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公开(公告)号：US11726233B2
公开(公告)日：2023-08-15
申请号：US16835302
申请日：2020-03-31
Applicant: Purdue Research Foundation
Inventor： Urcan Guler , Alexander V. Kildishev , Krishnakali Chaudhury , Shaimaa Ibrahim Azzam , Esteban E. Marinero-Caceres , Harsha Reddy , Alexandra Boltasseva , Vladimir M. Shalaev
CPC classification number: G02B1/002 , G01N21/8422 , B82Y20/00 , B82Y30/00 , B82Y40/00 , G01N2021/8427
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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Patent Agency Ranking
公开(公告)号：US20180329115A1
公开(公告)日：2018-11-15
申请号：US15978548
申请日：2018-05-14
Applicant: Purdue Research Foundation
Inventor： Alexander V. Kildishev , Urcan Guler , 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：US20210234498A1
公开(公告)日：2021-07-29
申请号：US16865192
申请日：2020-05-01
Applicant: Purdue Research Foundation
Inventor： Esteban Marinero-Caceres , Arnold Toppo , Sajid Choudhury , Urcan Guler , Zhaxylyk Kudyshev , Joseph Pekny , Swati Pol , Harsha Reddy , Vladimir Shalaev
Abstract: A system including a first cylindrical structure embedded into a second cylindrical structure. The first cylindrical structure includes a combustion chamber. The first cylinder additionally includes a plurality of plasmonic materials on an outer wall of the first cylindrical structure. The second cylindrical structure includes a plurality of photovoltaic cells on an inner wall of the second cylindrical structure. A radius of the second cylindrical structure is greater than a radius of the first cylindrical structure.
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公开(公告)号：US10670772B2
公开(公告)日：2020-06-02
申请号：US15978548
申请日：2018-05-14
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
IPC: G02B1/00 , G01N21/55 , G01N21/21 , G01K11/00 , G01L11/02 , G01N22/00 , G01N21/552 , G01L1/24 , G01K11/12 , G01D5/28
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：US20220397702A9
公开(公告)日：2022-12-15
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：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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