APPARATUS AND METHOD FOR ENHANCED OPTICAL TRANSMISSION THROUGH A SMALL APERTURE, USING RADIALLY POLARIZED RADIATION
    62.
    发明申请
    APPARATUS AND METHOD FOR ENHANCED OPTICAL TRANSMISSION THROUGH A SMALL APERTURE, USING RADIALLY POLARIZED RADIATION 审中-公开
    通过小孔径进行放射性极化辐射增强光传输的装置和方法

    公开(公告)号:WO2006067734A1

    公开(公告)日:2006-06-29

    申请号:PCT/IB2005/054321

    申请日:2005-12-19

    Abstract: An apparatus for enhanced transmission of radiation, comprising at least one radiation source (12), a metal plate (18) with a first (20) and a second (22) surface and at least one aperture (24) provided in the metal plate (18) and extending from the first (20) to the second (22) surface, the metal plate (18) having a periodic surface topography (26) provided on at least one of the first (20) and the second (22) surfaces, and radiation (13) coming from the radiation source (12) and being incident on one of the surfaces (20,22) of the metal plate (18) interacts with a surface plasmon mode on at least one of the surfaces of the metal plate (18), thereby enhancing transmission of radiation through the at least one aperture (24) of the metal plate (18). The apparatus for enhanced optical transmission comprises means (15) for generating radially polarized radiation (16), which is incident on one of the surfaces (20,22) of the metal plate (18) with a surface topography (26), resulting in a more efficient coupling of the radiation to the plasmons and thereby in a further enhancement of the optical transmission.

    Abstract translation: 一种用于增强辐射透射的装置,包括至少一个辐射源(12),具有第一(20)和第二(22)表面的金属板(18)和设置在金属板中的至少一个孔(24) (18)并且从所述第一(20)至所述第二(22)表面延伸,所述金属板(18)具有设置在所述第一(20)和第二(22)中的至少一个上的周期性表面形貌(26) 表面和来自辐射源(12)并且入射在金属板(18)的一个表面(20,22)上的辐射(13)在表面等离子体模式下与至少一个表面 金属板(18),从而增强辐射通过金属板(18)的至少一个孔(24)的透射。 用于增强光学传输的装置包括用于产生径向偏振辐射(16)的装置(15),其以表面形貌(26)入射到金属板(18)的一个表面(20,22)上,导致 更有效地将辐射耦合到等离子体激元,从而进一步增强光传输。

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