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公开(公告)号：US12209826B2
公开(公告)日：2025-01-28
申请号：US16460683
申请日：2019-07-02
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Marin Soljacic , Evelyn Wang , Yichen Shen , Bikramjit Bhatia , Arny Leroy
Abstract: A radiative cooling device can include a reflector positionable to permit operation during daylight hours.
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2.发明公开公开(公告)号：US20240210576A1
公开(公告)日：2024-06-27
申请号：US18286808
申请日：2022-04-12
Inventor： John Joannopoulos , Steven Johnson , Marin Soljacic , Steven Kooi , Justin Beroz , Ido Kaminer , Nicholas Rivera , Yi Yang , Charles Roques-Carmes , Ali Ghorashi , Zin Lin , Nicolas Romeo
IPC: G01T1/20 , G01N23/04 , G01N23/083 , G01N23/2251
CPC classification number: G01T1/2018 , G01N23/04 , G01N23/083 , G01N23/2251
Abstract: Methods and systems are disclosed that enhance the yield and speed of emission and control the spectral and angular emission of light emitted by materials under irradiation by high-energy particles through a process known as scintillation. In each case, a photonic structure (of nano- or micron-scale feature sizes) is integrated with a scintillating material, and the photonic structure enhances the yield or controls the spectrum of the material. Various embodiments of this technology and practical demonstrations are disclosed.
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3.发明公开公开(公告)号：US20240195140A1
公开(公告)日：2024-06-13
申请号：US18286790
申请日：2022-04-12
Applicant: Massachusetts Institute of Technology
Inventor： Marin Soljacic , Nicholas Rivera , Jamison Sloan , Yannick Salamin
CPC classification number: H01S3/109 , G02F1/354 , H01S3/1611 , H01S3/1643 , B82Y20/00
Abstract: A principle which enables the generation of macroscopic Fock and sub-Poissonian states is disclosed. Generic components of the system include: an electromagnetic structure (possessing one or more electromagnetic resonances), a nonlinear electromagnetic element (such as a nonlinear crystal near or inside the structure), and a source of light. In one embodiment, stimulated gain is used to create large numbers of photons in a cavity, but with very low photon number noise (uncertainty) in the cavity, and thus acts as a Fock laser. This Fock laser is capable of producing these states due to a very sharp intensity-dependent gain (or loss) that selects a particular photon number. The disclosed system and method are robust against both atomic and optical decoherence. Various examples of the new Fock laser design are also described.
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公开(公告)号：US20220123594A1
公开(公告)日：2022-04-21
申请号：US17462126
申请日：2021-08-31
Applicant: Massachusetts Institute of Technology
Inventor： John D. Joannopoulos , Aristeidis Karalis , Marin Soljacic
IPC: H02J50/12 , H01Q9/04 , B60L53/126 , H01F38/14
Abstract: Described herein are embodiments of a source high-Q resonator, optionally coupled to an energy source, a second high-Q resonator, optionally coupled to an energy drain that may be located a distance from the source resonator. A third high-Q resonator, optionally coupled to an energy drain that may be located a distance from the source resonator. The source resonator and at least one of the second resonator and third resonator may be coupled to transfer electromagnetic energy from said source resonator to said at least one of the second resonator and third resonator.
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公开(公告)号：US10768659B2
公开(公告)日：2020-09-08
申请号：US16273257
申请日：2019-02-12
Applicant: Massachusetts Institute of Technology
Inventor： Jacques Johannes Carolan , Mihika Prabhu , Scott A. Skirlo , Yichen Shen , Marin Soljacic , Nicholas Christopher Harris , Dirk Englund
IPC: G06E3/00 , G06N3/04 , G06N3/08 , G02F1/225 , G02F1/35 , G02F1/365 , G02F3/02 , G06N3/067 , G02F1/21
Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.
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Patent Agency Ranking
公开(公告)号：US20200025468A1
公开(公告)日：2020-01-23
申请号：US16460683
申请日：2019-07-02
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Marin Soljacic , Evelyn Wang , Yichen Shen , Bikramjit Bhatia , Arny Leroy
Abstract: A radiative cooling device can include a reflector positionable to permit operation during daylight hours.
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公开(公告)号：US20190173318A1
公开(公告)日：2019-06-06
申请号：US16184354
申请日：2018-11-08
Applicant: Massachusetts Institute of Technology
Inventor： John D. Joannopoulos , Aristeidis Karalis , Marin Soljacic
Abstract: Described herein are embodiments of a source high-Q resonator, optionally coupled to an energy source, a second high-Q resonator, optionally coupled to an energy drain that may be located a distance from the source resonator. A third high-Q resonator, optionally coupled to an energy drain that may be located a distance from the source resonator. The source resonator and at least one of the second resonator and third resonator may be coupled to transfer electromagnetic energy from said source resonator to said at least one of the second resonator and third resonator.
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公开(公告)号：US20190123586A1
公开(公告)日：2019-04-25
申请号：US16137795
申请日：2018-09-21
Applicant: Massachusetts Institute of Technology
Inventor： Aristeidis Karalis , Andre B. Kurs , Robert Moffatt , John D. Joannopoulos , Peter H. Fisher , Marin Soljacic
Abstract: Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a resonant field evanescent tail of the first resonator structure and a resonant field evanescent tail of the second resonator structure.
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公开(公告)号：US20180260703A1
公开(公告)日：2018-09-13
申请号：US15820906
申请日：2017-11-22
Applicant: Massachusetts Institute of Technology
Inventor： Marin Soljacic , Yichen Shen , Li Jing , Tena Dubcek , Scott Skirlo , John E. Peurifoy , Max Erik Tegmark
CPC classification number: G06N3/08 , G06F17/142 , G06F17/16 , G06N3/0445 , G06N3/084 , G06N20/00
Abstract: A system for training a neural network model, the neural network model comprising a plurality of layers including a first hidden layer associated with a first set of weights, the system comprising at least one computer hardware processor programmed to perform: obtaining training data; selecting a unitary rotational representation for representing a matrix of the first set weights, the selected unitary rotational representation comprising a plurality of parameters; training the neural network model using the training data using an iterative neural network training algorithm to obtain a trained neural network model, each iteration of the iterative neural network training algorithm comprising: updating values of the plurality of parameters in the selected unitary rotational representation for representing the matrix of the set of weights for the at least one hidden layer, and saving the trained neural network model.
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公开(公告)号：US10073191B2
公开(公告)日：2018-09-11
申请号：US14630080
申请日：2015-02-24
Applicant: Massachusetts Institute of Technology
Inventor： Yichen Shen , Dexin Ye , Ivan Celanovic , Steven G. Johnson , John D. Joannopoulos , Marin Soljacic
CPC classification number: G02B1/005 , G02B5/20 , G02B5/26 , G02B5/3066 , G02B5/3083 , G02F1/0131 , G02F1/0147
Abstract: A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.
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