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公开(公告)号：US11733552B2
公开(公告)日：2023-08-22
申请号：US17219607
申请日：2021-03-31
Inventor： Yu Yao , Ali Basiri
IPC: G02F1/01
CPC classification number: G02F1/0147 , G02F2202/30 , G02F2203/10 , G02F2203/11
Abstract: An optical device is disclosed. The optical device includes a silicon substrate, an aluminum oxide layer, an aluminum layer between the silicon substrate and the aluminum oxide layer, and a metasurface nanostructure. The metasurface nanostructure may include a graphene monolayer on the aluminum oxide layer and an electrically conductive nanoantenna array in direct contact with the graphene monolayer, where each nanoantenna in the nanoantenna array may include multiple segments, each segment having one or more parameters selected to achieve simultaneous resonance in the mid-infrared and the near infrared spectral regions when the graphene monolayer is irradiated with a near infrared pump pulse and a continuous mid-infrared probe. The optical device generates mid-infrared pulses via ultrafast modulation of hot carriers in the monolayer graphene.
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Patent Agency Ranking
公开(公告)号：US20230405918A1
公开(公告)日：2023-12-21
申请号：US18360580
申请日：2023-07-27
CPC classification number: B29C64/00 , B33Y10/00 , H05K1/092 , B22F1/054 , B22F2999/00 , B22F10/12 , B22F2301/255 , B22F2998/10 , B33Y70/10
Abstract: An additive manufacturing process for forming a metallic layer on the surface of the substrate includes fabricating a substrate from a polymerizable composition by a stereolithographic process, and contacting the reactive surface with an aqueous solution including a metal precursor. The metal precursor includes a metal, and the polymerizable composition includes a multiplicity of multifunctional components. Each multifunctional component includes a reactive moiety extending from a surface of the substrate to form a reactive surface. An interface between the reactive surface and the aqueous solution is selectively irradiated to form nanoparticles including the metal in a desired pattern. The nanoparticles are chemically coupled to the reactive surface by reactive moieties, thereby forming a metallic layer on the surface of the substrate.
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13.发明授权公开(公告)号：US11487051B2
公开(公告)日：2022-11-01
申请号：US17157438
申请日：2021-01-25
Abstract: A circular polarization filter of a chiral metasurface structure is disclosed including a substrate having a nanograting pattern extending from the substrate, a dielectric layer formed directly on the nanograting pattern, and a plasmonic structure in direct contact with the dielectric layer, where the plasmonic structure may be oriented at a nonzero angle with respect to the nanograting pattern. An integrated polarization filter array is also disclosed including include a linear polarization filter, and a circular polarization filter. Methods of detecting full-stokes polarization using an integrated polarization filter array having both linear and circular polarization filters made from chiral metasurface structures is disclosed. Methods of using a Mueller matrix to evaluate polarization response of any optical device or system is also disclosed.
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公开(公告)号：US20220268633A1
公开(公告)日：2022-08-25
申请号：US17743937
申请日：2022-05-13
Inventor： Yu Yao , Chao Wang , Chu Wang , Jing Bai , Ali Basiri , Xiahui Chen
Abstract: A method of fabricating a polarization sensor is described. It includes a quarter-wave plate to convert circularly polarized light into linearly polarized light. The quarter-wave plate is realized as a metasurface. The sensor also includes a linear polarizer to analyze the light generated by the quarter wave plate, and a photodetector to receive the analyzed light. The sensor may be combined with other linear polarization sensors to form a sensor capable of complete measurement of the polarization state of incident light.
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公开(公告)号：US20220071613A1
公开(公告)日：2022-03-10
申请号：US17416240
申请日：2019-12-19
Inventor： Kaushal Rege , Ridha Inam , Yu Yao
Abstract: A method of closing an opening in a tissue comprises providing a light absorbing material, introducing the light absorbing material into a tissue opening, and irradiating the light absorbing material with at least one light source so as to increase a temperature of the light absorbing material, causing the tissue edges of the tissue opening adhere to the light absorbing material and/or to each other. A kit comprising a light absorbing material and a light emitting device is also described.
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公开(公告)号：US20210348969A1
公开(公告)日：2021-11-11
申请号：US17157438
申请日：2021-01-25
Abstract: A circular polarization filter of a chiral metasurface structure is disclosed including a substrate having a nanograting pattern extending from the substrate, a dielectric layer formed directly on the nanograting pattern, and a plasmonic structure in direct contact with the dielectric layer, where the plasmonic structure may be oriented at a nonzero angle with respect to the nanograting pattern. An integrated polarization filter array is also disclosed including include a linear polarization filter, and a circular polarization filter. Methods of detecting full-stokes polarization using an integrated polarization filter array having both linear and circular polarization filters made from chiral metasurface structures is disclosed. Methods of using a Mueller matrix to evaluate polarization response of any optical device or system is also disclosed.
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