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    • 9. 发明申请
    • NEAR FIELD SUPER LENS EMPLOYING TUNABLE NEGATIVE INDEX MATERIALS
    • 使用可调整的负性指标材料的近场超级透镜
    • WO2008133769A3
    • 2008-12-31
    • PCT/US2008002482
    • 2008-02-26
    • PURDUE RESEARCH FOUNDATIONSHALAEV VLADIMIR MKILDISHEV ALEXANDER VDRACHEV VLADIMIR PCAI WENSHAN
    • SHALAEV VLADIMIR MKILDISHEV ALEXANDER VDRACHEV VLADIMIR PCAI WENSHAN
    • G01J3/00
    • G02B3/02B82Y20/00G02B1/007G02B21/02
    • A tunable super-lens (TSL) for nanoscale optical sensing and imaging of bio-molecules and nano-manufacturing utilizes negative-index materials (NIMs) that operate in the visible or near infrared light. The NIMs can create a lens that will perform sub-wavelength imaging, enhanced resolution imaging, or flat lens imaging. This new TSL covers two different operation scales. For short distances between the object and its image, a near-field super-lens (NFSL) can create or enhance images of objects located at distances much less than the wavelength of light. For the far-zone, negative values are necessary for both the permittivity e and permeability µ. While well-structured periodic meta-materials, which require delicate design and precise fabrication, can be used, metal-dielectric composites are also candidates for NIMs in the optical range. The negative-refraction in the composite films can be made by using frequency-selective photomodification.
    • 用于纳米级光学传感和生物分子成像和纳米制造的可调超级透镜(TSL)利用在可见光或近红外光下工作的负折射率材料(NIM)。 NIM可以创建一个能够执行亚波长成像,增强分辨率成像或平面镜头成像的镜头。 这个新的TSL涵盖两种不同的操作规模。 对于物体与其图像之间的短距离,近场超级透镜(NFSL)可以创建或增强位于距离远小于光波长的物体的图像。 对于远区,介电常数ε和磁导率μ都需要负值。 尽管可以使用需要精细设计和精确制造的结构良好的周期性超材料,但金属 - 电介质复合材料也可用于光学范围内的NIM。 在复合膜中的负折射可以通过使用频率选择性光修饰来进行。