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公开(公告)号：US5880478A
公开(公告)日：1999-03-09
申请号：US859781
申请日：1997-05-19
CPC分类号： G21K1/06 , G21K2201/068
摘要： The specification describes a refractive lens for focusing cold neutrons. It comprises a plurality of concave lens elements made from materials with low neutron absorption.
摘要翻译： 本说明书描述了用于聚焦冷中子的折射透镜。 它包括由具有低中子吸收的材料制成的多个凹透镜元件。
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公开(公告)号：US06661392B2
公开(公告)日：2003-12-09
申请号：US10090106
申请日：2002-03-04
IPC分类号： H01Q1508
CPC分类号： H01Q15/08 , H01Q9/0485 , H01Q13/28
摘要： An apparatus includes an object and one or more sensors located adjacent to or in the object. The object is formed of a material whose dielectric constant or magnetic permeability has a negative real part at microwave-frequencies. The one or more sensors are located adjacent to or in the object and measure an intensity of an electric or a magnetic field therein.
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公开(公告)号：US06993216B2
公开(公告)日：2006-01-31
申请号：US10769713
申请日：2004-01-31
IPC分类号： G02B6/26
CPC分类号： G02F1/3137 , G02F1/3515 , G02F2202/32 , G02F2203/055 , G02F2203/585
摘要： An optical device provides optical routing functions, such as switching or redirecting of optical signals. The device utilizes one or more control light beams, which couple through a top surface of a planar substrate (via relatively small control windows) into one or more preselected regions of optical channels formed in the substrate. The presence of a control light beam at a control window increases the refractive index of the nonlinear optical medium of a portion of a channel. The portion of the channel includes a structure that functions as an on/off filter to reflect or transmit an optical signal propagating in the channel in a manner that is responsive to the intensity of the control light beam applied to the portion of the channel. In some embodiments, the optical channels interrupt a 2D PBG structure, which functions as a boundary for the optical channels.
摘要翻译： 光学设备提供光路由功能，例如光信号的切换或重定向。 该装置利用一个或多个控制光束，其通过平面基板的顶表面（经由相对小的控制窗口）耦合到形成在基板中的光学通道的一个或多个预选区域中。 控制窗口处的控制光束的存在增加了通道的一部分的非线性光学介质的折射率。 通道的部分包括用作开/关滤波器的结构，以响应于施加到通道部分的控制光束的强度的方式来反射或传输在通道中传播的光信号。 在一些实施例中，光通道中断作为光通道的边界的2D PBG结构。
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公开(公告)号：US20100053763A1
公开(公告)日：2010-03-04
申请号：US12229866
申请日：2008-08-27
IPC分类号： G02B1/00
CPC分类号： B82Y20/00 , G02B1/002 , G02B6/1225 , G02B2006/12147 , G02F1/353 , G02F2202/30 , H01Q15/0026 , H01Q15/0086
摘要： An apparatus includes a medium that is a metamaterial over a frequency range. The medium includes a stack of layers or slabs. A mechanical, electrical, or magnetic property of the layers or slabs of the stack varies monotonically between neighboring ones of the layers or slabs.
摘要翻译： 一种装置包括在频率范围上是超材料的介质。 介质包括一叠层或板。 堆叠的层或板的机械，电或或磁性质在相邻的层或板之间单调地变化。
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公开(公告)号：US06697542B2
公开(公告)日：2004-02-24
申请号：US09752634
申请日：2000-12-29
IPC分类号： G02F1295
CPC分类号： G02F1/3137 , G02F1/3515 , G02F2202/32 , G02F2203/055 , G02F2203/585
摘要： An optical device provides optical routing functions, such as switching or redirecting of optical signals. The device utilizes one or more control light beams, which couple through a top surface of a planar substrate (via relatively small control windows) into one or more preselected regions of optical channels formed in the substrate. The presence of a control light beam at a control window increases the refractive index of the nonlinear optical medium of a portion of a channel. The portion of the channel includes a structure that functions as an on/off filter to reflect or transmit an optical signal propagating in the channel in a manner that is responsive to the intensity of the control light beam applied to the portion of the channel. In some embodiments, the optical channels interrupt a 2D PBG structure, which functions as a boundary for the optical channels.
摘要翻译： 光学设备提供光路由功能，例如光信号的切换或重定向。 该装置利用一个或多个控制光束，其通过平面基板的顶表面（经由相对小的控制窗口）耦合到形成在基板中的光学通道的一个或多个预选区域中。 控制窗口处的控制光束的存在增加了通道的一部分的非线性光学介质的折射率。 通道的部分包括用作开/关滤波器的结构，以响应于施加到通道部分的控制光束的强度的方式来反射或传输在通道中传播的光信号。 在一些实施例中，光通道中断作为光通道的边界的2D PBG结构。
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公开(公告)号：US07848026B2
公开(公告)日：2010-12-07
申请号：US12229866
申请日：2008-08-27
CPC分类号： B82Y20/00 , G02B1/002 , G02B6/1225 , G02B2006/12147 , G02F1/353 , G02F2202/30 , H01Q15/0026 , H01Q15/0086
摘要： An apparatus includes a medium that is a metamaterial over a frequency range. The medium includes a stack of layers or slabs. A mechanical, electrical, or magnetic property of the layers or slabs of the stack varies monotonically between neighboring ones of the layers or slabs.
摘要翻译： 一种装置包括在频率范围上是超材料的介质。 介质包括一叠层或板。 堆叠的层或板的机械，电或或磁性质在相邻的层或板之间单调地变化。
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公开(公告)号：US5847442A
公开(公告)日：1998-12-08
申请号：US748035
申请日：1996-11-12
IPC分类号： H01L27/10 , G11C17/00 , G11C17/10 , H01L27/112 , H01L29/00
CPC分类号： G11C17/10 , G11C11/5692 , H01L27/112 , G11C2213/77
摘要： A read-only memory having sets of word lines and bit lines orthogonal to each other and separated by an insulator. At specific cell sites, selected by a memory algorithm, a word line is connected to bit lines by a doped or undoped polysilicon data resistor. The use of a data resistor, rather the an active device such as a MOSFET, provides a saving in space by a factor of four. The polysilicon data resistor may have a range of values, the minimum of which is determined by the number of cell sites and the resistance of the word and bit lines. The maximum value of the data resistor is determined by thermal noise considerations. Within this range, the data resistors may also have discrete values so that more than one data level may be stored at a cell site, to provide even greater storage density.
摘要翻译： 一种只读存储器，其具有彼此正交并由绝缘体隔开的字线和位线组。 在通过存储算法选择的特定单元位置，字线通过掺杂或未掺杂的多晶硅数据电阻器连接到位线。 使用数据电阻器，而不是诸如MOSFET的有源器件，可以将空间节省4倍。 多晶硅数据电阻器可以具有值的范围，其最小值由单元位置的数量和字和位线的电阻确定。 数据电阻的最大值由热噪声考虑决定。 在该范围内，数据电阻器还可以具有离散值，使得可以在单元位置存储多于一个的数据电平，以提供更大的存储密度。
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