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公开(公告)号：US09989677B2
公开(公告)日：2018-06-05
申请号：US14427052
申请日：2013-09-04
Applicant: Purdue Research Foundation
Inventor： Vladimir Shalaev , Alexander Kildishev , Xingjie Ni , Satoshi Ishii
CPC classification number: G02B5/008 , B82Y20/00 , G02B1/002 , Y10S977/834
Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
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Patent Agency Ranking
公开(公告)号：US20180292581A1
公开(公告)日：2018-10-11
申请号：US16000843
申请日：2018-06-05
Applicant: Purdue Research Foundation
Inventor： Vladimir Shalaev , Alexander Kildishev , Xingjie Ni , Satoshi Ishii
CPC classification number: G02B5/008 , B82Y20/00 , G02B1/002 , Y10S977/834
Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
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公开(公告)号：US10042091B2
公开(公告)日：2018-08-07
申请号：US14431544
申请日：2013-09-26
Applicant: Purdue Research Foundation
Inventor： Alexander Kildishev , Satoshi Ishii , Vladimir Shalaev
IPC: G02F1/03 , G02B3/08 , G02B1/00 , G02B3/00 , G02F1/225 , G02F1/365 , G02F1/39 , G02B5/00 , G02B6/122 , G02B6/26 , B82Y20/00
Abstract: A planar optical device, comprised of sets of nanometer-scale holes milled into a thin metal or ceramic film of subwavelength thickness serves to form arbitrary waveform of light. The holes form a pattern, preferrably rings, of various sizes in order to achieve a given phase front of light due to photonic effect. When designed as a lens, the device focuses incident light into a tight focal spot. In symmetric design, the focusing property of the device does not depend on the incident polarization angle. The lens can be manufactured based on high-throughput fabrication methods and easily integrated with a chip or placed at the end of an optical fiber.
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公开(公告)号：US20190033496A1
公开(公告)日：2019-01-31
申请号：US16057130
申请日：2018-08-07
Applicant: Purdue Research Foundation
Inventor： Alexander Kildishev , Satoshi Ishii , Vladimir Shalaev
IPC: G02B3/08 , G02B1/00 , G02B3/00 , G02B5/00 , G02F1/225 , G02B6/122 , G02F1/365 , G02F1/39 , G02B6/26 , B82Y20/00
Abstract: A method of making an optical device including forming a plurality of holes with varying radii milled vertically into a film, wherein said holes form a pattern. The radius of each hole determines an effective refractive index for said hole. The effective refractive index modifies a phase and an intensity of an incoming electromagnetic radiation as the radiation propagates through said hole. The device is configured to be operating equally for each linearly polarized radiation simultaneously, wherein the each linearly polarized radiation is normally incident on the device.
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公开(公告)号：US10690817B2
公开(公告)日：2020-06-23
申请号：US16000843
申请日：2018-06-05
Applicant: Purdue Research Foundation
Inventor： Vladimir Shalaev , Alexander Kildishev , Xingjie Ni , Satoshi Ishii
Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
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公开(公告)号：US20150309218A1
公开(公告)日：2015-10-29
申请号：US14427052
申请日：2013-09-04
Applicant: PURDUE RESEARCH FOUNDATION
Inventor： Vladimir Shalaev , Alexander Kildishev , Xingjie Ni , Satoshi Ishii
CPC classification number: G02B5/008 , B82Y20/00 , G02B1/002 , Y10S977/834
Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.
Abstract translation: 无论入射光的极化如何，超薄平面器件均用于微米级的任意波形形成。 图案穿孔在30nm厚的金属膜中制成，产生离散相移并形成期望的交叉极化散射光的波前。 这些器件的信噪比比目前的金属纳米天线设计高至少一个数量级。 也可以通过改变入射光的波长来调整构成该原理的透镜的焦距。 所有提出的实施例可以例如嵌入在芯片上或在光纤的末端。
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