区 。 每个子像素都提供了沟道区域和漏极区域控制电压连接,用于在图像帧序列中的一个期间,从所选择的子像素的电荷收集通道区域处的基底在基底处独立收集和存储光生电荷,并且将光生电荷从 衬底到漏区。

    Field emmitters of wide-bandgap materials
    10.
    发明授权
    Field emmitters of wide-bandgap materials 失效
    宽带隙材料的场发射器

    公开(公告)号:US5990604A

    公开(公告)日:1999-11-23

    申请号:US17361

    申请日:1998-02-02

    摘要: Improved field-emission devices are based on composing the back contact to the emitter material such that electron-injection efficiency into the emitter material is enhanced. Alteration of the emitter material structure near the contact or geometric field enhancement due to contact morphology gives rise to the improved injection efficiency. The devices are able to emit electrons at high current density and lower applied potential differences and temperatures than previously achieved. Wide-bandgap emitter materials without shallow donors benefit from this approach. The emission characteristics of diamond substitutionally doped with nitrogen, having a favorable emitter/vacuum band structure but being limited by the efficiency of electron injection into it, show especial improvement in the context of the invention. The injection-enhancing contacts can be created by combining the emitter material with an appropriate metal compound and annealing or by conventional dry anisotropic etching or ion bombardment techniques.

    摘要翻译: 改进的场致发射器件基于构成与发射极材料的背接触,使得增加到发射极材料中的电子注入效率。 由接触形态引起的接触或几何场增强附近的发射极材料结构的改变提高了注入效率的提高。 器件能够以高电流密度发射电子,并且能够比以前实现的更低的施加电位差和温度。 没有浅供体的宽带隙发射体材料受益于这种方法。 替代地掺杂有氮的金刚石的发射特性具有良好的发射极/真空带结构但被电子注入的效率所限制,在本发明的上下文中显示出特别的改进。 注入增强触点可以通过将发射极材料与适当的金属化合物组合并进行退火或通过常规的干各向异性蚀刻或离子轰击技术来产生。