公开(公告)号：US20180292644A1

公开(公告)日：2018-10-11

申请号：US15948677

申请日：2018-04-09

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Seyedeh Mahsa KAMALI ,  Ehsan ARBABI ,  Amir ARBABI ,  Yu HORIE ,  Andrei FARAON

IPC: G02B26/08 ,  G02B1/00 ,  G02B5/02 ,  G02B1/04

Abstract: Metasurfaces comprise an array of meta-atoms in a stretchable polymer. The dimensions and shapes of the meta-atoms and the spacing are varied to obtain desired optical properties. Any optical wavefront, for different wavelengths, illumination angles, and polarization states can be designed with proper design of the meta-atoms. As the metasurface is stretched, the distance between the meta-atoms changes, modifying the optical response, while the dimensions of the meta-atoms remains constant.

公开(公告)号：US20180275321A1

公开(公告)日：2018-09-27

申请号：US15975521

申请日：2018-05-09

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Seyedeh Mahsa KAMALI ,  Ehsan ARBABI ,  Amir ARBABI ,  Andrei FARAON

IPC: G02B5/02 ,  G02B27/42 ,  G02B27/00 ,  G02B1/00 ,  G02B5/18

CPC classification number: G02B5/0226 ,  G02B1/002 ,  G02B5/0242 ,  G02B5/0263 ,  G02B5/0268 ,  G02B5/0278 ,  G02B5/1876 ,  G02B27/0025 ,  G02B27/4211

Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the same focal distance for each wavelength, or at different focal distances according to the desired application. The scattering elements fabricated on a substrate can be peeled off with a polymer matrix and attached to a lens to modify the optical properties of the lens.

公开(公告)号：US20160320531A1

公开(公告)日：2016-11-03

申请号：US15097101

申请日：2016-04-12

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Seyedeh Mahsa KAMALI ,  Ehsan ARBABI ,  Amir ARBABI ,  Andrei FARAON

IPC: G02B5/02 ,  G02B27/00 ,  G02B1/00

CPC classification number: G02B5/0226 ,  G02B1/002 ,  G02B5/0263 ,  G02B5/0268 ,  G02B5/1876 ,  G02B27/0025 ,  G02B27/4211

Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the the same focal distance for each wavelength, or at different focal distances according to the desired application. The scattering elements fabricated on a substrate can be peeled off with a polymer matrix and attached to a lens to modify the optical properties of the lens.

Abstract translation: 公开了用于散射多个波长的光的结构。 用不同的几何尺寸和布置制造散射元件，以根据期望的应用将光在每个波长的相同焦距处或者以不同的焦距散射或聚焦。 在基板上制造的散射元件可以用聚合物基体剥离并附着到透镜上以改变透镜的光学性质。

公开(公告)号：US20160306079A1

公开(公告)日：2016-10-20

申请号：US15096615

申请日：2016-04-12

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Ehsan ARBABI ,  Amir ARBABI ,  Andrei FARAON

IPC: G02B5/02 ,  G02B1/00

CPC classification number: G02B5/0226 ,  G02B1/002 ,  G02B5/0263 ,  G02B5/0268 ,  G02B5/1876 ,  G02B27/0025 ,  G02B27/4211

Abstract: Structures for scattering light at multiple wavelengths are disclosed. Scattering elements are fabricated with different geometric dimensions and arrangements, to scatter or focus light at the same focal distance for each wavelength, or at different focal distances according to the desired application. Scattering elements can be circular or elliptical posts, allowing polarization dependent scattering. The elements can have different orientations to scatter light from multiple wavelengths at the desired focal length.

Abstract translation: 公开了用于散射多个波长的光的结构。 散射元件被制造成具有不同的几何尺寸和布置，以根据期望的应用在每个波长或不同的焦距处散射或聚焦在相同焦距处的光。 散射元件可以是圆形或椭圆形柱，允许偏振相关散射。 这些元件可以具有不同的取向以在期望焦距下散射来自多个波长的光。

公开(公告)号：US20150219806A1

公开(公告)日：2015-08-06

申请号：US14610862

申请日：2015-01-30

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Amir ARBABI ,  Andrei FARAON

IPC: G02B5/18 ,  G02B1/00

CPC classification number: G02B5/1828 ,  G02B1/002 ,  G02B3/0087 ,  G02B5/18 ,  G02B5/1842 ,  G02B5/1847 ,  G02B7/08 ,  G02B27/4277 ,  G02F1/0018 ,  G03B3/00 ,  Y10T29/49844

Abstract: An optical device has a first metasurface disposed over a substrate. A high-contrast pattern of the first metasurface is operable for modifying, over a first phase profile, a phase front of an incident light beam. A second metasurface, is disposed over a plane parallel to the first metasurface with a second high-contrast pattern and operable for shaping, over a second phase profile, the modified phase front of the incident light beam into a converging spherical phase front. A spacer layer, in which the modified phase front of the incident light beam diffracts, is disposed in a controllably changeable separation between the first and second metasurfaces. Controllably changing the separation between the first and the second metasurfaces by a first distance correspondingly changes the position of the focus point of the converging spherical phase front by a second distance significantly greater than the first distance.

Abstract translation: 光学器件具有设置在衬底上的第一分表面。 第一分表的高对比度图案可操作用于在第一相位轮廓上修改入射光束的相位前沿。 第二分表面设置在平行于第一分表面的平面上，具有第二高对比度图案，并且可操作用于在第二相位轮廓上使入射光束的修改相位前沿成为会聚球形相位前沿。 其中入射光束的修正相位前沿衍射的间隔层被布置在第一和第二分表面之间的可控地变化的间隔中。 可控地改变第一和第二元件之间的距离第一距离相应地将会聚球形相位前方的焦点的位置改变明显大于第一距离的第二距离。