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公开(公告)号：US20210302623A1
公开(公告)日：2021-09-30
申请号：US16835302
申请日：2020-03-31
Applicant: Purdue Research Foundation
Inventor： Urcan Guler , Alexander V. Kildishev , Krishnakali Chaudhury , Shaimaa Azzam , Esteban E. Marinero-Caceres , Harsha Reddy , Alexandra Boltasseva , Vladimir M. Shalaev
Abstract: An optical sensor system, comprising refractory plasmonic elements that can withstand temperatures exceeding 2500° C. in chemically aggressive and harsh environments that impose stress, strain and vibrations. A plasmonic metamaterial or metasurface, engineered to have a specific spectral and angular response, exhibits optical reflection characteristics that are altered by varying physical environmental conditions including but not limited to temperature, surface chemistry or elastic stress, strain and other types of mechanical load. The metamaterial or metasurface comprises a set of ultra-thin structured layers with a total thickness of less than tens of microns that can be deployed onto surfaces of devices operating in harsh environmental conditions. The top interface of the metamaterial or metasurface is illuminated with a light source, either through free space or via an optical fiber, and the reflected signal is detected employing remote detectors.
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公开(公告)号：US20200285043A1
公开(公告)日：2020-09-10
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
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：US20190353830A1
公开(公告)日：2019-11-21
申请号：US16411038
申请日：2019-05-13
Applicant: Purdue Research Foundation
Inventor： Alexander V. Kildishev , Di Wang , Zhaxylyk A. Kudyshev , Maowen Song , Alexandra Boltasseva , Vladimir M. Shalaev
IPC: G02B5/00 , G11B7/1381 , G11B7/125
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 nano antennae, 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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24.发明申请公开(公告)号：US20160334758A1
公开(公告)日：2016-11-17
申请号：US15152535
申请日：2016-05-11
Applicant: Purdue Research Foundation
Inventor： Amr Shaltout , Sajid Choudhury , Alexander V. Kildishev , Alexandra Boltasseva , Vladimir M. Shalaev
CPC classification number: G03H1/02 , G02B1/00 , G02B1/002 , G02F1/00 , G02F1/01 , G03H1/024 , G03H1/0244 , G03H2001/026 , G03H2001/2263 , G03H2240/11 , G03H2240/21 , H01Q15/0006 , H01Q15/10
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.
Abstract translation: 用于产生亚波长全息图的装置。 该装置包括连接到基底的表面层。 表面层包括等离子体激元天线阵列，其同时对通过阵列指向的光的波长和相位信息进行编码以产生全息图。 波长由天线尺寸确定，相位取决于天线的方向。
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