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    • 114. 发明授权
    • Random negative index material structures in a three-dimensional volume
    • 三维体积中的随机负指数材料结构
    • US07593170B2
    • 2009-09-22
    • US11584320
    • 2006-10-20
    • Wei WuShih-Yuan WangAlexandre M. Bratkovski
    • Wei WuShih-Yuan WangAlexandre M. Bratkovski
    • G02B13/18H01B3/24
    • G02B1/00B82Y20/00G02B1/007G02F2202/30H01Q15/0086
    • Materials and methods for fabricating and using negative index materials are disclosed. A negative index material comprises a three-dimensional volume including a bulk solution and a plurality of unit cells disposed in the bulk solution in a substantially random pattern. Each unit cell comprises a periodic hole array pattern on a substrate or a resonator formed on a first surface of a substrate, and a thin wire pattern formed on a second surface of the substrate. The combination of the unit cells in the bulk solution produces a negative effective permeability and a negative effective permittivity over a frequency band of interest for the three-dimensional volume. The negative index material may be used to focus radiation by directing an incident radiation at the negative index material and generating a focused radiation by a negative refraction of the incident radiation in the negative index material.
    • 公开了制造和使用负指数材料的材料和方法。 负指数材料包括三维体积,其包括本体溶液和以大致随机图案设置在本体溶液中的多个单元电池。 每个单元电池包括在衬底上形成的周期性孔阵列图案或形成在衬底的第一表面上的谐振器,以及形成在衬底的第二表面上的细线图案。 本体溶液中的单元电池的组合在三维体积的感兴趣频带上产生负的有效磁导率和负的有效介电常数。 负折射率材料可以用于通过在负指数材料处引入入射辐射来聚焦辐射,并通过负指数材料中的入射辐射的负折射产生聚焦辐射。