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公开(公告)号：US20210140817A1
公开(公告)日：2021-05-13
申请号：US17093211
申请日：2020-11-09
Applicant: California Institute of Technology
Inventor： Axel Scherer , Taeyoon Jeon , Jieun Myung
Abstract: An infrared spectrometer for operation in the mid-infrared spectral range is disclosed, where the spectrometer includes a Bragg-mirror-based spectral filter that is operative for providing an output optical signal whose spectral content is spatially dispersed along a first direction, where the Bragg mirrors include low-refractive-index layers comprising a polymer material that is transmissive across the mid-infrared spectral range and is characterized by less than ten absorption peaks with the operating spectral range of the spectrometer.
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公开(公告)号：US20230333294A1
公开(公告)日：2023-10-19
申请号：US18134295
申请日：2023-04-13
Applicant: California Institute of Technology
Inventor： Axel Scherer, Ph.D. , Jack Jewell , Taeyoon Jeon
CPC classification number: G02B5/0816 , G02B5/208
Abstract: The present disclosure is directed toward the simultaneous formation of a plurality of optical elements on a common substrate, where each optical element includes at least one layer having a desired non-uniform-thickness variation. Each such layer is formed such that it includes a plurality of material patterns characterized by the non-uniform thickness variation, where each material pattern is disposed on a different deposition site on the substrate. The material patterns are configured such that adjacent optical elements are separated by a boundary region for facilitating dicing of the substrate into individual optical elements. The non-uniform-thickness layer is formed by direct deposition through a shadow mask that includes a plurality of mask patterns that are either (1) configured to pass material flux in a non-uniform manner or (2) configured to shadow different portions of their respective deposition regions while being moved relative to the substrate.
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公开(公告)号：US20220349811A1
公开(公告)日：2022-11-03
申请号：US17864246
申请日：2022-07-13
Applicant: California Institute of Technology
Inventor： Axel Scherer, Ph.D. , Amirhossein Nateghi , Taeyoon Jeon
Abstract: The present disclosure is directed toward a measurement system capable of rapid spectroscopic and calorimetric analysis of the chemical makeup of a test sample. Systems in accordance with the present disclosure include a low-thermal-mass sample holder having a substrate whose surface has been engineered to create a large-area sample-collection surface. The sample holder includes an integrated temperature controller that can rapidly heat or cool the test sample. As a result, the sample holder enables differential scanning calorimetry Fourier-Transform Infrared Spectroscopy (DSC-FTIR) that can be performed in minutes rather than hours, as required in the prior art.
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公开(公告)号：US11422084B2
公开(公告)日：2022-08-23
申请号：US16212499
申请日：2018-12-06
Applicant: California Institute of Technology
Inventor： Axel Scherer , Amirhossein Nateghi , Taeyoon Jeon
IPC: G01N21/03 , G01N1/42 , G01N1/44 , G01N21/17 , G01N21/25 , G01N21/35 , G01N21/3504 , G01N21/3577
Abstract: The present disclosure is directed toward a measurement system capable of rapid spectroscopic and calorimetric analysis of the chemical makeup of a test sample. Systems in accordance with the present disclosure include a low-thermal-mass sample holder having a substrate whose surface has been engineered to create a large-area sample-collection surface. The sample holder includes an integrated temperature controller that can rapidly heat or cool the test sample. As a result, the sample holder enables differential scanning calorimetry Fourier-Transform Infrared Spectroscopy (DSC-FTIR) that can be performed in minutes rather than hours, as required in the prior art.
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公开(公告)号：US11287322B2
公开(公告)日：2022-03-29
申请号：US16782674
申请日：2020-02-05
Applicant: California Institute of Technology
Inventor： Axel Scherer , Taeyoon Jeon
Abstract: An infrared spectrometer for operation in the mid-infrared spectral range is presented, where the spectrometer includes a Bragg-mirror-based spectral filter that is operative for providing an interrogation signal whose spectral content is dispersed along a first direction at a filter aperture. The filter aperture is imaged through a sample by a thermal-imaging camera to create a focused image that is based on the interrogation signal and the absorption characteristics of the sample. As a result, embodiments in accordance with the present disclosure can be smaller, less complex, and less expensive than infrared spectrometers known in the prior art.
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Patent Agency Ranking
公开(公告)号：US20190170637A1
公开(公告)日：2019-06-06
申请号：US16212499
申请日：2018-12-06
Applicant: California Institute of Technology
Inventor： Axel Scherer , Amirhossein Nateghi , Taeyoon Jeon
Abstract: The present disclosure is directed toward a measurement system capable of rapid spectroscopic and calorimetric analysis of the chemical makeup of a test sample. Systems in accordance with the present disclosure include a low-thermal-mass sample holder having a substrate whose surface has been engineered to create a large-area sample-collection surface. The sample holder includes an integrated temperature controller that can rapidly heat or cool the test sample. As a result, the sample holder enables differential scanning calorimetry Fourier-Transform Infrared Spectroscopy (DSC-FTIR) that can be performed in minutes rather than hours, as required in the prior art.
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公开(公告)号：US11629996B2
公开(公告)日：2023-04-18
申请号：US17675575
申请日：2022-02-18
Applicant: California Institute of Technology
Inventor： Axel Scherer , Taeyoon Jeon
Abstract: An infrared spectrometer for operation in the mid-infrared spectral range is presented, where the spectrometer includes a Bragg-mirror-based spectral filter that is operative for providing an interrogation signal whose spectral content is dispersed along a first direction at a filter aperture. The filter aperture is imaged through a sample by a thermal-imaging camera to create a focused image that is based on the interrogation signal and the absorption characteristics of the sample. As a result, embodiments in accordance with the present disclosure can be smaller, less complex, and less expensive than infrared spectrometers known in the prior art.
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公开(公告)号：US11619577B2
公开(公告)日：2023-04-04
申请号：US17864246
申请日：2022-07-13
Applicant: California Institute of Technology
Inventor： Axel Scherer , Amirhossein Nateghi , Taeyoon Jeon
IPC: G01N21/03 , G01N1/42 , G01N1/44 , G01N21/17 , G01N21/25 , G01N21/35 , G01N21/3504 , G01N21/3577
Abstract: The present disclosure is directed toward a measurement system capable of rapid spectroscopic and calorimetric analysis of the chemical makeup of a test sample. Systems in accordance with the present disclosure include a low-thermal-mass sample holder having a substrate whose surface has been engineered to create a large-area sample-collection surface. The sample holder includes an integrated temperature controller that can rapidly heat or cool the test sample. As a result, the sample holder enables differential scanning calorimetry Fourier-Transform Infrared Spectroscopy (DSC-FTIR) that can be performed in minutes rather than hours, as required in the prior art.
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公开(公告)号：US11442002B2
公开(公告)日：2022-09-13
申请号：US16901352
申请日：2020-06-15
Applicant: California Institute of Technology
Inventor： Axel Scherer , Amirhossein Nateghi , Taeyoon Jeon , Frank T. Hartley
IPC: G01N21/03 , G01N1/42 , G01N1/44 , G01N21/17 , G01N21/25 , G01N21/35 , G01N21/3504 , G01N21/3577
Abstract: The present disclosure is directed toward optical elements, such as sample cuvettes, lenses, prisms, and the like, whose transmissivity is increased by the addition of a geometric anti-reflection layer disposed on at least one surface of the optical element, where the geometric anti-reflection layer includes a plurality of geometric features that collectively reduce the reflectivity of the interface between the surface and another medium. As a result, more of an optical signal incident on the surface passes through the interface. In some embodiments, every surface through which an optical signal passes includes a geometric anti-reflection layer. Due to the increased transmissivity of the optical element, in some embodiments, the use of low-cost, high-refractive-index materials, such as conventional silicon, is enabled.
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公开(公告)号：US20240192410A1
公开(公告)日：2024-06-13
申请号：US18300145
申请日：2023-04-13
Applicant: The Boeing Company , CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Leora Peltz , Axel Scherer , Taeyoon Jeon
CPC classification number: G02B5/085 , G02B5/0883 , G02B7/183 , H05K5/0209 , B64C30/00
Abstract: One disclosed example provides a vehicle, comprising an outer shell defining an interior, a component located within the interior, and a multilayer reflector located between the outer shell of the vehicle and the component. The multilayer reflector comprises a plurality of alternating layers of a first material with a first refractive index and a second material with a second refractive index, the second refractive index being higher than the first refractive index.
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