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公开(公告)号：US10760970B2
公开(公告)日：2020-09-01
申请号：US16233036
申请日：2018-12-26
Applicant: Purdue Research Foundation
Inventor： Amr Mohammad E Shaltout , Alexander Kildishev , Vladimir Shalaev , Jingjing Liu
Abstract: A circular dichroism spectrometer which comprises a metasurface. The metasurface has a plurality of anisotropic antennas configured to simultaneously spatially separate LCP and RCP spectral components from an incoming light beam. An optical detector array is included which detects the LCP and RCP spectral components. A transparent medium is situated between the metasurface and the optical detector array.
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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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13.发明申请公开(公告)号：US20180003865A1
公开(公告)日：2018-01-04
申请号：US15639923
申请日：2017-06-30
Applicant: Purdue Research Foundation
Inventor： Urcan Guler , Alberto Naldoni , Alexander Kildishev , Alexandra Boltasseva , Vladimir M. Shalaev
CPC classification number: G02B5/008 , B01J23/00 , B01J23/40 , B01J23/72 , B01J27/24 , B01J35/0013 , B01J35/004 , B82Y20/00 , C09C1/3607 , E06B2009/2464 , G02F2203/10 , H01L51/5268
Abstract: A nanostructured material system for efficient collection of photo-excited carriers is provided. They system comprises a plurality of plasmonic metal nitride core material elements coupled to a plurality of semiconductor material elements. The plasmonic nanostructured elements form ohmic junctions at the surface of the semiconductor material or at close proximity with the semiconductor material elements. A nanostructured material system for efficient collection of photo-excited carriers is also provided, comprising a plurality of plasmonic transparent conducting oxide core material elements coupled to a plurality of semiconductor material elements. The field enhancement, local temperature increase and energized hot carriers produced by nanostructures of these plasmonic material systems play enabling roles in various chemical processes. They induce, enhance, or mediate catalytic activities in the neighborhood when excited near the resonance frequencies.
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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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公开(公告)号：US11971576B2
公开(公告)日：2024-04-30
申请号：US18074641
申请日：2022-12-05
Applicant: Purdue Research Foundation
Inventor： Urcan Guler , Alexander Kildishev , Vladimir M. Shalaev , Alexei S. Lagutchev , Andrey N. Smolyaninov
CPC classification number: G02B6/1226 , B82Y20/00 , Y10S977/701 , Y10S977/949 , Y10S977/95
Abstract: A method for producing a single photon source includes lithographically patterning a polymer on top of a plasmonic thin film, functionalizing top surfaces of the plasmonic thin film and the polymer, removing the polymer to form patterned functionalized sites on the top surface of the plasmonic thin film surface, and depositing nanodiamond particles to the patterned functionalized sites.
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Patent Agency Ranking
公开(公告)号：US20230177642A1
公开(公告)日：2023-06-08
申请号：US17858722
申请日：2022-07-06
Applicant: Purdue Research Foundation
Inventor： Zhaxylyk A. Kudyshev , Demid Sychev , Zachariah Olson Martin , Simeon I. Bogdanov , Xiaohui Xu , Alexander Kildishev , Alexandra Boltasseva , Vladimir Shalaev
CPC classification number: G06T3/4053 , G06T3/4046 , G02B21/0072
Abstract: A method of providing super-resolved images of a photon emitting particle is disclosed, which includes providing a machine-learning (ML) platform, wherein the ML platform is configured to receive pixel-based sparse autocorrelation data and generate a predicted super-resolved image of a photon emitting particle, receiving photons from the photon emitting particle by two or more photon detectors, each generating an electrical pulse associated with receiving an incident photon thereon, generating sparse autocorrelation data from the two or more photon detectors for each pixel within an image area, and inputting the pixel-based sparse autocorrelation data to the ML platform, thereby generating a predicted super-resolved image of the imaging area, wherein the resolution of the super-resolved image is improved by √n as compared to a classical optical microscope limited by Abbe diffraction limit.
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公开(公告)号：US20230101210A1
公开(公告)日：2023-03-30
申请号：US18074641
申请日：2022-12-05
Applicant: Purdue Research Foundation
Inventor： Urcan Guler , Alexander Kildishev , Vladimir M. Shalaev , Alexei S. Lagutchev , Andrey N. Smolyaninov
Abstract: A method for producing a single photon source includes lithographically patterning a polymer on top of a plasmonic thin film, functionalizing top surfaces of the plasmonic thin film and the polymer, removing the polymer to form patterned functionalized sites on the top surface of the plasmonic thin film surface, and depositing nanodiamond particles to the patterned functionalized sites.
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公开(公告)号：US10161797B2
公开(公告)日：2018-12-25
申请号：US15202048
申请日：2016-07-05
Applicant: Purdue Research Foundation
Inventor： Amr Shaltout , Alexander Kildishev , Vladimir Shalaev , Jingjing Liu
Abstract: A circular dichroism spectrometer which comprises a metasurface. The metasurface has a plurality of anisotropic antennas configured to simultaneously spatially separate LCP and RCP spectral components from an incoming light beam. An optical detector array is included which detects the LCP and RCP spectral components. A transparent medium is situated between the metasurface and the optical detector array.
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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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公开(公告)号：US09778400B2
公开(公告)日：2017-10-03
申请号：US15183382
申请日：2016-06-15
Applicant: PURDUE RESEARCH FOUNDATION
Inventor： Justus Chukwunonso Ndukaife , Alexandra Boltasseva , Agbai A. Nnanna , Steven Truitt Wereley , Alexander Kildishev , Vladimir M. Shalaev
CPC classification number: G02B5/008
Abstract: A system and method suitable for selection, manipulation, and analysis of individual particles within a fluid medium. The system and method involve manipulating the particles by contacting the fluid medium with a plasmonic nanoantenna, illuminating the plasmonic nanoantenna with a source of light such that the plasmonic nanoantenna acts as a nanoscale heat source resulting in localized heating of the fluid medium creating local gradients in the electrical properties of the fluid medium that yield plasmonic trapping sites in the vicinity of the plasmonic nanoantenna, and applying an alternating current electric field in the fluid medium to create electrothermoplasmonic flow around the plasmonic nanoantenna. The electrothermoplasmonic flow transports at least one of the particles towards the plasmonic nanoantenna and the particle is trapped by at least one of the plasmonic trapping sites.
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