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    Wireless non-radiative energy transfer
    11.
    发明授权
    Wireless non-radiative energy transfer 有权
    无线非辐射能量传输

    公开(公告)号：US09065286B2

    公开(公告)日：2015-06-23

    申请号：US14302662

    申请日：2014-06-12

    Applicant: Massachusetts Institute of Technology

    Inventor： John D. Joannopoulos ,  Aristeidis Karalis ,  Marin Soljacic

    IPC: H02J5/00 ,  B60L11/18 ,  H01Q9/04 ,  H02J17/00

    CPC classification number: H02J50/12 ,  B60L11/18 ,  B60L11/182 ,  H01F38/14 ,  H01Q9/04 ,  H02J5/005 ,  H02J17/00 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7088 ,  Y02T90/122 ,  Y02T90/14 ,  Y10T307/25

    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.

    Abstract translation: 这里描述的是源高Q谐振器的实施例，其可选地耦合到能量源，第二高Q谐振器，可选地耦合到可以距离源谐振器一定距离的能量漏极。 第三高Q谐振器，可选地耦合到可以位于离源谐振器一定距离的能量漏极。 源谐振器和第二谐振器和第三谐振器中的至少一个可以被耦合以将电磁能量从所述源谐振器传递到所述第二谐振器和第三谐振器中的至少一个。

    HIGHLY-EFFICIENT NEAR-FIELD THERMOPHOTOVOLTAICS USING SURFACE-POLARITON EMITTERS AND THIN-FILM PHOTOVOLTAIC-CELL ABSORBERS
    13.
    发明申请
    HIGHLY-EFFICIENT NEAR-FIELD THERMOPHOTOVOLTAICS USING SURFACE-POLARITON EMITTERS AND THIN-FILM PHOTOVOLTAIC-CELL ABSORBERS 审中-公开

    公开(公告)号：US20180131311A1

    公开(公告)日：2018-05-10

    申请号：US15864634

    申请日：2018-01-08

    Applicant: Massachusetts Institute of Technology

    Inventor： Aristeidis KARALIS ,  John D. Joannopoulos

    IPC: H02S10/30 ,  H02S40/40 ,  H01L31/04

    CPC classification number: H02S10/30 ,  H01L31/022425 ,  H01L31/04 ,  H02S40/40

    Abstract: A near-field ThermoPhotoVoltaic system comprises a hot emitter and a cold absorbing PhotoVoltaic cell separated by a small gap. The emitter emits hot photons and includes a polaritonic material that supports a surface-polaritonic mode. The PhotoVoltaic cell has a metallic back electrode and includes a semiconductor that absorbs the photons and supports guided photonic modes. The surface-polaritonic mode and the first guided photonic mode resonantly couple at a frequency slightly above the semiconductor bandgap. The system material and geometrical parameters are such that the surface-polaritonic mode and the first guided photonic mode are approximately impedance-matched, so that power is transmitted at frequencies just above the semiconductor bandgap, even for relatively large gap widths, while the power transmitted at other frequencies is relatively small, leading to high system efficiency. Also described the PhotoVoltaic cell's front electrode, which may include highly-doped semiconductor regions, thin conducting oxide or silver films, or graphene layers.

    Efficient near-field wireless energy transfer using adiabatic system variations
    16.
    发明授权
    Efficient near-field wireless energy transfer using adiabatic system variations 有权
    使用绝热系统变化的高效近场无线能量传输

    公开(公告)号：US08836172B2

    公开(公告)日：2014-09-16

    申请号：US13677407

    申请日：2012-11-15

    Applicant: Massachusetts Institute of Technology

    Inventor： Rafif E. Hamam ,  Aristeidis Karalis ,  John D. Joannopoulos ,  Marin Soljacic

    IPC: H01F37/00

    CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H04B5/0037

    Abstract: Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is κ1B, transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is κB2, and during the wireless energy transfers, adjusting at least one of the coupling rates κ1B and κB2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.

    Abstract translation: 公开了一种无线传输能量的方法，包括从第一谐振器结构向中间谐振器结构无线传输能量，其中第一谐振器结构和中间谐振器结构之间的耦合速率为1B，从中间谐振器结构无线传送能量 到第二谐振器结构，其中中间谐振器结构和第二谐振器结构之间的耦合速率为B2，并且在无线能量传输期间，调整耦合速率“k”和“k”中的至少一个以减少能量 积聚在中间谐振器结构中，并且通过中间谐振器结构改善从第一谐振器结构到第二谐振器结构的无线能量传输。

    METHODS AND APPARATUS FOR GENERATING COHERENT LIGHT AT NEW FREQUENCIES VIA TIME VARYING LASING
    18.
    发明申请
    METHODS AND APPARATUS FOR GENERATING COHERENT LIGHT AT NEW FREQUENCIES VIA TIME VARYING LASING 有权

    公开(公告)号：US20250112435A1

    公开(公告)日：2025-04-03

    申请号：US18845799

    申请日：2023-02-22

    Applicant: Massachusetts Institute of Technology

    Inventor： John D. Joannopoulos ,  Marin Soljacic ,  Nicholas H. Rivera ,  Jamison M. Sloan

    IPC: H01S3/09

    Abstract: A time varying laser which can operate by taking advantage of transitions between time varying quasi-energy levels which are present in the driven system is disclosed. This can allow for laser operation at frequencies which are new, compared to the operation of the laser in absence of time-modulation. It can also allow for a novel mode of operation in which the system provides gain at multiple frequencies simultaneously, in a coherent fashion which is fundamentally different from multi-mode behavior in conventional lasers. Additionally, in systems with sufficiently strong modulation, these principles can lead to lasers which produce gain even in the thermodynamic ground state of the system, leading to a new form of lasing without inversion (LWI). In addition, these techniques have the potential to be used to create lasers at high frequencies (UV-Xray) which have been difficult to achieve via conventional laser mechanisms.

    WIRELESS NON-RADIATIVE ENERGY TRANSFER
    20.
    发明申请
    WIRELESS NON-RADIATIVE ENERGY TRANSFER 审中-公开

    公开(公告)号：US20200343771A1

    公开(公告)日：2020-10-29

    申请号：US16851598

    申请日：2020-04-17

    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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