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公开(公告)号：US09228761B2
公开(公告)日：2016-01-05
申请号：US13190904
申请日：2011-07-26
IPC分类号： F24J2/06 , G02B19/00 , G01J1/04 , G01J5/08 , H01L31/054
CPC分类号： G02B19/0042 , F24S23/00 , F24S23/12 , G01J1/04 , G01J1/0407 , G01J1/0422 , G01J5/08 , G01J5/0853 , G02B19/0014 , G02B19/0038 , G02B19/0076 , H01L31/054 , H01L31/0543 , Y02E10/44 , Y02E10/52 , Y10T29/49 , Y10T428/24802 , Y10T428/24942
摘要： An electromagnetic black hole may be fabricated as concentric shells having a permittivity whose variation is at least as great as an inverse square dependence on the radius of the structure. Such a structure concentrates electromagnetic energy incident thereon over a broad range of angles to an operational region near the center of curvature of the structure. Devices or materials may be placed in the operational region so as to convert the electromagnetic energy to electrical signals or to heat. Applications included solar energy harvesting and heat signature detectors.
摘要翻译： 可以制造电磁黑洞作为具有介电常数的同心壳，其介电常数的变化至少与依赖于结构半径的平方平方相同。 这种结构将在其上的电磁能量集中在与结构的曲率中心附近的操作区域的宽范围的角度上。 设备或材料可以被放置在操作区域中，以将电磁能转换成电信号或加热。 应用包括太阳能收集和热标签检测器。
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公开(公告)号：US20120028007A1
公开(公告)日：2012-02-02
申请号：US13190904
申请日：2011-07-26
CPC分类号： G02B19/0042 , F24S23/00 , F24S23/12 , G01J1/04 , G01J1/0407 , G01J1/0422 , G01J5/08 , G01J5/0853 , G02B19/0014 , G02B19/0038 , G02B19/0076 , H01L31/054 , H01L31/0543 , Y02E10/44 , Y02E10/52 , Y10T29/49 , Y10T428/24802 , Y10T428/24942
摘要： An electromagnetic black hole may be fabricated as concentric shells having a permittivity whose variation is at least as great as an inverse square dependence on the radius of the structure. Such a structure concentrates electromagnetic energy incident thereon over a broad range of angles to an operational region near the center of curvature of the structure. Devices or materials may be placed in the operational region so as to convert the electromagnetic energy to electrical signals or to heat. Applications included solar energy harvesting and heat signature detectors.
摘要翻译： 可以制造电磁黑洞作为具有介电常数的同心壳，其介电常数的变化至少与依赖于结构半径的平方平方相同。 这种结构将在其上的电磁能量集中在与结构的曲率中心附近的操作区域的宽范围的角度上。 设备或材料可以被放置在操作区域中，以将电磁能转换成电信号或加热。 应用包括太阳能收集和热标签检测器。
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公开(公告)号：US20100110559A1
公开(公告)日：2010-05-06
申请号：US12573610
申请日：2009-10-05
CPC分类号： H01Q17/00 , F41H3/00 , H01Q15/0086
摘要： An apparatus and method of cloaking is described. An object to be cloaked is disposed such that the cloaking 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 cloak is formed of a metamaterial where the properties of the metamaterial are varied as a function of distance from the cloak 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： 描述了一种伪装的装置和方法。 被掩蔽的物体被设置成使掩蔽装置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。 斗篷由超材料形成，其中超材料的性质根据距离斗篷界面的距离而变化。 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。
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公开(公告)号：US20100165473A1
公开(公告)日：2010-07-01
申请号：US12605021
申请日：2009-10-23
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。
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公开(公告)号：US20080165442A1
公开(公告)日：2008-07-10
申请号：US11983228
申请日：2007-11-07
IPC分类号： G02B27/00
摘要： An apparatus and method of cloaking is described. An object to be cloaked is disposed such that the cloaking 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 cloak is formed of a metamaterial where the properties of the metamaterial are varied as a function of distance from the cloak interfaces, and the permittivity is less than unity. The metamaterial may be fabricated as a composite material having a dielectric component and inclusions of particles of sub-wavelength size, so as to have a permeability substantially equal to unity.
摘要翻译： 描述了一种伪装的装置和方法。 被掩蔽的物体被设置成使掩蔽装置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。 斗篷由超材料形成，其中超材料的性质随斗篷界面的距离而变化，并且介电常数小于单位。 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，以使其渗透率基本上等于1。
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6.发明申请ANISOTROPIC METAMATERIALS EMULATED BY TAPERED WAVEGUIDES: APPLICATION TO ELECTROMAGNETIC CLOAKING 失效通过波形波纹法测量的各向异性金属元素：应用于电磁悬挂公开(公告)号：US20100278481A1
公开(公告)日：2010-11-04
申请号：US12773528
申请日：2010-05-04
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倍的波长示出宽带，二维电磁遮掩。 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证明。
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公开(公告)号：US20090219623A1
公开(公告)日：2009-09-03
申请号：US12224196
申请日：2007-02-28
CPC分类号： G01J3/02 , B82Y20/00 , G01J3/0256 , G01J3/0297 , G02B1/007 , G02B6/1225 , G02B6/1226 , H01S3/0632 , H01S3/1608 , H01S3/169
摘要： A composition of resonant passive metal-dielectric elements with gain medium results in a meta-material with an effective negative refractive index and compensated losses. To compensate for losses, additional energy is supplied using the stimulated emission from active elements made of a gain material. The overall objective is to overcome the fundamental threshold in resolution for conventional optical imaging limited to about a half-wavelength of incident light. The negative index material with compensated losses (NIMCOL) can be used in NIM-based optical imaging and sensing devices with enhanced sub-wavelength resolution. A lasing device based on overcompensating for the loss in NIM structures is disclosed as well.
摘要翻译： 具有增益介质的谐振无源金属 - 介电元件的组成导致具有有效负折射率和补偿损耗的超常材料。 为了补偿损耗，使用由增益材料制成的有源元件的受激发射来提供额外的能量。 总体目标是克服限于约半波长的入射光的常规光学成像的分辨率的基本阈值。 具有补偿损耗的负指数材料（NIMCOL）可用于具有增强的亚波长分辨率的基于NIM的光学成像和感测装置。 还公开了一种基于对NIM结构的损耗进行过补偿的激光装置。
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8.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
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。
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9.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
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。
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公开(公告)号：US08094378B2
公开(公告)日：2012-01-10
申请号：US12605021
申请日：2009-10-23
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。
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