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    Discriminating electromagnetic radiation based on angle of incidence
    3.
    发明授权
    Discriminating electromagnetic radiation based on angle of incidence 有权
    基于入射角识别电磁辐射

    公开(公告)号：US09057830B2

    公开(公告)日：2015-06-16

    申请号：US13186159

    申请日：2011-07-19

    申请人： Rafif E. Hamam ,  Peter Bermel ,  Ivan Celanovic ,  Marin Soljacic ,  Adrian Y. X. Yeng ,  Michael Ghebrebrhan ,  John D. Joannopoulos

    发明人： Rafif E. Hamam ,  Peter Bermel ,  Ivan Celanovic ,  Marin Soljacic ,  Adrian Y. X. Yeng ,  Michael Ghebrebrhan ,  John D. Joannopoulos

    IPC分类号： G02B27/42 ,  H01L31/0232 ,  G02B6/122 ,  B82Y20/00 ,  H01L31/0216 ,  H02S10/30

    CPC分类号： G02B6/1225 ,  B82Y20/00 ,  H01L31/02168 ,  H02S10/30 ,  Y02E10/50

    摘要： The present invention provides systems, articles, and methods for discriminating electromagnetic radiation based upon the angle of incidence of the electromagnetic radiation. In some cases, the materials and systems described herein can be capable of inhibiting reflection of electromagnetic radiation (e.g., the materials and systems can be capable of transmitting and/or absorbing electromagnetic radiation) within a given range of angles of incidence at a first incident surface, while substantially reflecting electromagnetic radiation outside the range of angles of incidence at a second incident surface (which can be the same as or different from the first incident surface). A photonic material comprising a plurality of periodically occurring separate domains can be used, in some cases, to selectively transmit and/or selectively absorb one portion of incoming electromagnetic radiation while reflecting another portion of incoming electromagnetic radiation, based upon the angle of incidence. In some embodiments, one domain of the photonic material can include an isotropic dielectric function, while another domain of the photonic material can include an anisotropic dielectric function. In some instances, one domain of the photonic material can include an isotropic magnetic permeability, while another domain of the photonic material can include an anisotropic magnetic permeability. In some embodiments, non-photonic materials (e.g., materials with relatively large scale features) can be used to selectively absorb incoming electromagnetic radiation based on angle of incidence.

    摘要翻译： 本发明提供了用于基于电磁辐射的入射角鉴别电磁辐射的系统，物品和方法。 在一些情况下，本文描述的材料和系统能够抑制电磁辐射的反射（例如，材料和系统能够在第一次事件的给定入射角范围内传播和/或吸收电磁辐射） 同时在第二入射表面（其可以与第一入射表面相同或不同）的入射角范围之外基本上反射电磁辐射。 可以使用包括多个周期性发生的分离区域的光子材料，在某些情况下，可以基于入射角来选择性地传输和/或选择性地吸收一部分进入的电磁辐射，同时反射入射电磁辐射的另一部分。 在一些实施例中，光子材料的一个区域可以包括各向同性介电函数，而光子材料的另一个畴可以包括各向异性介电函数。 在一些情况下，光子材料的一个畴可以包括各向同性磁导率，而光子材料的另一个畴可以包括各向异性的磁导率。 在一些实施例中，非光子材料（例如，具有相对较大尺度特征的材料）可用于基于入射角选择性地吸收进入的电磁辐射。

    DISCRIMINATING ELECTROMAGNETIC RADIATION BASED ON ANGLE OF INCIDENCE
    4.
    发明申请
    DISCRIMINATING ELECTROMAGNETIC RADIATION BASED ON ANGLE OF INCIDENCE 有权
    基于角度分辨电磁辐射

    公开(公告)号：US20120037217A1

    公开(公告)日：2012-02-16

    申请号：US13186159

    申请日：2011-07-19

    申请人： Rafif E. Hamam ,  Peter Bermel ,  Ivan Celanovic ,  Marin Soljacic ,  Adrian Y.X. Yeng ,  Michael Ghebrebrhan ,  John D. Joannopoulos

    发明人： Rafif E. Hamam ,  Peter Bermel ,  Ivan Celanovic ,  Marin Soljacic ,  Adrian Y.X. Yeng ,  Michael Ghebrebrhan ,  John D. Joannopoulos

    IPC分类号： H01L31/0232 ,  H01L31/04 ,  G02B27/42

    CPC分类号： G02B6/1225 ,  B82Y20/00 ,  H01L31/02168 ,  H02S10/30 ,  Y02E10/50

    摘要： The present invention provides systems, articles, and methods for discriminating electromagnetic radiation based upon the angle of incidence of the electromagnetic radiation. In some cases, the materials and systems described herein can be capable of inhibiting reflection of electromagnetic radiation (e.g., the materials and systems can be capable of transmitting and/or absorbing electromagnetic radiation) within a given range of angles of incidence at a first incident surface, while substantially reflecting electromagnetic radiation outside the range of angles of incidence at a second incident surface (which can be the same as or different from the first incident surface). A photonic material comprising a plurality of periodically occurring separate domains can be used, in some cases, to selectively transmit and/or selectively absorb one portion of incoming electromagnetic radiation while reflecting another portion of incoming electromagnetic radiation, based upon the angle of incidence. In some embodiments, one domain of the photonic material can include an isotropic dielectric function, while another domain of the photonic material can include an anisotropic dielectric function. In some instances, one domain of the photonic material can include an isotropic magnetic permeability, while another domain of the photonic material can include an anisotropic magnetic permeability. In some embodiments, non-photonic materials (e.g., materials with relatively large scale features) can be used to selectively absorb incoming electromagnetic radiation based on angle of incidence.

    摘要翻译： 本发明提供了用于基于电磁辐射的入射角鉴别电磁辐射的系统，物品和方法。 在一些情况下，本文描述的材料和系统能够抑制电磁辐射的反射（例如，材料和系统能够在第一次事件的给定入射角范围内传播和/或吸收电磁辐射） 同时在第二入射表面（其可以与第一入射表面相同或不同）的入射角范围之外基本上反射电磁辐射。 可以使用包括多个周期性发生的分离区域的光子材料，在某些情况下，可以基于入射角来选择性地传输和/或选择性地吸收一部分进入的电磁辐射，同时反射入射电磁辐射的另一部分。 在一些实施例中，光子材料的一个区域可以包括各向同性介电函数，而光子材料的另一个畴可以包括各向异性介电函数。 在一些情况下，光子材料的一个畴可以包括各向同性磁导率，而光子材料的另一个畴可以包括各向异性的磁导率。 在一些实施例中，非光子材料（例如，具有相对较大尺度特征的材料）可用于基于入射角选择性地吸收进入的电磁辐射。

    METHODS AND APPARATUS FOR BROADBAND ANGULAR SELECTIVITY OF ELECTROMAGNETIC WAVES
    5.
    发明申请
    METHODS AND APPARATUS FOR BROADBAND ANGULAR SELECTIVITY OF ELECTROMAGNETIC WAVES 审中-公开
    电磁波宽带选择性的方法与装置

    公开(公告)号：US20160252652A1

    公开(公告)日：2016-09-01

    申请号：US14630080

    申请日：2015-02-24

    申请人： Yichen Shen ,  Dexin Ye ,  Ivan Celanovic ,  Steven G. Johnson ,  John D. Joannopoulos ,  Marin Soljacic

    发明人： Yichen Shen ,  Dexin Ye ,  Ivan Celanovic ,  Steven G. Johnson ,  John D. Joannopoulos ,  Marin Soljacic

    IPC分类号： G02B1/00 ,  G02B5/30 ,  G02F1/01 ,  G02B5/26

    CPC分类号： G02B1/005 ,  G02B5/20 ,  G02B5/26 ,  G02B5/3066 ,  G02B5/3083 ,  G02F1/0131 ,  G02F1/0147

    摘要： A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.

    摘要翻译： 用于以预定入射角透射入射辐射的滤光器包括基本沿着滤光器的表面法线方向设置的多个光子晶体结构。 光子晶体结构包括多层单元，其包括具有第一介电常数的第一层和具有不同于第一介电常数的第二介电常数的第二层。 基于第一介电常数和第二介电常数，第一层和第二层限定基本上等于预定入射角的布鲁斯特角。 多个光子晶体结构中的每个光子晶体结构限定相应的带隙，并且多个光子晶体结构的各个带隙一起覆盖约50nm至约100mm的连续光谱区域。