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公开(公告)号：US11733507B2
公开(公告)日：2023-08-22
申请号：US16794964
申请日：2020-02-19
Applicant: Purdue Research Foundation
Inventor： Piotr Nyga , Alexander V. Kildishev , Sarah Nahar Chowdhury , Alexandra Boltasseva , Zhaxylyk Kudyshev , Vladimir M. Shalaev
CPC classification number: G02B26/007 , G02F1/0147 , G02B2207/101 , G02F2203/10
Abstract: An optical device, wherein the optical device includes a dielectric layer over a mirror layer. The optical device further includes a plurality of plasmonic nanoparticles over the dielectric layer. Additionally, the optical device includes a protective layer over the plurality of plasmonic nanoparticles.
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公开(公告)号：US11698460B2
公开(公告)日：2023-07-11
申请号：US16605902
申请日：2018-04-17
Applicant: Purdue Research Foundation , THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
Inventor： Amr Mohammad E. A. Shaltout , Vladimir M. Shalaev , Mark L. Brongersma
CPC classification number: G01S17/89 , G01S7/4814 , G01S7/4817
Abstract: A laser beam steering system is disclosed. The system includes a laser source which produces a pulsed laser light beam with a frequency comb spectrum, a metasurface configured to i) receive the pulsed laser, ii) generate a diffracted pulsed laser output at different frequencies with a beam at a center frequency normal to the metasurface, and iii) directing light at different frequencies onto different foci at a focal plane, light propagating from the focal plane leads to generation of one or more optical beams that are controlled in space and time.
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公开(公告)号：US20220333266A1
公开(公告)日：2022-10-20
申请号：US17734934
申请日：2022-05-02
Inventor： Vladimir M. Shalaev , Zhaxylyk Kudyshev , Alexandra Boltasseva , Alberto Naldoni , Alexander Kildishev , Luca Mascaretti , Stêphán Kment , Radek Zboril , Jeong Eun Yoo , Patrik Schmuki
IPC: C25D11/26 , C01B21/076
Abstract: A thermoplasmonic device includes a titanium film and a plurality of titanium nitride tube elements disposed on the titanium film. Each of the titanium nitride tube elements includes an open top and a titanium nitride bottom. Each of the titanium nitride tube elements has titanium nitride tubular middle portion that extends from the open top to the titanium nitride bottom.
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24.发明授权公开(公告)号：US11385386B2
公开(公告)日：2022-07-12
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
IPC: G02B5/00 , B01J27/24 , B01J35/00 , C09C1/36 , H01L51/52 , B82Y20/00 , B01J23/00 , E06B9/24 , B01J23/72 , B01J23/40
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：US20220171000A1
公开(公告)日：2022-06-02
申请号：US17538007
申请日：2021-11-30
Applicant: Purdue Research Foundation
Inventor： Vladimir M. Shalaev , Pramey Upadhyaya , Abhishek Bharatbhai Solanki , Simeon I. Bogdanov , Yong P. Chen , Mohammad Mushfiqur Rahman , Avinash Rustagi
Abstract: A nanodevice provides for electric-field control of magnon-QSD interactions. The nanodevice includes a ferroelectric substrate, a ferromagnetic material disposed over the ferroelectric substrate, and a nanodiamond including an ensemble of nitrogen-vacancy (NV) spins, each NV magnetically interfacing with the ferromagnetic material. An electric field is measured by applying a voltage across the ferroelectric substrate and the ferromagnetic material, changing a magnon excitation spectrum of the ferromagnetic material with respect to an electron spin resonance frequency of the ensemble of NV spins, and measuring a relaxation rate of the ensemble of NV spins.
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Patent Agency Ranking
公开(公告)号：US20210325577A1
公开(公告)日：2021-10-21
申请号：US17224338
申请日：2021-04-07
Applicant: Purdue Research Foundation
Inventor： Alexander V. Kildishev , Di Wang , Zhaxylyk A. Kudyshev , Maowen Song , Alexandra Boltasseva , Vladimir M. Shalaev
IPC: G02B5/00 , G11B7/125 , G11B7/1381
Abstract: A plasmonic system is disclosed. The system includes at least one polarizer that is configured to provide at least one linearly polarized broadband light beam, an anisotropic plasmonic metasurface (APM) assembly having a plurality of nanoantennae each having a predetermined orientation with respect to a global axis representing encoded digital data, the APM assembly configured to receive the at least one linearly polarized broadband light beam and by applying localized surface plasmon resonance reflect light with selectable wavelengths associated with the predetermined orientations of the nanoantennae, and at least one analyzer that is configured to receive the reflected light with selectable wavelength, wherein the relative angles between each of the at least one analyzers and each of the at least one polarizers are selectable with respect to the global axis, thereby allowing decoding of the digital data.
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公开(公告)号：US11119042B2
公开(公告)日：2021-09-14
申请号：US16990754
申请日：2020-08-11
Applicant: Purdue Research Foundation
IPC: G01N21/552 , G01N21/01 , G01R33/12 , B82Y20/00 , B82Y35/00
Abstract: A system of writing to and reading from a magnetic nanostructure is disclosed which includes an opto-magnetic write arrangement including a polarizer configured to receive incident light and provide a circularly or linearly polarized light, wherein light polarization is controlled by the polarizer and its orientation with respect to polarization of the incident light, a nanomagnetic structure configured to receive the polarized light including a substrate, and a nanomagnetic stack including a nanomagnet, and a capping layer, wherein the nanomagnetic stack is configured to receive the polarized light and thereby switch orientation of a magnetic moment associated with the magnetic nanostructure whereby the magnetic moment direction specifies a bit value held in the magnetic structure, and a magnetic read arrangement, configured to receive and interpret an optical signal from the magnetic nanostructure indicating the magnetic moment orientation from the nanomagnetic stack.
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公开(公告)号：US10754295B2
公开(公告)日：2020-08-25
申请号：US15957229
申请日：2018-04-19
Applicant: Purdue Research Foundation
Inventor： Amr Shaltout , Sajid Choudhury , Alexander V. Kildishev , Alexandra Boltasseva , Vladimir M. Shalaev
Abstract: A device for producing a subwavelength hologram. The device comprises a metasurface layer attached to a substrate. The metasurface layer includes an array of plasmonic antennas that simultaneously encode both wavelength and phase information of light directed through the array to produce a hologram. The wavelength is determined by the size of the antennas, and the phase is determined by the orientation of the antennas.
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公开(公告)号：US10739261B2
公开(公告)日：2020-08-11
申请号：US16399917
申请日：2019-04-30
Applicant: Purdue Research Foundation
IPC: G01N21/552 , G01N21/01 , G01R33/12 , B82Y20/00 , B82Y35/00
Abstract: A magneto-plasmonic nanostructure is disclosed. The structure includes a substrate, and a magneto-plasmonic stack, comprising a nano-sized plasmonic resonator, a nanomagnet, and a capping layer, wherein the nano-sized plasmonic resonator is configured to receive circularly polarized light at an intensity to thereby increase normal component of plasmon-generated opto-magnetic field, HOM,z, at least at the interface of one of i) the nano-sized plasmonic resonator and the nanomagnet, or ii) the nanomagnet and the capping layer, whereby the HOM,z direction is perpendicular to the rotational direction of the circularly polarized light and the nanomagnets in the magneto-plasmonic stack switches its magnetic moment in response to a change of the HOM,z direction in response to a change of the rotational direction of the circularly polarized light.
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30.发明申请公开(公告)号：US20190331598A1
公开(公告)日：2019-10-31
申请号：US16399917
申请日：2019-04-30
Applicant: Purdue Research Foundation
IPC: G01N21/552 , G01N21/01 , G01R33/12
Abstract: A magneto-plasmonic nanostructure is disclosed. The structure includes a substrate, and a magneto-plasmonic stack, comprising a nano-sized plasmonic resonator, a nanomagnet, and a capping layer, wherein the nano-sized plasmonic resonator is configured to receive circularly polarized light at an intensity to thereby increase normal component of plasmon-generated opto-magnetic field, HOM,z, at least at the interface of one of i) the nano-sized plasmonic resonator and the nanomagnet, or ii) the nanomagnet and the capping layer, whereby the HOM,z direction is perpendicular to the rotational direction of the circularly polarized light and the nanomagnets in the magneto-plasmonic stack switches its magnetic moment in response to a change of the HOM,z direction in response to a change of the rotational direction of the circularly polarized light.
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