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公开(公告)号：US20210044748A1
公开(公告)日：2021-02-11
申请号：US16894945
申请日：2020-06-08
申请人： Juejun Hu , Tian GU , Mikhail Shalaginov
发明人： Juejun Hu , Tian GU , Mikhail Shalaginov
摘要： Wide-angle optical functionality is beneficial for imaging and image projection devices. Conventionally, wide-angle operation is attained by a complicated assembly of optical elements. Recent advances have led to meta-surface lenses or meta-lenses, which are ultra-thin planar lenses with nanoantennas that control the phase, amplitude, and/or polarization of light. Here, we present a meta-lens capable of diffraction-limited focusing and imaging over an unprecedented >170° angular field of view (FOV). The lens is integrated on a one-piece flat substrate and includes an aperture on one side and a single meta-surface on the other side. The meta-surface corrects third-order Seidel aberrations, including coma, astigmatism, and field curvature. The meta-lens has a planar focal plane, which enables considerably simplified system architectures for imaging and projection. The meta-lens design is generic and can be readily adapted to different meta-atom geometries and wavelength ranges to meet diverse application demands.
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公开(公告)号：US20170299434A1
公开(公告)日：2017-10-19
申请号：US15602323
申请日：2017-05-23
申请人： Juejun Hu , Tian GU , Kazumi WADA , Anuradha Murthy AGARWAL , Lionel Cooper KIMERLING , Derek Matthew KITA , Junying LI , Fleur Jacolien FOK
发明人： Juejun Hu , Tian GU , Kazumi WADA , Anuradha Murthy AGARWAL , Lionel Cooper KIMERLING , Derek Matthew KITA , Junying LI , Fleur Jacolien FOK
CPC分类号： G01J3/12 , G01J3/0208 , G01J3/0218 , G01J3/0237 , G01J3/2823 , G01J3/32 , G01J2003/1226
摘要： An apparatus for generating a spectral image includes a filter to receive incident light. The filter has a variable refractive index. The apparatus also includes a modulator, operably coupled to the filter, to modulate the variable refractive index of the filter so as to generate a plurality of optical patterns from the incident light. The plurality of optical patterns represents the spectral image and each optical pattern in the plurality of optical patterns corresponds to a different modulation of the variable refractive index. The apparatus further includes a detector, in optical communication with the filter, to detect the plurality of optical patterns.
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公开(公告)号：US08903204B2
公开(公告)日：2014-12-02
申请号：US13082547
申请日：2011-04-08
申请人： Rohit Nair , Tian Gu , Michael W. Haney
发明人： Rohit Nair , Tian Gu , Michael W. Haney
CPC分类号： G02B6/43 , G02B6/4214 , G02B2006/12173
摘要： Optical interconnect systems and methods are disclosed. An optical interconnect system includes a substrate, an optical waveguide, and first and second modulators. The optical waveguide has a first waveguide portion extending to a first coupling structure, a second waveguide portion extending from the first coupling structure to a second coupling structure, and a third waveguide portion extending from the second coupling structure. The first modulator is positioned adjacent the first coupling structure, and the second modulator is positioned adjacent the second coupling structure. The optical interconnect method includes modulating light with a first modulator to produce one-time modulated light, and modulating the one-time modulated light with a second modulator to produce two-time modulated light.
摘要翻译： 公开了光互连系统和方法。 光学互连系统包括基板，光波导以及第一和第二调制器。 光波导具有延伸到第一耦合结构的第一波导部分，从第一耦合结构延伸到第二耦合结构的第二波导部分和从第二耦合结构延伸的第三波导部分。 第一调制器位于第一耦合结构附近，并且第二调制器位于第二耦合结构附近。 光学互连方法包括用第一调制器调制光以产生一次调制光，并用第二调制器调制一次调制光以产生两次调制光。
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公开(公告)号：US20210307608A1
公开(公告)日：2021-10-07
申请号：US17164425
申请日：2021-02-01
申请人： Juejun Hu , Tian GU , Mikhail Shalaginov , Fan YANG
发明人： Juejun Hu , Tian GU , Mikhail Shalaginov , Fan YANG
摘要： Meta-lens based ocular imaging, near-eye display, and eye-tracking systems are described. The systems can include a single focusing optic and an integrated circuit that provides illumination light and includes an imaging array. The focusing optic includes meta-atoms formed on a substrate. The systems may have no moving parts and achieve imaging or image-projection fields-of-view approaching or exceeding 180 degrees. Because of their low part count, the systems can be robust and have a very small form factor.
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公开(公告)号：US10240980B2
公开(公告)日：2019-03-26
申请号：US15602323
申请日：2017-05-23
申请人： Juejun Hu , Tian Gu , Kazumi Wada , Anuradha Murthy Agarwal , Lionel Cooper Kimerling , Derek Matthew Kita , Junying Li , Fleur Jacolien Fok
发明人： Juejun Hu , Tian Gu , Kazumi Wada , Anuradha Murthy Agarwal , Lionel Cooper Kimerling , Derek Matthew Kita , Junying Li , Fleur Jacolien Fok
摘要： An apparatus for generating a spectral image includes a filter to receive incident light. The filter has a variable refractive index. The apparatus also includes a modulator, operably coupled to the filter, to modulate the variable refractive index of the filter so as to generate a plurality of optical patterns from the incident light. The plurality of optical patterns represents the spectral image and each optical pattern in the plurality of optical patterns corresponds to a different modulation of the variable refractive index. The apparatus further includes a detector, in optical communication with the filter, to detect the plurality of optical patterns.
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公开(公告)号：US20110249933A1
公开(公告)日：2011-10-13
申请号：US13082547
申请日：2011-04-08
申请人： Rohit Nair , Tian Gu , Michael W. Haney
发明人： Rohit Nair , Tian Gu , Michael W. Haney
CPC分类号： G02B6/43 , G02B6/4214 , G02B2006/12173
摘要： Optical interconnect systems and methods are disclosed. An optical interconnect system includes a substrate, an optical waveguide, and first and second modulators. The optical waveguide has a first waveguide portion extending to a first coupling structure, a second waveguide portion extending from the first coupling structure to a second coupling structure, and a third waveguide portion extending from the second coupling structure. The first modulator is positioned adjacent the first coupling structure, and the second modulator is positioned adjacent the second coupling structure. The optical interconnect method includes modulating light with a first modulator to produce one-time modulated light, and modulating the one-time modulated light with a second modulator to produce two-time modulated light.
摘要翻译： 公开了光互连系统和方法。 光学互连系统包括基板，光波导以及第一和第二调制器。 光波导具有延伸到第一耦合结构的第一波导部分，从第一耦合结构延伸到第二耦合结构的第二波导部分和从第二耦合结构延伸的第三波导部分。 第一调制器位于第一耦合结构附近，并且第二调制器位于第二耦合结构附近。 光学互连方法包括用第一调制器调制光以产生一次调制光，并用第二调制器调制一次调制光以产生两次调制光。
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7.发明公开公开(公告)号：US20230242497A1
公开(公告)日：2023-08-03
申请号：US17908476
申请日：2021-03-05
申请人： Robert Roger BROEKHUIS , Pankaj Singh GAUTAM , Tian GU , Vidya Sagar Reddy SARSANI , SABIC Global Technologies, B.V.
IPC分类号： C07D301/08
CPC分类号： C07D301/08
摘要： An ethylene oxide (EO) production process comprising (a) introducing a first reactant mixture (C2H6, O2) to a first reactor to produce a first effluent stream (C2H4, C2H6, O2); (b) introducing a second reactant mixture to a second reactor to produce a second effluent stream (EO, C2H4, C2H6, O2); wherein the second reactant mixture comprises at least a portion of first effluent stream; (c) separating the second effluent stream into an EO product stream (EO) and recycle stream (C2H4, C2H6, O2); wherein ethylene is not separated from recycle stream and/or first effluent stream; and (d) recycling a first portion of recycle stream to the first reactor, and a second portion of recycle stream to the second reactor; wherein recycle split ratio
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公开(公告)号：US20230097182A1
公开(公告)日：2023-03-30
申请号：US17908486
申请日：2021-03-05
申请人： Robert Roger BROEKHUIS , Pankaj Singh GAUTAM , Tian GU , Vidya Sagar Reddy SARSANI , SABIC Global Technologies, B.V.
IPC分类号： C07D301/08
摘要： An ethylene oxide (EO) production process comprising (a) introducing a first reactant mixture (C2H6, C2H4, O2) to a first reactor system to produce a first effluent stream (C2H4, C2H6, O2), wherein the mole fraction of ethylene in first effluent stream is greater than in first reactant mixture; wherein the first reactor system is characterized by a first reactor system operating temperature of 270° C.-320° C.; wherein the first reactor system comprises oxidative dehydrogenation (ODH) stage(s); (b) introducing the first effluent stream to a second reactor to produce a second effluent stream (EO, C2H4, C2H6, O2); (c) separating the second effluent stream into an EO product stream (EO) and recycle stream (C2H4, C2H6, O2); wherein ethylene is not separated from recycle stream and/or first effluent stream; (d) recycling at least a portion of recycle stream to the first reactor system, and a optionally portion of recycle stream to the second reactor.
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公开(公告)号：US20220357484A1
公开(公告)日：2022-11-10
申请号：US17691851
申请日：2022-03-10
申请人： Juejun Hu , Tian GU , Fan YANG , Luigi Ranno , Hung-I LIN
发明人： Juejun Hu , Tian GU , Fan YANG , Luigi Ranno , Hung-I LIN
摘要： The present technology is related to optics, optical systems, and optically induced micro-/nano-fabrication methods. It includes metasurface optics, direct laser writing, and microscopy. Flat optic devices, architectures, and methods can achieve superb optical performance and structural simplicity compared to traditional bulk optical systems.
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公开(公告)号：US20210333575A1
公开(公告)日：2021-10-28
申请号：US17183267
申请日：2021-02-23
申请人： Juejun Hu , Tian GU , Yifei ZHANG , Carlos Andres Rios Ocampo , Mikhail Shalaginov , Xiaoming Qiu
发明人： Juejun Hu , Tian GU , Yifei ZHANG , Carlos Andres Rios Ocampo , Mikhail Shalaginov , Xiaoming Qiu
IPC分类号： G02F1/01
摘要： Reversible phase-change materials (PCMs) can be added to or incorporated into meta-lenses, wave plates, waveguides, gratings, and other optical components to form active optical devices with controllable and adjustable optical characteristics. Local heating can be used to induce solid-state phase changes and large refractive index changes in the PCMs. The phase and index changes can provide large changes in the device's optical characteristics. Optical devices with PCM can be used for imaging applications, orbital angular momentum control, photonic integrated circuits and optical communication systems, beam steering, and other application.
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